Package: grub-pc
Version: 1.96+20080724-5
When booting my server which has /boot and / on raid1 and also a
totally a separate raid6 device, grub errors out and drops to rescue
mode. I see:
Welcome to GRUB!
Error: Unsupported RAID level: 6
Entering rescue mode...
grub rescue>
>From there I just type:
grub rescue> insmod linux
grub rescue> normal
And the boot continues as I expect it should have done in the first
place. I guess grub should not panic if it just "sees" a raid6
device, but only if it is asked to use it.
This system has 12 disks. /dev/sdk and /dev/sdl are using the onboard
Intel SATA controller and are what the BIOS sees as the first and
second drive. /dev/sd[a-j] are attached to two 3ware sata controllers.
[EMAIL PROTECTED]:~$ mount
/dev/md1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/md0 on /boot type ext3 (rw)
[EMAIL PROTECTED]:~$ cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md5 : active raid6 sdj1[9] sdi1[8] sdh1[7] sdg1[6] sdf1[5] sde1[4] sdd1[3]
sdc1[2] sdb1[1] sda1[0]
7814079488 blocks level 6, 64k chunk, algorithm 2 [10/10] [UUUUUUUUUU]
bitmap: 0/233 pages [0KB], 2048KB chunk
md1 : active raid1 sdl2[1] sdk2[0]
19534976 blocks [2/2] [UU]
bitmap: 1/150 pages [4KB], 64KB chunk
md2 : active raid1 sdl3[1] sdk3[0]
271482368 blocks [2/2] [UU]
bitmap: 0/130 pages [0KB], 1024KB chunk
md3 : active raid1 sdl4[1] sdk4[0]
1919680 blocks [2/2] [UU]
bitmap: 0/235 pages [0KB], 4KB chunk
md0 : active raid1 sdl1[1] sdk1[0]
96256 blocks [2/2] [UU]
bitmap: 0/12 pages [0KB], 4KB chunk
unused devices: <none>
[EMAIL PROTECTED]:~$ cat /boot/grub/device.map
(hd0) /dev/sdk
(hd1) /dev/sdl
[EMAIL PROTECTED]:~$ uname -a
Linux hermes-new 2.6.26 #1 SMP Sat Jul 26 18:11:06 CST 2008 x86_64 GNU/Linux
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