Re: [linux-lvm] undocumented strange LVM behaviour

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Hello,

thank you Heinz for responing.

I booted my machine and tried

cat /proc/partitions

and it shows:

major minor #blocks name

34 0 78177792 ide/host2/bus1/target0/lun0/disc
34 1 1536160 ide/host2/bus1/target0/lun0/part1
34 2 76641264 ide/host2/bus1/target0/lun0/part2
33 0 78177792 ide/host2/bus0/target0/lun0/disc
33 1 51376 ide/host2/bus0/target0/lun0/part1
33 2 1536192 ide/host2/bus0/target0/lun0/part2
33 3 9216144 ide/host2/bus0/target0/lun0/part3
33 4 67373712 ide/host2/bus0/target0/lun0/part4
3 64 197858 hdb

In my opionion the strange thing is, that after only a reboot everything stoped working, right?

bye

Daniel

Heinz J . Mauelshagen wrote:

On Wed, Nov 27, 2002 at 07:43:46PM +0100, Daniel Zeiss wrote:

>vgcfgrestore be an option to restore my lvm?


No, this looks like a strange /proc/partitions problem (LVM tries to retrieve
device pathes from there and obviously fails on that).

Does "cat /proc/partitions" show any strangenesses ?

Regards,
Heinz -- The LVM Guy --


>
>Daniel Zeiss wrote:
>
> > Hello,
> >
> > my lvm (2 partitions on 2 discs /dev/hde4 /devhdg2) on a Debian Woody
> > Linux (2.4.18-686) shows some strange behaviour:
> >
> > After rebooting my computer, vgscan found an inactive "vg01" to be my
> > volume group but vgchange -a y said:
> >
> > vgchange -- ERROR: can't get name(s) of physical volumes
> > vgchange -- Please check, if /proc is mounted
> >
> > my /proc is mounted and in /proc/lvm /global is says:
> >
> > Total: 0 VGs 0 PVs 0 LVs (LVs open)
> > Global: 152 bytes malloced IOP version 10 0:05:06 active
> >
> > I do _not_ use devfs, /dev is complete and working.
> >
> > My lvm are just my home dirs, so uncomming them in /etc/fstabs and
> > rebooting brings my system up with kde now problem and root can log in
> > and work (which it shouldnt do with kde, just testing).
> >
> > My / is on /dev/hde3, so it isnt a disc failure.
> >
> > the output of
> >
> > vgchange -a y -d
> >
> > is attached.
> >
> > What can I do to get my LVM up running _without_ dataloss?


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