grub-fstest(1) on Linux
The text d4650c9ab7f0, as Debian 7 (Wheezy) shipped it.
debug tool for GRUB filesystem drivers
Flags it lists
-
--debug -
--diskcount -
--help -
--length -
--root -
--skip -
--usage -
--verbose -
--version -
-? -
-V -
-c -
-d -
-n -
-r -
-s -
-v