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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.