On Wed, Jun 20, 2012 at 10:57 PM, m.roth@5-cent.us wrote:
Arun Khan wrote:
Reboot the system with disk1 removed, the kernel boots, the 'md' driver tries to bind sda. At this point the systems seems to hang for a few seconds and then 'dracut' reports that it cannot find /dev/md_dop1 (the root partition)
dracut Warning: No root device "block:/dev/md_d0p1" found
Console image pasted here http://imagebin.org/217229
At this point, I'm starting to wonder if the initrd.img has the drivers for software RAID. You *might* need to rebuild that.
Using 'dracut' I did create a new initramfs file per the instruction in the wiki.
Nonetheless, assuming that the md module is missing in the new initramfs, one would expect the boot to fail with /dev/sda and /dev/sdb both connected to the system. The fact the system boots in this case shows that the md driver is present.
See screenshot here http://imagebin.org/217246
In the "rdshell" environment I can see that /etc/mdadm.conf is defined but beyond this I don't know what to look for.
Changing the Partition Id for the RAID1 partitions to 'fd' does not help.
Any further suggestions and/or comments?
What devices are there in /dev/? /dev/sd? /dev/md?
/dev/md_d0 /dev/md/md-device-map
Please see screenshot http://imagebin.org/217263
-- Arun Khan