Comment 4 for bug 1361842

The LSI option rom will not present a drive to the EFI BIOS without a raid
label on the disc. If the array is deleted then EFI will not boot off the
drive at all. As far as I can tell there is no fall back option rom that
provides simple AHCI services to EFI.

This is the problem, because the boot script is wrong the installer and so
forth has a very high probability to destroy the RAID label when it writes
a GPT partition label, which renders the system unbootable, and unless you
actually know about this quirk the only symptom is that the boot menu from
the BIOS has no option to boot from the hard drive.

On Mon, Oct 27, 2014 at 9:18 AM, Phillip Susi <email address hidden> wrote:

> You can just delete the raid array in the bios utility, or use dmraid -E
> to erase it.
>
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> https://bugs.launchpad.net/bugs/1361842
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> Title:
> dmraid does not start on boot for single disk RAID0
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