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.

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 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.
• 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.