NVME-RPMB-READ-CO(1)              NVMe Manual             NVME-RPMB-READ-CO(1)

NAME
       nvme-rpmb-read-config - Read the RPMB device configuration block

SYNOPSIS
       nvme [<global-options>] rpmb read-config <device>
                               [--msgfile=<data-file> | -f <data-file>]

DESCRIPTION
       Reads the 512 byte device configuration block from RPMB target 0 of the
       NVMe device.

       If --msgfile is not given, a summary of the boot partition protection
       and lock state is printed to STDOUT instead of the raw configuration
       block.

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

OPTIONS
       -f <data-file>, --msgfile=<data-file>
           Name of the file the read configuration block is written to. If an
           existing file is given, data is appended to it. If not given, a
           summary is printed to STDOUT instead.

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   Read configuration data block into config.bin file

               # nvme rpmb read-config /dev/nvme0 -f config.bin

NVME
       Part of the nvme-user suite

NVMe                              09/07/2026              NVME-RPMB-READ-CO(1)