NVME-RPMB-WRITE-D(1)              NVMe Manual             NVME-RPMB-WRITE-D(1)

NAME
       nvme-rpmb-write-data - Write authenticated data to an RPMB target

SYNOPSIS
       nvme [<global-options>] rpmb write-data <device>
                               [--msgfile=<data-file> | -f <data-file>]
                               [--msg=<data> | -d <data>]
                               [--keyfile=<key-file> | -g <key-file>]
                               [--key=<key> | -k <key>]
                               [--address=<offset> | -o <offset>]
                               [--blocks=<512 byte sectors> | -b <sectors>]
                               [--target=<target-id> | -t <target-id>]

DESCRIPTION
       Supports authenticated data writing to the specified RPMB target, at
       the given sector offset, using the authentication key previously
       programmed with nvme rpmb program-key for that target.

       If the requested size is not within the total size supported by the
       target, the request fails without being sent to the device.

       The <device> parameter is mandatory and an NVMe character device (ex:
       /dev/nvme0) must be specified.

OPTIONS
       -t <target>, --target=<target>
           RPMB target id. This should be one of the supported RPMB targets as
           reported by nvme rpmb info. If nothing is given, the default of 0
           is used as the RPMB target.

       -o <offset>, --address=<offset>
           The address (in 512 byte sector offset from 0) to write to on the
           specified RPMB target.

       -b <sectors>, --blocks=<sectors>
           The size in 512 byte sectors to write to the specified RPMB target.

       -k <key>, --key=<key>, -g <key-file>, --keyfile=<key-file>
           Authentication key previously programmed with nvme rpmb program-key
           for the given target. The key can be specified on the command line
           using --key or -k, or read from a file using --keyfile or -g.

       -f <data-file>, --msgfile=<data-file>
           Name of the file the data to be written is read from.

       -d <data>, --msg=<data>
           Provides the data to be written directly on the command line,
           instead of reading it from a file.

GLOBAL OPTIONS
       The following options are defined at the top-level nvme command and are
       available to this subcommand:

       --dry-run
           Print the command that would be executed, but do not actually
           execute it.

       --no-ioctl-probing
           Disable probing for 64-bit IOCTL support.

       --no-retries
           Disable retry logic on transient errors.

       -o <fmt>, --output-format=<fmt>
           Set the reporting format to normal, tabular, 'json, or binary. Only
           one output format may be used at a time.

       --output-format-version=<version>
           Select the output format version. Version 1 uses the original field
           naming, while version 2 (default) provides more consistent and
           script-friendly field names.

       --timeout=<ms>
           Set the timeout for the command in milliseconds.

       -v, --verbose
           Increase the level of detail in the output. May be specified
           multiple times to further increase verbosity.

       These options can also be set as machine-wide defaults in
       nvme-cli.conf(5). A command-line flag always overrides the file.

EXAMPLES
       o   Write 200 blocks of (512 bytes) from input.bin onto target 0

               # nvme rpmb write-data /dev/nvme0 -t 0 -f input.bin -b 200 -k 'SecretKey'

NVME
       Part of the nvme-user suite

NVMe                              09/07/2026              NVME-RPMB-WRITE-D(1)