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

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

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

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.

-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.

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.

•Read configuration data block into config.bin file 
# nvme rpmb read-config /dev/nvme0 -f config.bin

Part of the nvme-user suite

09/07/2026 NVMe