NVME-LOG-BOOT-PAR(1) NVMe Manual NVME-LOG-BOOT-PAR(1)

nvme-log-boot-part - Retrieves a Boot Partition log page from an NVMe device

nvme [<global-options>] log boot-part <device> [--lsp=<field> | -s <field>]
                        [--output-file=<file> | -f <file>]

Retrieves an Boot Partition log page from an NVMe device and provides the returned structure.

The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).

On success, the returned log structure will be in raw binary format only with --output-file option which is mandatory.

-s <field>, --lsp=<field>

The log specified field of LID.

-f <file>, --output-file=<file>

File name to which raw binary data will be saved to.

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.

•Retrieve Boot Partition data to boot_part_log.bin 
# nvme log boot-part /dev/nvme0 --output-file=boot_part_log.bin

Part of the nvme-user suite

09/07/2026 NVMe