Got it; the other distro doesn't put the PReP partition on the RAID/md device itself -- it uses the (non-RAID) partition on /one/ of the underlying block devices.
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 931.5G 0 disk ├─sda1 8:1 0 7M 0 part ├─sda2 8:2 0 9.3G 0 part /boot ├─sda3 8:3 0 921.3G 0 part │ └─md127 9:127 0 921.1G 0 raid1 / ├─sda4 8:4 0 1K 0 part └─sda5 8:5 0 952M 0 part [SWAP] sdb 8:16 0 931.5G 0 disk └─sdb1 8:17 0 921.3G 0 part └─md127 9:127 0 921.1G 0 raid1 / -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1487365 Title: Ubuntu14.04 .3 RAID installation fails on firestone To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1487365/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
