I have Adaptec SCSI controller too on my old Dell PowerEdge 1550 server and the same problem with booting Intrepid. But it's Adaptec AIC-7899P U160/m (rev 01).
I have / partition on RAID1 and LVM. More details you can see reading my comment to bug LP #290153 (https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/290153). rootdelay=90 workaround works for me, although I don't need to wait 90 seconds. About 20-30 seconds is enough. -- Intrepid ubuntu server won't boot RAID1 https://bugs.launchpad.net/bugs/278176 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs