Description of problem: Using the FC6 install DVD in "linux rescue" mode, after successfully creating a raid 1 array with a missing device using mdadm command and a single disk, when you reboot and try to assemble the array, mdadm is unable to find a device and fails to assemble the array when using the FC6 DVD. The devices superblock can be printed using mdadm's examine command. The device is listed as state: active, checksum: correct. mdadm -A /dev/md0 /dev/hda1 mdadm: no devices found for /dev/md0 Booting off a FC4 or FC5 "linux rescue" cd and assembling the raid 1 array will work fine. Version-Release number of selected component (if applicable): mdadm - v2.5.4 - 13 October 2006 How reproducible: Every time. Steps to Reproduce: 1. Install a blank hard drive, using FC6 "linux rescue" to the command prompt 2. fdisk /dev/hda 3. n 4. p 5. 1 6. <return> 7. <return> 8. t 9. 1 10. fd 11. w 12. mdadm -C -v /dev/md0 -l 1 -n 2 missing /dev/hda1 13. Standard verification checks: mdadm -E /dev/hda1 mdadm -D /dev/md0 cat /proc/mdstat 14. exit (To Reboot) using FC6 "linux rescue" to the command prompt 15. mdadm -A /dev/md0 /dev/hda1 Results: mdadm: no devices found for /dev/md0 16. exit (To Boot) using FC4 or FC5 "linux rescue" to the command prompt 17. mdadm -A /dev/md0 /dev/hda1 Results: mdadm: /dev/md0 has been started with 1 drive (out of 2) Actual results: mdadm: no devices found for /dev/md0 Expected results: mdadm: /dev/md0 has been started with 1 drive (out of 2) Additional info:
I'm pushing an mdadm update that should solve this issue as far as mdadm goes (my testing indicates it does), but that doesn't get the update onto the rescue CD. I suspect that this bug can simply be closed as CANTFIX unless there are plans to spin new isos.