e umount $mount_point
-# i don't change the default subvolid, so the arg here is just being cautious
-e mount -o subvolid=0 $boot_disk$grub_extn $mount_point
+e mount $boot_disk$grub_extn $mount_point
e grub-editenv $mount_point/grubenv set last_boot=/boot_$distro
e grub-editenv $mount_point/grubenv set did_fai_check=true
e umount $mount_point