On 03/02/2012 04:00 PM, Jonathan Vomacka wrote:
> On 3/2/2012 2:46 PM, Bowie Bailey wrote:
>> On 3/2/2012 1:01 PM, m.roth@xxxxxxxxx wrote:
>>> Digimer wrote:
>>> <snip>
>>>> Boot from a live CD using the CentOS 6.2 install media. Once booted:
>>>>
>>>> <bash># grub
>>>> <grub> root (hd0,0)
>>>> <grub> setup (hd0)
>>>> <grub> root (hd1,0)
>>>> <grub> setup (hd1)
>>>> <grub> root (hd2,0)
>>>> <grub> setup (hd2)
>>>> <grub> quit
>>>> <bash># reboot
>>>>
>>>> This assumes that grub sees the drives at '0, 1 and 2' and the boot
>>>> partition is the first on each drive. If it is, when you type 'root
>>>> (hdX,0)' it should report that a file system was found. The 'setup
>>>> (hdX)' will tell grub to write the MBR to the specified disk.
>>> THANK YOU! I could have used that once or twice, and had no idea that grub
>>> could create a std. MBR.
>>
>> When I set up a RAID 1, I do it like this:
>>
>> device (hd0) /dev/sda
>> root (hd0,0)
>> setup (hd0)
>> device (hd0) /dev/sdb
>> root (hd0,0)
>> setup (hd0)
>> device (hd0) /dev/sdc
>> root (hd0,0)
>> setup (hd0)
>>
>> This way, all the drives are set up as if they are hd0. This way, any
>> of them will boot normally as a stand-alone drive.
>>
>
> Bowie, in terms of RAID 10, each drive technically cant be standalone
> right? The drives are striped and mirrored.
10 (one-zero) == a mirror of two stripped arrays. You can lose up to two
drives, so long as they are both from the same strip set.
As I understand it though, I thought that /boot could only exist on RAID
1 vanilla.
--
Digimer
E-Mail: digimer@xxxxxxxxxxx
Papers and Projects: https://alteeve.com
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