https://bugzilla.novell.com/show_bug.cgi?id=838777 https://bugzilla.novell.com/show_bug.cgi?id=838777#c0 Summary: mdadm 3.3 does not scan IMSM RAID metadata anymore and makes the system unbootable with RAID on / Classification: openSUSE Product: openSUSE Factory Version: 13.1 Milestone 4 Platform: Other OS/Version: Other Status: NEW Severity: Critical Priority: P5 - None Component: Basesystem AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: lbeltrame@kde.org QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux) KHTML/4.11.60 (like Gecko) Konqueror/4.11 Since the update to mdadm 3.3 in Factory, in case a fake RAID is defined through Intel Matrix Storage Manager integrated in a motherboard, when booting mdadm will not scan the metadata (it will just start the metadata "device") thus the array will not be assembled and in case / is on the RAID, it will not boot (/dev/root search will time out). To boot, one would do: 1. Drop in the emergency shell 2. run mdadm -I /dev/md127 [or whatever is the device node with the metadata] 3. run mdadm --assemble --scan (partitions are populated) 4. exit the shell (and the system boots) For reference, here is /proc/mdstat: mdadm 3.2: cat /proc/mdstat Personalities : [raid1] [raid0] [raid10] [raid6] [raid5] [raid4] md126 : active raid1 sda[1] sdb[0] 488383488 blocks super external:/md127/0 [2/2] [UU] [===============>.....] resync = 76.8% (375204032/488383620) finish=47.2min speed=39888K/sec md127 : inactive sda[1](S) sdb[0](S) 5928 blocks super external:imsm mdadm 3.3 in emergency shell (copied from memory): md127 : inactive sda[1](S) sdb[0](S) 5928 blocks super external:imsm The kernel only reports that "/dev/md/imsm0 has been started" at boot. The issue is in mdadm 3.3 as reverting to 3.2 fixes the issue. Reproducible: Always Steps to Reproduce: 1. Boot system with mdadm 3.3 and Intel RAID on / Actual Results: Root device is not found (timeout + emergency shell). Expected Results: Root device should be found and mounted. System specifications: Asus Sabertooth Z77 motherboard with Intel Z77 chipset IMSM set as fake RAID over two 500 Gb drives, holding / and /home. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.