32 Invoking grub-probe
The program grub-probe probes device information for a given path
or device.
grub-probe --target=fs /boot/grub
grub-probe --target=drive --device /dev/sda1
grub-probe must be given a path or device as a non-option
argument, and also accepts the following options:
- --help
- Print a summary of the command-line options and exit.
- --version
- Print the version number of GRUB and exit.
- -d
- --device
- If this option is given, then the non-option argument is a system device
name (such as ‘/dev/sda1’), and grub-probe will print
information about that device. If it is not given, then the non-option
argument is a filesystem path (such as ‘/boot/grub’), and
grub-probe will print information about the device containing that
part of the filesystem.
- -m file
- --device-map=file
- Use file as the device map (see Device map) rather than the
default, usually ‘/boot/grub/device.map’.
- -t target
- --target=target
- Print information about the given path or device as defined by target.
The available targets and their meanings are:
- ‘fs’
- GRUB filesystem module.
- ‘fs_uuid’
- Filesystem Universally Unique Identifier (UUID).
- ‘fs_label’
- Filesystem label.
- ‘drive’
- GRUB device name.
- ‘device’
- System device name.
- ‘partmap’
- GRUB partition map module.
- ‘abstraction’
- GRUB abstraction module (e.g. ‘lvm’).
- ‘cryptodisk_uuid’
- Crypto device UUID.
- ‘msdos_parttype’
- MBR partition type code (two hexadecimal digits).
- ‘hints_string’
- A string of platform search hints suitable for passing to the
search command (see search).
- ‘bios_hints’
- Search hints for the PC BIOS platform.
- ‘ieee1275_hints’
- Search hints for the IEEE1275 platform.
- ‘baremetal_hints’
- Search hints for platforms where disks are addressed directly rather than
via firmware.
- ‘efi_hints’
- Search hints for the EFI platform.
- ‘arc_hints’
- Search hints for the ARC platform.
- ‘compatibility_hint’
- A guess at a reasonable GRUB drive name for this device, which may be
used as a fallback if the search command fails.
- ‘disk’
- System device name for the whole disk.
- -v
- --verbose
- Print verbose messages.