unable to run e2fsck because of MMP

[Pca]

Hello

we have the rootfs in a lxc which has to be repaired.
the lxc has been stopped. then pct fsck ran but complained we have to do the fsck manually.
but when I do it complains with MMP like this :

: e2fsck /var/lib/vz/images/236/vm-236-disk-1.raw e2fsck 1.43.4 (31-Jan-2017) e2fsck: MMP: open with O_DIRECT failed while reading MMP block /var/lib/vz/images/236/vm-236-disk-1.raw: ********** WARNING: Filesystem still has errors **********

I am unable to clear the MMP flags :

root@pmx019 [~]: tune2fs -E clear_mmp /var/lib/vz/images/236/vm-236-disk-1.raw tune2fs 1.43.4 (31-Jan-2017) tune2fs: MMP: open with O_DIRECT failed while trying to open /var/lib/vz/images/236/vm-236-disk-1.raw Couldn't find valid filesystem superblock.

I can dump the FS :
: dumpe2fs /var/lib/vz/images/236/vm-236-disk-1.raw | head -65 dumpe2fs 1.43.4 (31-Jan-2017) Filesystem volume name: <none> Last mounted on: /mnt/vzsnap0 Filesystem UUID: d660b2de-6e08-4518-b0cb-74d8a9ddcae2 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent mmp flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean with errors Errors behavior: Continue Filesystem OS type: Linux Inode count: 6553600 Block count: 26214400 Reserved block count: 1310720 Free blocks: 12630127 Free inodes: 6495917 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 1017 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Mon Oct 3 11:05:24 2016 Last mount time: Mon Nov 15 19:18:37 2021 Last write time: Mon Nov 15 19:18:37 2021 Mount count: 75 Maximum mount count: -1 Last checked: Mon Oct 3 11:05:24 2016 Check interval: 0 (<none>) Lifetime writes: 6052 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: d3387f6b-0455-4b94-a98e-9e5d91000544 Journal backup: inode blocks FS Error count: 1144 First error time: Mon Nov 14 18:05:55 2016 First error function: htree_dirblock_to_tree First error line #: 987 First error inode #: 413563 First error block #: 1591759 Last error time: Sun Nov 14 01:24:15 2021 Last error function: ext4_lookup Last error line #: 1594 Last error inode #: 3803475 Last error block #: 0 MMP block number: 9255 MMP update interval: 5 Journal features: journal_incompat_revoke Journal size: 128M Journal length: 32768 Journal sequence: 0x0168b08c Journal start: 0 Group 0: (Blocks 0-32767) csum 0x8be7 [ITABLE_ZEROED] Primary superblock at 0, Group descriptors at 1-7


I found nothing which has the FS opened on the pmx.
storage is NFS.


is there a way to get rid of this situation ?

 

[NiPeGun]

pct shutdown 236
umount /var/lib/vz/images/236/vm-236-disk-1.raw
tune2fs -f -E clear_mmp /var/lib/vz/images/236/vm-236-disk-1.raw