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From c9e0ee2c91de55a51d2afc6b0032f39f1f7f2ea8 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Tue, 16 May 2017 11:31:26 +0200
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Subject: [PATCH] mdraid: wait for rd.md.uuid specified devices to be assembled
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This patch uses wait_for_dev "/dev/disk/by-id/md-uuid-${uuid}" for the
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specified uuids.
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On timeout only md devices are force started which are specified by
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uuid, or all, if rd.auto was specified.
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Fixes https://github.com/dracutdevs/dracut/issues/227
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Cherry-picked from: 3cea0658
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Resolves: #1451660
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---
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modules.d/90mdraid/mdraid_start.sh | 74 +++++++++++++++++++++++++++-----------
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modules.d/90mdraid/parse-md.sh | 3 ++
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2 files changed, 57 insertions(+), 20 deletions(-)
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diff --git a/modules.d/90mdraid/mdraid_start.sh b/modules.d/90mdraid/mdraid_start.sh
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index 39998b03..5ebf09f4 100755
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--- a/modules.d/90mdraid/mdraid_start.sh
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+++ b/modules.d/90mdraid/mdraid_start.sh
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@@ -2,35 +2,69 @@
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# ex: ts=8 sw=4 sts=4 et filetype=sh
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-type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
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-_md_force_run() {
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+type getargs >/dev/null 2>&1 || . /lib/dracut-lib.sh
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+
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+_md_start() {
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local _udevinfo
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local _path_s
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local _path_d
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+ local _md="$1"
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+ local _offroot="$2"
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+
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+ _udevinfo="$(udevadm info --query=env --name="${_md}")"
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+ strstr "$_udevinfo" "MD_LEVEL=container" && continue
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+ strstr "$_udevinfo" "DEVTYPE=partition" && continue
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+
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+ _path_s="/sys/$(udevadm info -q path -n "${_md}")/md/array_state"
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+ [ ! -r "$_path_s" ] && continue
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+
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+ # inactive ?
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+ [ "$(cat "$_path_s")" != "inactive" ] && continue
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+
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+ mdadm $_offroot -R "${_md}" 2>&1 | vinfo
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+
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+ # still inactive ?
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+ [ "$(cat "$_path_s")" = "inactive" ] && continue
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+
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+ _path_d="${_path_s%/*}/degraded"
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+ [ ! -r "$_path_d" ] && continue
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+ > $hookdir/initqueue/work
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+}
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+
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+_md_force_run() {
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local _offroot
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- _offroot=$(strstr "$(mdadm --help-options 2>&1)" offroot && echo --offroot)
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- # try to force-run anything not running yet
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- for md in /dev/md[0-9_]*; do
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- [ -b "$md" ] || continue
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- _udevinfo="$(udevadm info --query=env --name="$md")"
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- strstr "$_udevinfo" "MD_LEVEL=container" && continue
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- strstr "$_udevinfo" "DEVTYPE=partition" && continue
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+ local _md
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+ local _UUID
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+ local _MD_UUID=$(getargs rd.md.uuid -d rd_MD_UUID=)
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+ [ -n "$_MD_UUID" ] || getargbool 0 rd.auto || return
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- _path_s="/sys/$(udevadm info -q path -n "$md")/md/array_state"
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- [ ! -r "$_path_s" ] && continue
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+ _offroot=$(strstr "$(mdadm --help-options 2>&1)" offroot && echo --offroot)
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- # inactive ?
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- [ "$(cat "$_path_s")" != "inactive" ] && continue
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+ if [ -n "$_MD_UUID" ]; then
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+ for _md in /dev/md[0-9_]*; do
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+ [ -b "$_md" ] || continue
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+ _UUID=$(
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+ /sbin/mdadm -D --export "$_md" \
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+ | while read line || [ -n "$line" ]; do
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+ str_starts "$line" "MD_UUID=" || continue
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+ printf "%s" "${line#MD_UUID=}"
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+ done
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+ )
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- mdadm $_offroot -R "$md" 2>&1 | vinfo
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+ [ -z "$_UUID" ] && continue
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- # still inactive ?
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- [ "$(cat "$_path_s")" = "inactive" ] && continue
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+ # check if we should handle this device
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+ strstr " $_MD_UUID " " $_UUID " || continue
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- _path_d="${_path_s%/*}/degraded"
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- [ ! -r "$_path_d" ] && continue
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- > $hookdir/initqueue/work
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- done
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+ _md_start "${_md}" "${_offroot}"
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+ done
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+ else
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+ # try to force-run anything not running yet
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+ for _md in /dev/md[0-9_]*; do
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+ [ -b "$_md" ] || continue
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+ _md_start "${_md}" "${_offroot}"
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+ done
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+ fi
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}
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_md_force_run
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diff --git a/modules.d/90mdraid/parse-md.sh b/modules.d/90mdraid/parse-md.sh
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index dd7bda25..ae76bac1 100755
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--- a/modules.d/90mdraid/parse-md.sh
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+++ b/modules.d/90mdraid/parse-md.sh
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@@ -26,6 +26,9 @@ else
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done < "${f}" > "${f}.new"
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mv "${f}.new" "$f"
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done
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+ for uuid in $MD_UUID; do
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+ wait_for_dev "/dev/disk/by-id/md-uuid-${uuid}"
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+ done
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fi
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fi
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