http://bugzilla.opensuse.org/show_bug.cgi?id=1200744 Bug ID: 1200744 Summary: MD-RAID1 refuses to assemble while "mdadm -E" says the disks are fine (v1.2 superblock) Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.3 Hardware: x86-64 OS: Other Status: NEW Severity: Major Priority: P5 - None Component: Basesystem Assignee: screening-team-bugs@suse.de Reporter: Ulrich.Windl@rz.uni-regensburg.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I migrated a Xen PVM to VMware. The VM also had an MD-RAID1 using metadata version 1.2. I copied the blocks from the old disks to the new ones using dd via SSH. When examining the disks on the new VM using "mdadm -E /dev/sdc", it reports a "clean" state and a "correct" checksum. For the other disk as well. Using "mdadm -v -A /dev/md1" it found both members for md1 and the corresponding slots, but fails to assemble saying "Invalid argument". Looking in syslog I see the kernel complains "md: sdc does not have a valid v1.2 superblock, not importing!" My guess is that new new disks are a bit larger than the original ones, but still: Shouldn't "mdadm -E" complain if the kernel would not accept the disk? Or should the kernel accept what mdadm accepts? -- You are receiving this mail because: You are on the CC list for the bug.