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?