Hello again I finally got it working right now. The problem was mdadm using version 1.1 superblocks for the raid arrays. After forcing 1.0 superblocks it worked. I ran into some other problems after that, but I was able to handle them. The truth is, the wiki article is quite outdated. I am planning to update it, this weekend. Greetings Benedikt On Fri, 2010-04-02 at 00:57 +0200, b1 wrote:

Hello alltogether

I am desperatly trying to get raid working. Currently I have Arch installed on /dev/sda and I would like to make an RAID 1 Array out of it (using /dev/sdb). I followed the guide from the wiki

(http://wiki.archlinux.org/index.php/Convert_a_single_drive_system_to_RAID)

and now I am stuck when I try to install grub on my newly created raid1-drive (Chapter 3.6 in the Wiki). Everytime I do a find /grub/stage1, grub only discovers the stage1 file on /dev/sda, but not the one on my raid-drive (/dev/sdb). I have tried this normally and from within the chroot environment, with no success. When I try to install the bootloader manually via

root(hd1,4) setup(hd1)

grub gives the error 14: filesystem compatibility error. I have absolutly no idea, what I can do now. /dev/sdb5 is a ext2 filesystem with type "Linux Raid Autodetect", containig all the necessary files (mounting the partition and doing an ls shows the stage1 file).

Any help on what I should do now is greatly appreciated

Thanks

Benedikt