create raid1 on a installed system

[martin f krafft]

also sprach Rashkae <ubuntu at tigershaunt.com> [2009.07.20.0355 +0200]:
> There is one huge gotcha with this process.
> 
> When you boot to md0 for the first time, the system will fail to detect
> the raid array and after a long wait, dump you to busybox shell.
> 
> This is because when you built the raid array from a working system, the
> array gets tagged with your system hostname.  When the system is booting
> from initrd, mdadm (the program that is responsible for detecting and
> assembling the array) by default will only assemble arrays that match
> the current hostname (which in initrd environment is blank).

Debian's mdadm handles this properly (by exporting the homehost to
the initramfs and passing it to mdadm -A explicitly), this seems
like a regression introduced by the Ubuntu patch.

-- 
martin | http://madduck.net/ | http://two.sentenc.es/
 
"without music, life would be a mistake."
                                                 - friedrich nietzsche
 
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