grub-fstest(1) on Linux
The text 6ce3ad6b7ed2, as Debian 11 (Bullseye) shipped it.
debug tool for GRUB filesystem drivers
Flags it lists
-
--crypto -
--debug -
--diskcount -
--help -
--length -
--root -
--skip -
--uncompress -
--usage -
--verbose -
--version -
--zfs-key -
-? -
-C -
-K -
-V -
-c -
-d -
-n -
-r -
-s -
-u -
-v