[2.2.11-ac1] Problems with md(raid)

Mike Galbraith mikeg at weiden.de
Sat Aug 14 20:08:40 CEST 1999


On Sat, 14 Aug 1999, Florian Lohoff wrote:

> On Sat, Aug 14, 1999 at 06:44:12AM +0200, Mike Galbraith wrote:
> > On Fri, 13 Aug 1999, Florian Lohoff wrote:
> > 
> > > On Thu, Aug 12, 1999 at 10:21:17AM +0200, German Eichberger wrote:
> > > > Hi,
> > > > 
> > > > my Software Raid 0 (md) doesn't work any more. mdadd (Debian, V 0.35) reports
> > > > i21pc2:~# mdadd -a
> > > > /dev/sdb2: No such device
> > > > /dev/sda3: No such device
> > > > 
> > > > with a mdtab like
> > > > /dev/md0        raid0,8k,0,7addcad1     /dev/sdb2 /dev/sda3 
> > > > 
> > > > In Kernel-version 2.9 everything worked fine.
> > > > 
> > > > What can I do to fix it? 
> > > 
> > > Same with 2.2.12pre1 ...
> > 
> > Hi,
> > 
> > I think you'll need to grab the latest raidtools and man mkraid.  Look
> > at the -o, --upgrade option.  The tools can be found at..
> > 	ftp.xx.kernel.org/pub/linux/daemons/raid/alpha/
> > 
> > With the new raid code, you set up an etc/raidtab and raidstart -a or
> > you can set your devices to automagically start with no intervention.
> 
> *Oergs* Ill try that - But i dont think it was a good idea for that change
> withing the 2.2 kernels ... Even it was completely undocumented as far
> as i can see. This might cause problems for a lot of people as
> i think the number of people using raid/md is increasingly rapidly.

If it eases your mind any, (if you'll take the word of a dedicated
kamikaze pilot) the raid code is very.. impact resistant.  It's also
much easier to use if you want to boot from an array.. no muss no fuss
(no initrd to screw up).  All around improvement.

	-Mike




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