[TriLUG] re-installing linux without losing data on RAID device

[prhodes at vdsinc.com]

> > I've had success doing this in the past by just backing up
/etc/raidtab,
> > reinstalling (not touching the data partitions, of course), and
> > copying raidtab back to the /etc directory.

> Cool, that's what I was planning to try.  I'll know in just a few minutes
> if it worked or not...


Ok, this works, sort of.  I re-installed linux, and I am still able to
access
the data on my RAID array.  However, Linux is not autodetecting the RAID
array
like it used to.  To access it now, I manually have to run raidstart from
the
command line, and then run mount to assign the mount point to /dev/md0.

I checked that the two partitions making up the RAID array have their
partition
type set to 0xFD, which is supposed to be the RAID autodetection type.  And
I know
the kernel I'm using supports auto-detection, since it worked before...

Anybody have any thoughts on what else I'm missing?  Should I just add
raidstart
to one of my init scripts, or is that not supposed to be necessary?

Thanks in advance...

Phillip Rhodes
Application Designer
Voice Data Solutions
919-571-4300 x225
prhodes at vdsinc.com

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