Over the weekend I worked on moving my current SuSE 9.1 installation from a single IDE drive to 2 RAID'd SCSI drives using software RAID. I hooked up my SCSI drives with the IDE drive still attached, created the following in YaST: /dev/sda1 47M Linux Native /dev/sda2 517.6M Linux RAID /dev/sda3 33.6GB Linux RAID /dev/sdb1 47M Linux Native /dev/sdb2 517.6M Linux RAID /dev/sdb3 33.6GB Linux RAID /dev/md0 1GB MD RAID (From sda2 and sdb2) /dev/md1 67.3GB MD RAID (From sda3 and sdb3) md0 is formated swap, md1 is formated reiser. sda1 and sdb1 were intended to be /boot, but not RAID'd. sd[a,b]1 were formated ext2. I copied over all of / to md1, and all of /boot to sd[a,b]1, changed the fstab on the md1 drive, changed Grubs menu.lst and installed Grub on hd1 (as the IDE drive was still there, I assume hd1 was the first SCSI drive). Just as a temporary step, I rebooted and had Grub come up from the IDE drive. I edited the boot string for the SCSI drive, and told it to boot. It started to boot, but stopped at (from memory, sorry) Waiting for device /dev/md1 to appear: So I'm thinking my SCSI card kernel module or the RAID module (or both) aren't loaded by this point. To further add to that, I've found that after a reboot trying to mount md1 from the command line doesn't always work the first time. Anyone know what's going on? Thanks, Chris
On Tue, 2005-02-22 at 10:01, Chris Cameron wrote:
Over the weekend I worked on moving my current SuSE 9.1 installation from a single IDE drive to 2 RAID'd SCSI drives using software RAID.
I hooked up my SCSI drives with the IDE drive still attached, created the following in YaST:
<snip>
I copied over all of / to md1, and all of /boot to sd[a,b]1, changed the fstab on the md1 drive, changed Grubs menu.lst and installed Grub on hd1 (as the IDE drive was still there, I assume hd1 was the first SCSI drive). Just as a temporary step, I rebooted and had Grub come up from the IDE drive. I edited the boot string for the SCSI drive, and told it to boot. It started to boot, but stopped at (from memory, sorry)
Waiting for device /dev/md1 to appear:
So I'm thinking my SCSI card kernel module or the RAID module (or both) aren't loaded by this point. To further add to that, I've found that after a reboot trying to mount md1 from the command line doesn't always work the first time.
Anyone know what's going on?
Thanks, Chris
Did you include the controller module in the "INITRD_MODULES=" parameter in /etc/sysconfig/kernel and run mkinitrd? -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998 * Only reply to the list please* "The day Microsoft makes something that doesn't suck is probably the day they start making vacuum cleaners." -Ernst Jan Plugge
Very late follow up, but just for anyone who is interested. The way I fixed my problem was to change the root device to /dev/md0 from md1. Don't know why it didn't like md1, but switched those two, and I'm currently typing this from my computer with a software raid / partition. If anyone else is doing something similar, something I didn't cover below that is important, you have to remake your initrd with mkinitrd. Thanks to Ken Schneider for his help on this. Chris On February 22, 2005 08:01 am, Chris Cameron wrote:
Over the weekend I worked on moving my current SuSE 9.1 installation from a single IDE drive to 2 RAID'd SCSI drives using software RAID.
I hooked up my SCSI drives with the IDE drive still attached, created the following in YaST:
/dev/sda1 47M Linux Native /dev/sda2 517.6M Linux RAID /dev/sda3 33.6GB Linux RAID /dev/sdb1 47M Linux Native /dev/sdb2 517.6M Linux RAID /dev/sdb3 33.6GB Linux RAID
/dev/md0 1GB MD RAID (From sda2 and sdb2) /dev/md1 67.3GB MD RAID (From sda3 and sdb3)
md0 is formated swap, md1 is formated reiser. sda1 and sdb1 were intended to be /boot, but not RAID'd. sd[a,b]1 were formated ext2.
I copied over all of / to md1, and all of /boot to sd[a,b]1, changed the fstab on the md1 drive, changed Grubs menu.lst and installed Grub on hd1 (as the IDE drive was still there, I assume hd1 was the first SCSI drive). Just as a temporary step, I rebooted and had Grub come up from the IDE drive. I edited the boot string for the SCSI drive, and told it to boot. It started to boot, but stopped at (from memory, sorry)
Waiting for device /dev/md1 to appear:
So I'm thinking my SCSI card kernel module or the RAID module (or both) aren't loaded by this point. To further add to that, I've found that after a reboot trying to mount md1 from the command line doesn't always work the first time.
Anyone know what's going on?
Thanks, Chris
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Chris Cameron -
Ken Schneider