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Re: bin/54591: lvm drops volumes on initial start
The following reply was made to PR bin/54591; it has been noted by GNATS.
From: neitzel%hackett.marshlabs.gaertner.de@localhost (Martin Neitzel)
Subject: Re: bin/54591: lvm drops volumes on initial start
Date: Wed, 2 Oct 2019 16:32:24 +0200 (CEST)
Thanks for picking this up so quickly, Michael!
> >During NetBSD installation, I defined a disklabel(8) partition /dev/rwd0e to
> >hold the space for an LVM physical volume:
> Rare, but possible.
Yes, i have such setups successfully running since the vinum(4) demise
with NetBSD versions up to and including NetBSD-8.1/8-stable as of now.
> For starting LVM manually:
> - load the dm module with dmsetup
> - lvm pvscan -> searches devices for LVM labels
> - lvm vgscan --mknodes -> searches PV devices for volume groups and volumes
> - lvm vgchange -a y -> generates the /dev/mapper links
> Again, with one or more -v you get debug information.
In the meantime, I also created an /etc/lvm/lvm.conf with
level = 9
verbose = 3
and get plenty of source-related messages logged. I can see where
the messages for the missing volume start to deviate from the
messages for the successful volumes while doing the "vgchange -a
y" step above.
I should be able to $CC -g the the lvm tools and give a much more
detailed analysis within the next two weeks.
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