Cannot boot from software RAID with 2TB disks

[Christopher Chan]

On Thursday, May 13, 2010 05:09 AM, Tom H wrote:
> On Wed, May 12, 2010 at 3:21 PM, Brian McKee<brian.mckee at gmail.com>  wrote:
>> On Wed, May 12, 2010 at 7:55 AM, Matthias Brennwald
>> <matthias at brennwald.org>  wrote:
>>> On May 12, 2010, at 9:58 AM, ubuntu-users-request at lists.ubuntu.com wrote:
>>>>> What are my options? I'd appreciate any hints and help on how I can make this install work.
>>>> Only one. Destroy and redo it. 2 disks mirrored for system and the other
>>>> three a raid5 to be used however you like.
>>> I just tried to install Ubuntu 10.04 onto a RAID1 with two disks. Same result. I still believe my problem is related to this:
>>> https://bugs.launchpad.net/ubuntu/+source/partman-base/+bug/506670
>>
>> Said bug (and I *think* the instructions you pointed to earlier) both
>> refer to grub.
>> Lucid uses Grub2 doesn't it?  I suspect your instructions are out of date.
>
> I suspect that in the instructions on
> https://help.ubuntu.com/community/Installation/SoftwareRAID
> grub refers to grub2 because that is/was the 9.10 default for a clean
> install. Anyway, grub1 doesn't do RAID.

grub1 does not need to 'do' raid. grub1 has been used for mirrored /boot 
or / for a very long time now.


>
> The help should probably put the warning about RAID1 and /boot at the
> very top where it says:
> "How to create RAID using Ubuntu Software RAID. Including RAID 0, 1, 5 and 6."
>

Nope. There should be a separate page for installing on raid and that 
page should only deal with creating RAID devices. Confusion gone.