Sorry to but in on this one....

So, if both drives in a RAID1 config are in sync running mkraid --force
will not destroy the content ?.

Does anyone know if this would sort out a problem that I am having whereby
LILO only updates one of the two drives in a RAID1 config ?. I suspect
that I have a corrupt superblock and hope to rectify this by recreating
it.

Thanks in advance.

John



On Mon, 29 May 2000, Matthew Burke wrote:

> 
> Thanks a *LOT* guys, it works and i now have all my lovely data back :)
> 
> 
> 
> On Mon, 29 May 2000, Mike Black wrote:
> 
> > Not if you haven't changed the RAID config from your initial setup. (i.e.
> > havent' removed/added any drives).
> > I've done this a couple of times with no problem.
> > If you change the disk ordering in /etc/raidtab or have had to
> > raidhotremove/raidhotadd any disks THEN it will destroy your data.
> > 
> > ----- Original Message -----
> > From: "Matthew Burke" <[EMAIL PROTECTED]>
> > To: "James Manning" <[EMAIL PROTECTED]>
> > Cc: <[EMAIL PROTECTED]>
> > Sent: Monday, May 29, 2000 5:50 AM
> > Subject: Re: HELP!!! Broken raid0
> > 
> > 
> > 
> > 
> > On Mon, 29 May 2000, James Manning wrote:
> > 
> > > Sure makes it look like hdc3 has some major issues.  It has a partition
> > > type of fd, but invalid raid superblock.  Makes me wonder if e2fsck
> > > didn't get run on hdc3 itself and it "fixed" that last part (hope not
> > > since it may have done some real superblock damage).  hdc itself looks
> > > ok since hdc3 doesn't seem to have any problems, so I don't think it's
> > > an actual drive problem.  Unfortunately, since it appears that the raid
> > > superblock (at a minimum) is broken on hdc3, the only thing I can think
> > > to recommend is
> > >
> > >  - mkraid --force /dev/md1 (rewrites raid superblocks)
> > 
> > from the mkraid man page:
> > 
> >        Note that initializing RAID devices destroys  all  of  the
> >        data on the consituent devices.
> > 
> >        -f, --force
> >               Initialize the consituent  devices,  even  if  they
> >               appear to have data on them already.
> > 
> > isn't this just going to lose me everything?
> > 
> > 
> > 
> 

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