Description of problem: I have tried to upgrade a FC3 machine to FC5t2 - the anaconda can correctly find my root partition (/dev/md0, which is RAID 1 sda1+sdb1), but fails when trying to mount other filesystems - the FS which fails to mount is /var, which is in /etc/fstab set up as /dev/md6, which in turn is RAID 0 from two RAID-1 volumes - /dev/md2 (sde1+sdf1) and /dev/md3 (sdg1+sdh1). Anaconda does not seem to detect this RAID 1+0 setup correctly. When I switch to the second VC before selecting upgrade, and assemble the /dev/md6 by hand with the following commands, the upgrade then continues correctly: mdadm --assemble /dev/md2 /dev/sde1 /dev/sdf1 mdadm --assemble /dev/md3 /dev/sdg1 /dev/sdh1 mdadm --assemble /dev/md6 /dev/md2 /dev/md3 Additional info: I am doing a FTP install from diskboot.img on my USB flash disk. The box in question is dual opteron 248, Tyan S2892 board.
We don't currently support raid on top of other raids. You probably want to look at RAID10