I have a somewhat bizzare problem at the moment with my Debian-system (mainly testing).
I used to have a root-partition on lvm that was formatted as ext3.
I now booted a live-system and converted the ext3 into ext4 (via tune2fs…) and also did a fsck.ext4. In the live-system I can mount the partition as ext4.
Then I changed the entry in /etc/fstab from ext3 to ext4 and rebooted my Debian.
The problem is that the partition (even though it says ext4 in /etc/fstab) seems still be to mounted as ext3 – at least that is what mount says.
When I try to determine the filesystem-type I get inconsistent results:
fsck -N reports ext4:
sudo fsck -N /dev/mapper/hed-root fsck from util-linux 2.20.1 [/sbin/fsck.ext4 (1) -- /] fsck.ext4 /dev/mapper/hed-root
but blkid says ext3
sudo blkid -o value -s TYPE /dev/mapper/hed-root ext3
As I said the filesystem resides in a lvm-volume. I changed nothing there.
What can I do to resolve this?
Based on your filesystem features output, you didn’t actually convert your filesystem to ext4.
To resolve the issue, convert the filesystem to ext4. Reboot your live CD and run the appropriate commands:
tune2fs -O extents,uninit_bg,dir_index /dev/mapper/hed-root e2fsck -fDC0 /dev/mapper/hed-root
(Note that the ext4 driver is capable of mounting ext2 and ext3 filesystems, which is why your system is currently usable.)
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