[Bug 1787769] [NEW] lvconvert stripes N of lv type raid5 results in dead filesystem

[Kundarsa]

Public bug reported:

reproducible issue.
After creating a new LV --type raid5, mkfs.ext4 and rsync the backup the filesystem will corrupt if i extend the lv using lvconvert --stripes N vg/lv. I monitor the cpy%sync with lvs and reboot well after 100%, but the fs wont mount and file -s /dev/dm-N says "data"

IMHO lvconvert --stripes N should refuse to run on --type raid5 until
resolved.

** Affects: lvm2 (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  lvconvert stripes N of lv type raid5 results in dead filesystem

Status in lvm2 package in Ubuntu:
  New

Bug description:
  reproducible issue.
  After creating a new LV --type raid5, mkfs.ext4 and rsync the backup the filesystem will corrupt if i extend the lv using lvconvert --stripes N vg/lv. I monitor the cpy%sync with lvs and reboot well after 100%, but the fs wont mount and file -s /dev/dm-N says "data"

  IMHO lvconvert --stripes N should refuse to run on --type raid5 until
  resolved.

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