Re: Problem with a RAID partitions

[Mailer Daemon <extremegroundmailer@gmail.com>]

On 29/11/14 03:46 PM, Renaud (Ron) OLGIATI wrote:
> My setup has eight RAID 1 partitions, md0 to md7, that should mount on /, sawp, /boot, /usr, /var, /clz, /home and /home/storage, the first seven on one pair of HDs, the last one on a second pair.
>
> The problem: At each boot time, /dev/md7 fails to start, I have to give the root passwd, comment out in /etc/fstab the line for /dev/md7 and reboot.
> Then, once started, uncomment /dev/md7, create anew the RAID pair, and mount it, whereupon it will spend the next couple hours syncing.
>
> Is there a way to tell the system to create md7 at the same time as the others ?
>
> Where should I look ?
>   
> Cheers,
>   
> Ron.
>
> PS Is there a way to make vi available in the rescue console ?
This is a strange setup to say the least. Did you consider creating only 
one RAID array per disk pair and partitioning them? Then you would only 
need to use a normal partitioning tool to resize partitions. As it is, 
you have to adjust the RAID partitions then the partitions on the RAID 
arrays to change the partition sizes.

However, I suspect the problem you are having is you didn't add the 
/dev/md7 to /etc/mdadm/mdadm.conf. As root try:

    mdadm --detail --scan >> /etc/mdadm/mdadm.conf

Afterward you need to:
    update-initramfs -u

in order to have the boot process correctly start the arrays.
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