Bug#507653: installation report: partitioner shows warning: 'The kernel was unable to re-read the partition table on /dev/md0', ext3 format hangs
My setup: (sorry I'm new at this (Linux) so I'm typing this out manually)
sda -- 320GB SATA
sda1 512M raid container bootable
sda2 99% of rest raid container
sdb -- 320GB SATA
sdb1 512M raid container bootable
sdb2 99% of rest raid container
md0 RAID1 ext3 boot sda1 sdb1
md1 RAID10 lvm container sda2 sdb2
vg00 in md1
v00 8G swap
v01 12G xfs root
v02 40G xfs home
rest of space unused at the moment
At the point where the partitioner needs to format md0, I kept getting the warning "The kernel was unable to re-read the partition table on /dev/md0" and whether I chose back or continue, it would try to format with ext3 and hang. It's a 512MB volume, so it shouldn't take that long.
Thing is, I got this exact same setup to work earlier today, but I decided to start over after I messed up with grub2, trying to get a bootloader on sdb so the system can still boot if sda fails.
I found a solution: Do NOT select ext3 for md0. Choose xfs. Let it format, then go back and change it to ext3. It will format again, and should finish normally. I'm installing the rest of the system as I type this (on another pc).
Hope this helps.