grub: search
16.3.65 search
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-- Command: search [--file|--label|--fs-uuid] [--set [var]]
[--no-floppy] name
Search devices by file ('-f', '--file'), filesystem label ('-l',
'--label'), or filesystem UUID ('-u', '--fs-uuid').
If the '--set' option is used, the first device found is set as the
value of environment variable VAR. The default variable is 'root'.
The '--no-floppy' option prevents searching floppy devices, which
can be slow.
The 'search.file', 'search.fs_label', and 'search.fs_uuid' commands
are aliases for 'search --file', 'search --label', and 'search
--fs-uuid' respectively.