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From 83fc438139c49ffae330d5caeece1e52bcb1d18e Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Fri, 5 Aug 2022 10:44:26 +0200
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Subject: [PATCH] convert_linux: remove LVM2 "devices file"
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A recent feature of LVM2 is the "devices file"
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<https://man7.org/linux/man-pages/man8/lvmdevices.8.html>. It speeds up
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LVM2 PV discovery on a normal system, but an old devices file in a
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converted domain (with different hardware) can prevent the assembly of
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volume groups.
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In particular, when converting a physical system to a guest with virt-p2v,
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the original system will have used "sys_wwid"-type identifiers in the LVM2
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devices file, and those are guaranteed not to match any virtio-blk disks
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in the output domain.
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We've seen a similar issue in the past under RHBZ#1164853, so just extend
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the same scrubbing with the new pathname.
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2112801
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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Message-Id: <20220805084426.9200-1-lersek@redhat.com>
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Acked-by: Richard W.M. Jones <rjones@redhat.com>
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(cherry picked from commit 8e4b732e8b4343c169c658338da53fb0ede7e512)
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---
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convert/convert_linux.ml | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/convert/convert_linux.ml b/convert/convert_linux.ml
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index a66ff1e4..2aaa438e 100644
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--- a/convert/convert_linux.ml
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+++ b/convert/convert_linux.ml
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@@ -1402,11 +1402,11 @@ let convert (g : G.guestfs) source inspect keep_serial_console _ =
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* device names. blkid will rebuild these on demand.
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*
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* Delete the LVM cache since it will contain references to the
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- * old devices (RHBZ#1164853).
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+ * old devices (RHBZ#1164853, RHBZ#2112801).
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*)
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List.iter g#rm_f [
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"/etc/blkid/blkid.tab"; "/etc/blkid.tab";
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- "/etc/lvm/cache/.cache"
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+ "/etc/lvm/cache/.cache"; "/etc/lvm/devices/system.devices"
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];
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in
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