Re: [gentoo-user] boot problems

[J. Roeleveld]

On Sunday, May 04, 2014 01:15:51 PM Neil Bothwick wrote:
> On Sat, 03 May 2014 20:40:47 +0200, J. Roeleveld wrote:
> > > * SystemRescueCD and the Gentoo minimal installation CD both start
> > > any raid arrays they find and apply their own names to them. It is
> > > then impossible, or so I thought, to resume an interrupted
> > > installation process. Of course, all I had to do was "mdadm
> > > --stop /dev/md127" etc.
> >
> > Yes, I noticed that annoyance myself. I would much prefer it to default
> > to more logical names.
>
> ISTR that's because of the hostname stored in the RAID, so when you plug
> the array into another computer, it doesn't clobber any existing array
> names. I had this happen when transplanting an array to a new system.
> There is a sequence of commands to reset the names but it was a while ago
> and all I remember is that the sequence started with "man lvm".

Actually, the steps are:
1) invalidate the RAID
2) create a new, broken, RAID using the invalidatd disk
3) copy data to new RAID
4) delete md127
5) add other disk from md127 to md1

Or something to that effect.
A "rename" option or even a "I_KNOW_WHAT_I_AM_DOING_JUST_KEEP_THE_SAME_NAME" 
option, which would be enabled by default when booting with sysresccd, would 
be nice.

--
Joost