47 lines
1.7 KiB
Diff
47 lines
1.7 KiB
Diff
From 5729ae8029f9b19438f210f3e3ead326cf252645 Mon Sep 17 00:00:00 2001
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From: Lukas Wunner <lukas@wunner.de>
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Date: Tue, 3 Feb 2015 19:32:55 +0100
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Subject: [PATCH] 90dm/dm-shutdown.sh: dmsetup remove_all -> dmsetup remove
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The function 99shutdown/shutdown.sh:_check_shutdown() assumes that
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shutdown scripts report success or failure via their return value.
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However, "dmsetup remove_all" always reports success, even if some
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of the device mappings could not be removed.
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I submitted a patch for dmsetup but the lvm2 folks rejected it,
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asserting that its behaviour is correct, that "remove_all" should
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only be used by developers and that the proper solution would be
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to invoke "dmsetup remove" on each device. This does report success
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or failure via the return value.
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Apart from fixing that issue, this commit also adds the dmsetup
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option "--noudevsync". Without it, dmsetup would hang after removal
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of a device while trying to communicate with systemd-udevd, which
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is no longer running at this shutdown stage.
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[harald: replaces backticks with $() ]
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---
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modules.d/90dm/dm-shutdown.sh | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/modules.d/90dm/dm-shutdown.sh b/modules.d/90dm/dm-shutdown.sh
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index dfdb48b..04c89be 100755
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--- a/modules.d/90dm/dm-shutdown.sh
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+++ b/modules.d/90dm/dm-shutdown.sh
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@@ -1,11 +1,12 @@
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#!/bin/sh
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_do_dm_shutdown() {
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- local ret
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+ local ret=0
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local final=$1
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info "Disassembling device-mapper devices"
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- dmsetup -v remove_all
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- ret=$?
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+ for dev in $(dmsetup info -c --noheadings -o name) ; do
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+ dmsetup -v --noudevsync remove "$dev" || ret=$?
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+ done
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if [ "x$final" != "x" ]; then
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info "dmsetup ls --tree"
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dmsetup ls --tree 2>&1 | vinfo
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