RAID Munging Question

Tue Apr 9 09:27:50 EDT 2002

Let me know if you figure out how to do /boot & /

I believe there's some lilo funkery required.  Next chance I have,
I'll give it another go at home.  I've got to get ready for my next
road trip to the North Shore Computer Society on Thurs.

Hmmmm... let's see. No time to work on it at home.  Awe hell, I'll work on it
in my lab today :-)  I'll post my results later this afternoon....

Kent Borg wrote:
> So I did my RAID 0->1 conversion last night and I think it worked.
> 
> My recipe turned out to be a little off: I needed an extra step (4.9)
> "# raidstop /dev/md5"; step 5 needed an extra flag "# mkraid -f
> /dev/md5" to force deletion of previous undesired volume; step 8, 
> "# mount /home" didn't work because I no longer had a "/home" label on
> that volume so I did "# mount /dev/md5 /home" and added step 15
> "tune2fs -L /home /dev/md5" so my fstab will work on reboot; and
> finally, I wanted to go to bed so I didn't wait for the resync to
> happen (mkraid itself finished very quickly) and instead did 
> "# telinit 3".
> 
> It seemed to work.  <whew>
> 
> 
> Thanks for the help,
> 
> -kb, the Kent whose /home partition should now be twice as reliable as
> normal as opposed to yesterday's condition of being half as reliable
> as normal.
> 
> 
> On Fri, Apr 05, 2002 at 12:26:23PM -0500, Kent Borg wrote:
> > On Fri, Apr 05, 2002 at 12:19:07PM -0500, I wrote:
> > > Here is my current best guess:
> > > 
> > >   1. Reboot single user (so little will being going on)
> > > 
> > >   2. Tar up /home and park it in another partition--luckily I do have
> > >      the room,
> > > 
> > >   3. Edit /etc/raidtab so /dev/md5 line that currently reads
> > >      "raid-level 0" will read "raid-level 1",
> > > 
> > >   4. "# unmount /home"
> > > 
> > >   5. "# mkraid /dev/md5",
> > > 
> > >   6. "# mkfs /dev/md5",
> > > 
> > >   7. Wait for mkfs to finish,
> > > 
> > >   8. "# mount /dev/md5 /home",
> > > 
> > >   9. See if df sees right size disk,
> > > 
> > >  10. Disconnect internet connection (don't want any new e-mail yet),
> > 
> > Think I should add:
> > 
> >  10-1/2.  Wait for mkraid's mirroring to finish
> > 
> > >  11. Reboot regularly, things working?,
> > > 
> > >  12. Plug in internet connection.
> > 
> > 
> > -kb
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