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From 6ef3173e86c2be99b504f7c7a789dea5c0072f64 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Mon, 10 Jul 2017 13:28:40 +0200
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Subject: [PATCH] add 90multipath-hostonly module
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hardcoding the wwid of the drives in the initramfs causes problems
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when the drives are cloned to a system with the same hardware, but
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different disk wwid's
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https://bugzilla.redhat.com/show_bug.cgi?id=1457311
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Cherry-picked from: 5ce7cc7337a4c769b223152c083914f2052aa348
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Resolves: #1457311
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---
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.../90multipath-hostonly/module-setup.sh | 53 +++++++++++++++++++
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modules.d/90multipath/module-setup.sh | 26 ---------
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2 files changed, 53 insertions(+), 26 deletions(-)
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create mode 100755 modules.d/90multipath-hostonly/module-setup.sh
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diff --git a/modules.d/90multipath-hostonly/module-setup.sh b/modules.d/90multipath-hostonly/module-setup.sh
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new file mode 100755
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index 00000000..88839033
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--- /dev/null
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+++ b/modules.d/90multipath-hostonly/module-setup.sh
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@@ -0,0 +1,53 @@
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+#!/bin/bash
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+
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+# called by dracut
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+check() {
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+ return 255
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+}
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+
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+# called by dracut
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+depends() {
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+ echo multipath
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+ return 0
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+}
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+
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+# called by dracut
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+install() {
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+ local _f _allow
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+
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+ is_mpath() {
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+ local _dev=$1
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+ [ -e /sys/dev/block/$_dev/dm/uuid ] || return 1
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+ [[ $(cat /sys/dev/block/$_dev/dm/uuid) =~ mpath- ]] && return 0
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+ return 1
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+ }
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+
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+ majmin_to_mpath_dev() {
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+ local _dev
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+ for i in /dev/mapper/*; do
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+ [[ $i == /dev/mapper/control ]] && continue
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+ _dev=$(get_maj_min $i)
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+ if [ "$_dev" = "$1" ]; then
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+ echo $i
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+ return
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+ fi
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+ done
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+ }
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+
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+ add_hostonly_mpath_conf() {
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+ is_mpath $1 && {
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+ local _dev
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+
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+ _dev=$(majmin_to_mpath_dev $1)
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+ [ -z "$_dev" ] && return
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+ strstr "$_allow" "$_dev" && return
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+ _allow="$_allow --allow $_dev"
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+ }
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+ }
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+
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+ [[ $hostonly ]] && {
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+ for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
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+ [ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf
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+ }
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+}
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+
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diff --git a/modules.d/90multipath/module-setup.sh b/modules.d/90multipath/module-setup.sh
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index 3983b7b7..232ddcd8 100755
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--- a/modules.d/90multipath/module-setup.sh
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+++ b/modules.d/90multipath/module-setup.sh
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@@ -9,17 +9,6 @@ is_mpath() {
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return 1
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}
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-majmin_to_mpath_dev() {
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- local _dev
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- for i in /dev/mapper/*; do
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- [[ $i == /dev/mapper/control ]] && continue
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- _dev=$(get_maj_min $i)
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- if [ "$_dev" = "$1" ]; then
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- echo $i
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- return
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- fi
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- done
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-}
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check() {
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local _rootdev
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@@ -81,16 +70,6 @@ installkernel() {
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install() {
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local _f _allow
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- add_hostonly_mpath_conf() {
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- is_mpath $1 && {
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- local _dev
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-
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- _dev=$(majmin_to_mpath_dev $1)
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- [ -z "$_dev" ] && return
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- strstr "$_allow" "$_dev" && return
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- _allow="$_allow --allow $_dev"
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- }
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- }
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inst_multiple -o \
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dmsetup \
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@@ -105,11 +84,6 @@ install() {
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/etc/multipath.conf \
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/etc/multipath/*
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- [[ $hostonly ]] && {
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- for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
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- [ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf
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- }
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-
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inst $(command -v partx) /sbin/partx
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inst_libdir_file "libmultipath*" "multipath/*"
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