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Re: [linux-lvm] safe to ru-run vgscan after mounting LV root?



Just a warning.  When I run vgscan on my system, it deletes my LV.  I
still don't know why.  There seems to be a terrible bug in vgscan.

Be careful if you run it.  You might have to do a vgcfgrestore to get your
LV's back.

I am using the beta6 code, so I don't have old code.

Jay

On Tue, 27 Mar 2001, Patrick Caulfield wrote:

> On Wed, Mar 28, 2001 at 02:14:21AM +1200, Mark van Walraven wrote:
> > Hi All,
> >
> > First, let me say how impressed I am with LVM.  I've just set up a 2.4.2
> > system with all filesystems in logical volumes, on an MD mirror.  I am
> > an experienced (i.e., "jaded") sysadmin, so please take my enthusiasm
> > as a truly singular occurrence.  Kudos to you.
> >
> > Now for my question: The system above runs vgscan (and vgchange) from an
> > initrd before mounting the root filesystem.  After that, the /etc/lvmtab*
> > files and directories need to be refreshed from the initrd.  Instead of
> > keeping the initrd hanging around until then, could vgscan simply be
> > run again to recreate /etc/lvmtab*, even though PVs and LVs are active?
>
> You can run vgscan as many times as you like. The main reason you wouldn't is
> the time it can take. But even that is small compared to the initialisation time
> of most SCSI cards so at bootup it shouldn't be a problem.
>
> patrick
>
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