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I attempted to install 11.04 on a Dell PowerEdge-R610 that has a LSI SAS1068E-based hardware RAID setup (I think). Installer finishes without a hitch, but upon reboot, it appears that Grub can't find the boot partition and drops to the busybox shell.

Here is the partition table on the RAID device.

Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000d08d6

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        6757    54272000   83  Linux
/dev/sda2            6757        8845    16765953    5  Extended
/dev/sda5            6757        8845    16765952   82  Linux swap / Solaris

And here is the Grub script as produced by the installer. The msdos stuff looks fishy to me. (Please note, this was typed by hand and may contain typos.)

setparams 'Ubuntu, with Linux 2.6.38-8-generic'

set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos1)'
search --no-floppy --fs-uuid --set=root 22f9995f-8060-4893-9b9a-bed1d2635384
linux /boot/vmlinux-2.6.38-8-generic root=UUID=22f9995f-8060-4893-9b9a-bed1d2635384 ro   quiet splash vt.handoff=7
initrd /boot/initrd.img-2.6.38-8-generic

Any thoughts on how to get this working?

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up vote 1 down vote accepted

After baning my head against this server for a few days, it turns out the magical incantation was simply to add "rootdelay=90" to the kernel command in the Grub menu. It simply wasn't waiting long enough for the RAID controller to initialize.

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