[linux-lvm] pvversion failure

[James Pattinson]

Hi Heinz

Fixed it now - it was a different flaw I'm afraid!

Line 96 of pvversion takes the first 33 lines of the output of pvdisplay
to determine the PE something or other, and on my system with 15 LVs, you
get no PE info in the first 33 lines!

Changing this value to 36 solved the problem. However I suggest a value of
300 or so to allow for the maximum number of 256 LVs. Was this a dirty
hack? :-)

Cheers

James

 On Wed, 25 Jul 2001, Heinz J . Mauelshagen wrote:

> On Wed, Jul 25, 2001 at 05:11:42PM +0100, James Pattinson wrote:
> > Oops - hate to reply to my own message, but I just noticed the -1 in my
> > pvversion command. To clarify, I get the same behaviour if I use -2 as
> > well.
>
> Yes, I guessed that already.
>
> My guess is, that the long device pathes trigger a regex bug we didn't hit
> during our tests.
>
> Could you switch devfs of and retry pvversion in order
> to work around that assumed flaw?
>
> >
> > James
> >
> > On Wed, 25 Jul 2001, James Pattinson wrote:
> >
> > > Hi
> > >
> > > Trying to upgrade from beta7 to beta8. I have 2 PVs, neither of which are
> > > empty, that belong to a single VG, vg00.
> > >
> > > When trying to upgrade the PVs to version 2, I get:
> > >
> > > ./pvversion -1 /dev/ide/host2/bus0/target0/lun0/part1
> > > pvversion -- created dummy LV "/dev/vg00/pvversionpart19519" on empty PV
> > > "/dev/ide/host2/bus0/target0/lun0/part1"
> > > pvversion -- ERROR: pv_display() failed again
> > > pvversion -- giving up on "/dev/ide/host2/bus0/target0/lun0/part1"
> > >
> > > [root at greebo tools]# lvmdiskscan | grep LVM
> > > lvmdiskscan -- /dev/ide/host2/bus0/target0/lun0/part1  [      16.02 GB]
> > > Primary  LVM partition [0x8E]
> > > lvmdiskscan -- /dev/ide/host2/bus1/target0/lun0/part1  [      16.02 GB]
> > > Primary  LVM partition [0x8E]
> > > lvmdiskscan -- 2 LVM physical volume partitions
> > > [root at greebo tools]#
> > >
> > > It seems the pvversion program thinks my PV is empty, and tries to create
> > > a dummy LV on it. But of course it's not empty.
> > >
> > > I created my PVs, VG and LVs using beta7 kernel and tools not too long
> > > ago. Im using devfs as you can see.
> > >
> > > Any ideas?
> > >
> > > James
> > >
> > > _______________________________________________
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> > > linux-lvm at sistina.com
> > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
> > >
> >
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>
>