Le 06/05/2017 à 20:06, Joe a écrit :
Thanks, I'll have a go at that later. I'm currently bogged down in a completely unrelated grub issue on a different (wheezy) machine: I have an ext4 filesystem which passes fsck fine, to which I can write, but which grub2 cannot see. The same grub rescue> prompt, ls can see the partitions, but grub2 cannot read the root one, says 'unknown filesystem'. An attempt to reload after a chroot assures me that grub-probe cannot read it, either. The grub-probe installed in the current Knoppix sees it as 'ext2', which may be as much as I can hope for, but wheezy's grub-probe cannot see it at all, presumably ext4 is too recent for it.
Ext4 was already the default filesystem type in Wheezy, and I have happily used Wheezy and GRUB (1.99) on ext4 without any issue.
GRUB just report any ext2/3/4 filesystem as ext2.
