View Full Version : [ubuntu] Convert FakeRAID0 to md 0+1

April 2nd, 2009, 05:08 PM
Right now I have a Nvidia FakeRAID0 on my system with 2 drives and I just put 2 more drives in. Here is my setup:

/dev/sd[ab] = /dev/mapper/nvidia
/dev/mapper/nvidia1 = root
/dev/mapper/nvidia2 = swap
/dev/sd[cd]1 = /dev/md0 = root
/dev/sdc2 = /boot
/dev/sdd2 = swap

I copied my system over to /dev/md0 and can boot it as the root in fstab. I also copied /boot to /dev/sdc2 (is there a way to make it look for /grub/stage1 instead of /boot/grub/stage1?). I can't figure out what I need to do to grub to completely move off the FakeRAID so I can convert it to md1 and create md2 as the 0+1 array.

Please help

April 3rd, 2009, 06:57 PM
For anyone that has this problem, I figured it out. You need to create a new initrd image with mdadm in it. I modified mdadm.conf and ran updateinitramfs -c -k <kernel-version>. It booted my /dev/md0 and now I'm working on making my raid0+1. Don't forget to install grub to one of your hard drives that will be booting after you get rid of the fakeraid (grub-install /dev/sdc in my case).