Some troubles with grub with buster point release 10.8

[Stefan Möding]

Hi!

Just starting to play with this...

Too me it looks like the "grep" in

mbrdevices=$($ROOTCMD udevadm info -r --query=symlink $BOOT_DEVICE | grep -Po '/dev/disk/by-id/ata\S+')

will emit an exit status 1 if it does not find a match.  This is
propagated as the script error status (due to the trap).  Maybe an
additional "| cat" at the end could be used to gobble the status of
"grep"...

-- 
Stefan