Moving a server over to a RAID

[Tom H]

On Thu, Aug 19, 2010 at 2:38 PM, Rashkae <ubuntu at tigershaunt.com> wrote:
> Tom H wrote:
>
>> First, if you crete the array while booted into your install, the
>> superblock will have the correct hostname. Otherwise it will not
>> auto-assemble but you will be able to assemble it manually and update
>> the superblock with the new host info.
>
> This is where you misunderstood me.  If you create the the array in your
> own install, you will not have the correct hostname, because the default
> ubuntu initrd does not have a hostname, and your root file system will
> fail to auto-assemble on reboot.
>
> https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/330399

Because I wouldn't create an array without updating mdadm.conf, with
"mdadm --examine --scan >> /etc/mdadm/mdadm.conf".