Re: Raid 5

[Dick Thomas <xpd259@gmail.com>]

About.me http://about.me/dick.thomas
Blog: www.xpd259.co.uk
G+:   www.google.com/profiles/xpd259
gpg key: C791809B


On 6 March 2013 18:47, Adam Wolfe <kadamwolfe@gmail.com> wrote:
> I had one h**l of a time doing this over the weekend.
>
> What finally worked for me was creating LOGICAL partitions on each drive and
> setting them as used for RAID volume devices.
> This gave me /dev/sda5, /dev/sdb5 etc etc.
> When grub did it's install, it added all the /dev/sda1 etc partitions and
> rebooted fine.
>
> When I tried primary partitions, grub would just fail and I'd have to
> restart the whole install process over.
>
> NOTE:  when booting from the install cd i had to [tab] the 'install' menu
> entry and add "dmraid=true".
> Then after the initial install, it would still fail to boot.
> Back to the install cd, choose 'rescue', [tab] and add 'dmraid=true' again.
> Then get thee to a shell and 'grub-install --recheck /dev/sdaX' for each
> partition.
>
>
>
>
> On 03/06/2013 01:37 PM, Dick Thomas wrote:
>>
>> What is the best way to setup a raid 5 array (4* 2TB drives)
>> should I make raid 5 for my system and /home
>> then raid 0 or 1 for the boot, or should I buy a 5th drive for
>> system/boot and install in the standard way?
>> as this is my 1st time on debian and not sure what would be best
>>
>>
>> Dick Thomas
>> About.me http://about.me/dick.thomas
>> Blog: www.xpd259.co.uk
>> G+:   www.google.com/profiles/xpd259
>> gpg key: C791809B
>>
>>
>
>
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I've tried installing from my "hardware" motherboard raid and that
just fails even with dmraid=true
atm i've got a
raid 0 /boot

raid 5 encrypted then /lvm
         /lvm/swap
         /lvm/root
        //var/log

but wasn't sure if that was the way to do it
or am I just confusing matters more :)