mount(2)                      System Calls Manual                     mount(2)

<?><?><?>
       mount - <?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?>.

LIBRARY
       Standard C library (libc, -lc)

<?><?><?><?><?><?><?><?><?>
       #include <sys/mount.h>

       int mount(const char *source, const char *target,
                 const char *filesystemtype, unsigned long mountflags,
                 const void *_Nullable data);

<?><?><?><?><?><?><?><?>
       <?><?><?><?><?> mount() <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?> <?> source (<?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>, <?><?> <?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?>,
       <?><?><?> <?><?><?><?><?>, <?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>), <?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?> target(<?><?><?><?><?><?><?><?>
       <?><?><?> <?><?><?><?><?>).

       <?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?> (Linux:
       <?><?><?><?><?><?> CAP_SYS_ADMIN).

       <?><?><?><?><?><?><?> filesystemtype <?><?><?><?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?> <?>  /proc/filesystems
       (<?><?><?><?><?><?><?><?>: "btrfs", "ext4", "jfs", "xfs", "vfat",
       "fuse", "tmpfs", "cgroup", "proc", "mqueue", "nfs", "cifs", "iso9660").
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.

       The data argument is interpreted by the different filesystems.
       Typically it is a string of comma-separated options understood by this
       filesystem.  See mount(8)  for details of the options available for
       each filesystem type.  This argument may be specified as NULL, if there
       are no options.

       <?><?><?><?><?> mount() <?><?><?><?><?><?><?><?><?> <?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?>, <?> <?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?> <?> mountflags.
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
       mountflags, <?> <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?> <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>:

       o  <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?>: mountflags
          <?><?><?><?><?><?><?><?> MS_REMOUNT.

       o  <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> (bind mount):
          mountflags <?><?><?><?><?><?><?><?> MS_BIND.

       o  <?><?><?><?><?><?><?><?> <?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?>: mountflags
          <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?> MS_SHARED, MS_PRIVATE,
          MS_SLAVE <?><?><?> MS_UNBINDABLE.

       o  <?><?><?><?><?><?><?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?>
          <?><?><?><?><?>: mountflags <?><?><?><?><?><?><?><?> MS_MOVE.

       o  <?><?><?><?><?><?><?> <?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?>: mountflags <?><?>
          <?><?><?><?><?><?><?><?> <?><?> <?><?><?><?> <?><?>
          <?><?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?>.

       <?><?><?><?><?><?> <?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?>. <?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> mount()
       <?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?>
       mountflags, <?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>.

   <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>,
       <?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?>  mountflags.
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?> <?><?>,
       <?><?><?> <?><?><?><?><?><?><?><?><?> <?><?> <?><?><?> <?><?><?>
       <?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>. <?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?>
       <?><?><?><?><?><?>.

       MS_DIRSYNC (<?><?><?><?><?><?><?> <?> Linux 2.5.19)
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>. <?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?>
              chattr(1).

       MS_LAZYTIME (<?><?><?><?><?><?><?> <?> Linux 4.0)
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?>, <?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?> (atime, mtime, ctime) <?><?><?><?><?><?>
              <?> <?><?><?><?><?><?>. <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?> <?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>:

              o  <?><?><?><?><?><?><?><?><?><?><?>
                 <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
                 <?><?><?> <?><?><?><?><?><?><?><?><?><?>
                 <?><?><?><?><?><?><?><?><?>, <?><?>
                 <?><?><?><?><?><?><?><?><?><?> <?>
                 <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
                 <?><?><?><?><?><?>;

              o  <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
                 fsync(2), syncfs(2), or sync(2);

              o  <?><?><?><?><?><?><?><?><?><?><?><?><?><?>
                 <?><?><?><?><?><?><?><?><?><?>
                 <?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?>;
                 <?><?><?>

              o  <?><?><?><?><?><?> <?><?><?><?><?> 24 <?><?><?><?><?> <?>
                 <?><?><?><?><?><?><?> <?><?><?><?><?><?>
                 <?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>.

              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?> inode, <?><?><?><?><?><?><?><?> mtime <?>
              atime. <?><?><?><?><?><?>, <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>, <?><?> <?><?><?><?> atime <?> mtime
              <?><?> <?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?> 24 <?><?><?><?>.

              <?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>, <?><?><?>
              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?> <?> <?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?>, <?> <?><?><?><?><?> <?><?><?><?><?><?>,
              <?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              MS_STRICTATIME (<?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> MS_STRICTATIME <?> MS_LAZYTIME
              <?> <?><?><?>, <?><?><?> stat(2) <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>, <?><?>
              <?><?><?><?><?><?><?><?><?><?> atime <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>
              <?><?><?><?><?><?> <?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>).

       MS_MANDLOCK
              Permit mandatory locking on files in this filesystem.
              (Mandatory locking must still be enabled on a per-file basis, as
              described in fcntl(2).)  Since Linux 4.5, this mount option
              requires the CAP_SYS_ADMIN capability and a kernel configured
              with the CONFIG_MANDATORY_FILE_LOCKING option.  Mandatory
              locking has been fully deprecated in Linux 5.15, so this flag
              should be considered deprecated.

       MS_NOATIME
              <?><?> <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?> (<?><?><?><?> <?><?><?><?><?>)
              <?><?><?><?><?><?> <?> <?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>.

       MS_NODEV
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?><?><?>
              (<?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>) <?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.

       MS_NODIRATIME
              <?><?> <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.
              <?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              MS_NOATIME; <?><?> <?><?><?><?> <?><?><?> MS_NOATIME
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> MS_NODIRATIME.

       MS_NOEXEC
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?> <?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.

       MS_NOSUID
              Do not honor set-user-ID and set-group-ID bits or file
              capabilities when executing programs from this filesystem.  In
              addition, SELinux domain transitions require the permission
              nosuid_transition, which in turn needs also the policy
              capability nnp_nosuid_transition.

       MS_RDONLY
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?> <?><?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?> <?><?><?><?><?><?>.

       MS_REC (<?><?><?><?><?><?><?> <?> Linux 2.4.11)
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?>
              MS_BIND <?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?>. <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?>.

       MS_RELATIME (<?><?><?><?><?><?><?> <?> Linux 2.6.20)
              <?><?><?> <?><?><?><?><?><?><?> <?> <?><?><?><?><?> <?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?>
              <?><?><?><?><?> (atime) <?><?><?><?><?><?><?><?><?><?><?>,
              <?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> atime <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?> (mtime) <?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?> (ctime).
              <?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?> (<?><?><?><?><?><?><?><?>, mutt(1)),
              <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?>, <?><?><?>
              <?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>. <?><?><?><?><?><?><?> <?> Linux
              2.6.30 <?> <?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?><?>
              (<?><?><?><?> <?><?> <?><?><?><?><?><?> MS_NOATIME), <?>
              <?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?> MS_STRICTATIME.
              <?><?><?><?><?>, <?><?><?><?><?><?><?> <?> Linux 2.6.30
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?> <?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?> <?><?><?><?>.

       MS_SILENT (<?><?><?><?><?><?><?> <?> Linux 2.6.17)
              <?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> (printk())
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?> <?><?><?><?>.
              <?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?> <?><?><?><?><?><?><?><?><?><?> <?><?><?><?> MS_VERBOSE
              (<?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?> Linux
              2.4.12), <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?> <?><?> <?><?><?><?><?><?><?>.

       MS_STRICTATIME (<?><?><?><?><?><?><?> <?> Linux 2.6.30)
              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> (atime)
              <?><?><?> <?><?><?><?><?><?><?> <?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              (<?><?><?> <?><?><?><?><?><?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?> <?><?> Linux 2.6.30).
              <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?> MS_NOATIME <?> MS_RELATIME.

       MS_SYNCHRONOUS
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> (<?><?><?> <?><?><?><?> <?><?>
              <?><?><?><?> O_SYNC <?><?><?> open(2) <?><?><?>
              <?><?><?><?><?><?> <?><?><?> <?><?><?><?> <?><?><?><?><?><?>,
              <?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>).

       MS_NOSYMFOLLOW (<?><?><?><?><?><?><?> <?> Linux 5.10)
              Do not follow symbolic links when resolving paths.  Symbolic
              links can still be created, and readlink(1), readlink(2),
              realpath(1), and realpath(3)  all still work properly.

       <?><?><?><?><?><?><?> <?> Linux 2.4 <?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> (<?><?><?><?>
       <?><?><?><?><?> <?><?> <?><?><?><?><?><?>), <?> <?><?><?><?><?><?> --
       <?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?>, <?><?> <?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?> (<?><?><?><?><?> <?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?><?><?>).

       <?><?><?><?><?> <?><?><?><?><?><?> <?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>:

       o  <?><?><?><?><?><?><?> <?> Linux 2.4: <?><?><?><?><?> MS_NODEV,
          MS_NOEXEC <?> MS_NOSUID <?><?><?><?><?><?><?><?> <?><?><?>
          <?><?><?><?><?><?> <?><?><?><?><?>
          <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>.

       o  Additionally, since Linux 2.6.16: MS_NOATIME and MS_NODIRATIME.

       o  Additionally, since Linux 2.6.20: MS_RELATIME.

       The following flags are per-superblock: MS_DIRSYNC, MS_LAZYTIME,
       MS_MANDLOCK, MS_SILENT, and MS_SYNCHRONOUS.  The initial settings of
       these flags are determined on the first mount of the filesystem, and
       will be shared by all subsequent mounts of the same filesystem.
       Subsequently, the settings of the flags can be changed via a remount
       operation (see below).  Such changes will be visible via all mounts
       associated with the filesystem.

       <?><?><?><?><?><?><?> <?> Linux 2.6.16 <?><?><?><?> MS_RDONLY
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?><?>, <?> <?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?>, <?><?><?><?> <?><?><?>
       <?><?><?><?> <?> <?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?>.

   <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>.
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?>
       MS_REMOUNT <?> mountflags. <?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> mountflags <?> data
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?>. target <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> mount().

       <?><?><?><?><?><?><?><?><?> source <?> filesystemtype
       <?><?><?><?><?><?><?><?><?><?><?><?>.

       <?><?><?><?><?><?><?><?><?> mountflags <?> data <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> mount(),
       <?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>.

       The following mountflags can be changed: MS_LAZYTIME, MS_MANDLOCK,
       MS_NOATIME, MS_NODEV, MS_NODIRATIME, MS_NOEXEC, MS_NOSUID, MS_RELATIME,
       MS_RDONLY, MS_STRICTATIME (whose effect is to clear the MS_NOATIME and
       MS_RELATIME flags), and MS_SYNCHRONOUS.  Attempts to change the setting
       of the MS_DIRSYNC and MS_SILENT flags during a remount are silently
       ignored.  Note that changes to per-superblock flags are visible via all
       mounts of the associated filesystem (because the per-superblock flags
       are shared by all mounts).

       <?><?><?><?><?><?><?> <?> Linux 3.17, <?><?><?><?> <?><?> <?><?><?><?>
       <?><?> <?><?><?><?><?><?><?><?> MS_NOATIME, MS_NODIRATIME, MS_RELATIME,
       <?><?><?> MS_STRICTATIME <?><?> <?><?><?><?><?><?><?> <?> mountflags ,
       <?><?> <?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?> (<?> <?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?> MS_RELATIME).

       Since Linux 2.6.26, the MS_REMOUNT flag can be used with MS_BIND to
       modify only the per-mount-point flags.  This is particularly useful for
       setting or clearing the "read-only" flag on a mount without changing
       the underlying filesystem.  Specifying mountflags as:

           MS_REMOUNT | MS_BIND | MS_RDONLY

       will make access through this mountpoint read-only, without affecting
       other mounts.

   <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> mountflags <?><?><?><?><?><?><?><?> MS_BIND
       (<?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?> <?> Linux 2.4), <?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>. <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>.
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?> <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       chroot(2).

       <?><?><?><?><?><?><?><?><?> filesystemtype <?> data
       <?><?><?><?><?><?><?><?><?><?><?><?>.

       The remaining bits (other than MS_REC, described below) in the
       mountflags argument are also ignored.  (The bind mount has the same
       mount options as the underlying mount.)  However, see the discussion of
       remounting above, for a method of making an existing bind mount
       read-only.

       <?><?> <?><?><?><?><?><?><?><?><?>, <?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?>; <?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>, <?><?> <?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>. <?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?> MS_REC, <?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>: <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?> source (<?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>) <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?><?>
       target.

   <?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> mountflags <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?>
       <?><?><?><?><?><?> MS_SHARED, MS_PRIVATE, MS_SLAVE, <?><?><?>
       MS_UNBINDABLE (<?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?> Linux 2.6.15), <?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>.
       <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?> <?><?><?><?><?><?>,
       <?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>.

       <?><?><?> <?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?> MS_REC
       (<?><?><?><?><?><?> <?><?><?><?>) <?> MS_SILENT
       (<?><?><?><?><?><?><?><?><?><?><?><?>).

       <?><?><?><?><?><?><?><?><?> source, filesystemtype <?> data
       <?><?><?><?><?><?><?><?><?><?><?><?>.

       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?>:

       MS_SHARED
              Make this mount shared.  Mount and unmount events immediately
              under this mount will propagate to the other mounts that are
              members of this mount's peer group.  Propagation here means that
              the same mount or unmount will automatically occur under all of
              the other mounts in the peer group.  Conversely, mount and
              unmount events that take place under peer mounts will propagate
              to this mount.

       MS_PRIVATE
              Make this mount private.  Mount and unmount events do not
              propagate into or out of this mount.

       MS_SLAVE
              If this is a shared mount that is a member of a peer group that
              contains other members, convert it to a slave mount.  If this is
              a shared mount that is a member of a peer group that contains no
              other members, convert it to a private mount.  Otherwise, the
              propagation type of the mount is left unchanged.

              When a mount is a slave, mount and unmount events propagate into
              this mount from the (master) shared peer group of which it was
              formerly a member.  Mount and unmount events under this mount do
              not propagate to any peer.

              A mount can be the slave of another peer group while at the same
              time sharing mount and unmount events with a peer group of which
              it is a member.

       MS_UNBINDABLE
              <?><?><?><?><?><?> <?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>. <?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>.
              <?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> (mount() <?> <?><?><?><?><?><?><?>
              MS_BIND <?> MS_REC) <?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> (<?>. <?>., <?><?>
              <?><?><?><?><?><?><?><?><?><?>) <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>.

       By default, changing the propagation type affects only the target
       mount.  If the MS_REC flag is also specified in mountflags, then the
       propagation type of all mounts under target is also changed.

       <?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> (<?><?><?><?><?><?><?> <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>) <?><?><?><?><?><?><?><?> <?>
       mount_namespaces(7).

   <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       If mountflags contains the flag MS_MOVE (available since Linux 2.4.18),
       then move a subtree: source specifies an existing mount and target
       specifies the new location to which that mount is to be relocated.  The
       move is atomic: at no point is the subtree unmounted.

       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?> mountflags
       <?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?> <?>
       <?><?><?><?><?><?><?><?><?> filesystemtype <?> data.

   Creating a new mount
       If none of MS_REMOUNT, MS_BIND, MS_MOVE, MS_SHARED, MS_PRIVATE,
       MS_SLAVE, or MS_UNBINDABLE is specified in mountflags, then mount()
       performs its default action: creating a new mount.  source specifies
       the source for the new mount, and target specifies the directory at
       which to create the mount point.

       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       filesystemtype <?> data, <?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?> <?> mountflags.

<?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       On success, zero is returned.  On error, -1 is returned, and errno is
       set to indicate the error.

<?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?>
       <?><?><?><?>, <?><?> <?><?><?><?><?><?><?> <?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>. <?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?> <?><?><?><?> <?><?><?><?> <?><?><?><?><?><?> <?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?>. <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?> Linux.

       EACCES <?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?>-<?><?>
              <?><?><?><?><?> <?><?><?><?><?> <?><?><?><?>,
              <?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> (<?><?>.
              <?><?><?><?><?><?><?><?><?> <?> path_resolution(7)).

       EACCES <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?>, <?><?> <?><?><?> <?><?><?><?><?> ms_rdonly.

              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?> <?><?><?><?><?><?> <?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?>: <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>,
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?>; <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?>; <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?>; <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>, <?><?>-<?><?> <?><?><?><?> <?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?> <?> <?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?>/<?><?><?><?><?><?> (<?><?><?><?> <?><?>
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?>).

              <?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> EROFS.

       EACCES <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>  source
              <?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>, <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?><?> MS_NODEV.

       EBUSY  <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?> <?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?><?><?><?>.

       EBUSY  source <?><?> <?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?>, <?><?><?><?><?><?> <?><?><?> <?><?>
              <?><?><?> <?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?>,
              <?><?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?>.

       EFAULT <?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?>-<?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>.

       EINVAL <?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>.

       EINVAL <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> (MS_REMOUNT),
              <?><?> source <?><?><?> <?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?> target.

       EINVAL A move operation (MS_MOVE)  was attempted, but the mount tree
              under source includes unbindable mounts and target is a mount
              that has propagation type MS_SHARED.

       EINVAL <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              (MS_MOVE), <?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> source
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> MS_SHARED.

       EINVAL A move operation (MS_MOVE)  was attempted, but source was not a
              mount, or was '/'.

       EINVAL A bind operation (MS_BIND)  was requested where source referred
              a mount namespace magic link (i.e., a /proc/pid/ns/mnt magic
              link or a bind mount to such a link)  and the propagation type
              of the parent mount of target was MS_SHARED, but propagation of
              the requested bind mount could lead to a circular dependency
              that might prevent the mount namespace from ever being freed.

       EINVAL mountflags <?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?> MS_SHARED,
              MS_PRIVATE, MS_SLAVE, <?><?><?> MS_UNBINDABLE.

       EINVAL mountflags <?><?><?><?><?><?><?><?> MS_SHARED, MS_PRIVATE,
              MS_SLAVE, <?><?><?> MS_UNBINDABLE <?> <?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?>, <?><?><?><?><?><?><?><?>
              <?><?> MS_REC <?><?><?> MS_SILENT.

       EINVAL <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>.

       EINVAL <?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> (<?>. <?>.,
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>,
              <?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?>)
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?> (MS_BIND) <?><?><?>
              <?><?><?><?><?><?><?><?> (MS_REC), <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?> <?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?>, <?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?>.

       ELOOP  <?><?> <?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?><?>.

       ELOOP  <?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>, <?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>.

       EMFILE (<?> <?><?><?><?><?><?>, <?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?>): <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?>.

       ENAMETOOLONG
              <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?> MAXPATHLEN.

       ENODEV <?><?><?> <?><?> filesystemtype <?> <?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?>.

       ENOENT <?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?> <?><?><?>
              <?><?><?><?> <?><?> <?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?><?><?><?><?>.

       ENOMEM <?><?><?><?> <?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
              <?><?><?><?><?> <?><?><?> <?><?><?><?><?><?>.

       ENOTBLK
              <?><?><?><?><?><?><?><?> source <?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?> (<?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
              <?><?><?><?><?><?><?><?><?>).

       ENOTDIR
              <?><?><?><?><?><?><?><?> target <?><?><?> <?><?><?><?><?><?><?>
              source <?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?>.

       ENXIO  <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> source <?><?><?>
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>.

       EPERM  <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?>
              <?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?>.

       EPERM  An attempt was made to modify (MS_REMOUNT)  the MS_RDONLY,
              MS_NOSUID, or MS_NOEXEC flag, or one of the "atime" flags
              (MS_NOATIME, MS_NODIRATIME, MS_RELATIME)  of an existing mount,
              but the mount is locked; see mount_namespaces(7).

       EROFS  <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?>
              <?><?><?><?><?><?> <?><?><?> <?><?><?><?><?> MS_RDONLY.
              <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> EACCES,
              <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>.

<?><?><?><?><?><?><?><?><?>
       Linux.

<?><?><?><?><?><?><?>
       The definitions of MS_DIRSYNC, MS_MOVE, MS_PRIVATE, MS_REC,
       MS_RELATIME, MS_SHARED, MS_SLAVE, MS_STRICTATIME, and MS_UNBINDABLE
       were added to glibc headers in glibc 2.12.

       <?><?><?><?><?><?><?> <?> Linux 2.4 <?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?>
       <?><?><?><?><?>.

       The mountflags argument may have the magic number 0xC0ED (MS_MGC_VAL)
       in the top 16 bits.  (All of the other flags discussed in DESCRIPTION
       occupy the low order 16 bits of mountflags.)  Specifying MS_MGC_VAL was
       required before Linux 2.4, but since Linux 2.4 is no longer required
       and is ignored if specified.

       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?> MS_SYNC <?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?> MS_SYNCHRONOUS <?> 1.1.69,
       <?><?><?><?><?> <?> <mman.h> <?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?> MS_SYNC.

       <?><?> Linux 2.4 <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> set-UID <?><?><?> set-GID <?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?><?><?>
       MS_NOSUID, <?><?><?><?><?><?><?><?> <?><?><?><?><?><?> EPERM.
       <?><?><?><?><?><?><?> <?> Linux 2.4 <?><?><?><?> set-UID <?> set-GID
       <?> <?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>.

<?><?><?><?><?><?><?><?><?>
   <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       Starting with Linux 2.4.19, Linux provides mount namespaces.  A mount
       namespace is the set of filesystem mounts that are visible to a
       process.  Mount namespaces can be (and usually are)  shared between
       multiple processes, and changes to the namespace (i.e., mounts and
       unmounts) by one process are visible to all other processes sharing the
       same namespace.  (The pre-2.4.19 Linux situation can be considered as
       one in which a single namespace was shared by every process on the
       system.)

       <?><?><?><?><?><?><?>-<?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?> fork(2),
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?>; <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?> <?><?><?><?><?><?>
       execve(2).

       <?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>: <?><?>
       <?><?><?> <?><?><?><?><?><?> <?> <?><?><?><?><?><?><?> clone(2) <?>
       <?><?><?><?><?><?> CLONE_NEWNS; <?> <?><?><?><?> <?><?><?><?><?><?>
       <?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?> <?><?><?><?><?><?>
       clone(2); <?><?><?> <?><?> <?><?><?><?><?><?><?> unshare(2) <?>
       <?><?><?><?><?><?> CLONE_NEWNS; <?> <?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>,
       <?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>, <?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> (<?><?>
       <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?>) <?> <?><?><?><?><?><?><?><?>.

       For further details on mount namespaces, see mount_namespaces(7).

   Parental relationship between mounts
       Each mount has a parent mount.  The overall parental relationship of
       all mounts defines the single directory hierarchy seen by the processes
       within a mount namespace.

       The parent of a new mount is defined when the mount is created.  In the
       usual case, the parent of a new mount is the mount of the filesystem
       containing the directory or file at which the new mount is attached.
       In the case where a new mount is stacked on top of an existing mount,
       the parent of the new mount is the previous mount that was stacked at
       that location.

       The parental relationship between mounts can be discovered via the
       /proc/pid/mountinfo file (see below).

   /proc/pid/mounts and /proc/pid/mountinfo
       The Linux-specific /proc/pid/mounts file exposes the list of mounts in
       the mount namespace of the process with the specified ID.  The
       /proc/pid/mountinfo file exposes even more information about mounts,
       including the propagation type and mount ID information that makes it
       possible to discover the parental relationship between mounts.  See
       proc(5)  and mount_namespaces(7)  for details of this file.

<?><?>. <?><?><?><?><?>
       mountpoint(1), chroot(2), ioctl_iflags(2), mount_setattr(2),
       pivot_root(2), umount(2), mount_namespaces(7), path_resolution(7),
       findmnt(8), lsblk(8), mount(8), umount(8)

<?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?> <?><?><?>
       <?><?><?><?><?><?> aereiae <aereiae@gmail.com>, Alexey
       <a.chepugov@gmail.com>, Azamat Hackimov <azamat.hackimov@gmail.com>,
       Dmitriy S. Seregin <dseregin@59.ru>, Dmitry Bolkhovskikh
       <d20052005@yandex.ru>, ITriskTI <ITriskTI@gmail.com>, Max Is
       <ismax799@gmail.com>, Yuri Kozlov <yuray@komyakino.ru>, <?><?><?><?>
       <?><?><?><?><?><?> <pavia00@gmail.com> <?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <maljanow@outlook.com>

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       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?>;
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> GNU
       <?><?><?><?><?><?> 3 <https://www.gnu.org/licenses/gpl-3.0.html>
       <?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?>, <?><?><?><?><?>
       <?><?><?><?><?><?> <?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>. <?><?> <?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>.

       <?><?><?><?> <?><?> <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?> <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?> <man-pages-ru-talks@lists.sourceforge.net>.

Linux man-pages 6.06  31 <?><?><?><?><?><?><?> 2023 <?>.              mount(2)