Blame SOURCES/0448-add-rd.emergency-reboot-poweroff-halt.patch

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From cd6679c71665a53e2a55a204e7ea64b4a6d14030 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Fri, 22 Jul 2016 13:32:47 +0200
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Subject: [PATCH] add rd.emergency=[reboot|poweroff|halt]
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specifies what action to execute in case of a critical failure
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(cherry picked from commit c45e856a659a37537c107f7ef3e680abf60a96a5)
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https://bugzilla.redhat.com/show_bug.cgi?id=1359144
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---
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 dracut.cmdline.7.asc                    |  3 +++
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 modules.d/98systemd/dracut-emergency.sh | 12 +++++++++++-
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 modules.d/99base/dracut-lib.sh          | 24 ++++++++++++++++--------
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 3 files changed, 30 insertions(+), 9 deletions(-)
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diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc
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index 1cf962e6..1fb4f746 100644
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--- a/dracut.cmdline.7.asc
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+++ b/dracut.cmdline.7.asc
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@@ -108,6 +108,9 @@ resume=UUID=3f5ad593-4546-4a94-a374-bcfb68aa11f7
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 Misc
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 ~~~~
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+**rd.emergency=**__[reboot|poweroff|halt]__::
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+    specify, what action to execute in case of a critical failure.
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+
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 **rd.driver.blacklist=**__<drivername>__[,__<drivername>__,...]::
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     do not load kernel module <drivername>. This parameter can be specified
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     multiple times.
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diff --git a/modules.d/98systemd/dracut-emergency.sh b/modules.d/98systemd/dracut-emergency.sh
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index 5771dc5e..b3e8d087 100755
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--- a/modules.d/98systemd/dracut-emergency.sh
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+++ b/modules.d/98systemd/dracut-emergency.sh
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@@ -16,6 +16,7 @@ export _rdshell_name="dracut" action="Boot" hook="emergency"
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 source_hook "$hook"
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+_emergency_action=$(getarg rd.emergency)
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 if getargbool 1 rd.shell -d -y rdshell || getarg rd.break -d rdbreak; then
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     echo
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@@ -33,9 +34,18 @@ if getargbool 1 rd.shell -d -y rdshell || getarg rd.break -d rdbreak; then
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     exec sh -i -l
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 else
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     warn "$action has failed. To debug this issue add \"rd.shell rd.debug\" to the kernel command line."
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-    exit 1
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+    [ -z "$_emergency_action" ] && _emergency_action=halt
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 fi
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 /bin/rm -f -- /.console_lock
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+case "$_emergency_action" in
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+    reboot)
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+        reboot || exit 1;;
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+    poweroff)
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+        poweroff || exit 1;;
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+    halt)
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+        halt || exit 1;;
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+esac
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+
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 exit 0
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diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
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index 16bc74d4..10d9cbc5 100755
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--- a/modules.d/99base/dracut-lib.sh
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+++ b/modules.d/99base/dracut-lib.sh
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@@ -1068,6 +1068,8 @@ emergency_shell()
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     local _ctty
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     set +e
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     local _rdshell_name="dracut" action="Boot" hook="emergency"
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+    local _emergency_action
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+
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     if [ "$1" = "-n" ]; then
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         _rdshell_name=$2
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         shift 2
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@@ -1086,20 +1088,26 @@ emergency_shell()
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     source_hook "$hook"
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     echo
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+    _emergency_action=$(getarg rd.emergency)
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+    [ -z "$_emergency_action" ] \
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+        && [ -e /run/initramfs/.die ] \
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+        && _emergency_action=halt
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+
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     if getargbool 1 rd.shell -d -y rdshell || getarg rd.break -d rdbreak; then
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         _emergency_shell $_rdshell_name
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     else
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         warn "$action has failed. To debug this issue add \"rd.shell rd.debug\" to the kernel command line."
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-        # cause a kernel panic
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-        exit 1
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+        [ -z "$_emergency_action" ] && _emergency_action=halt
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     fi
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-    if [ -e /run/initramfs/.die ]; then
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-        if [ -n "$DRACUT_SYSTEMD" ]; then
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-            systemctl --no-block --force halt
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-        fi
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-        exit 1
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-    fi
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+    case "$_emergency_action" in
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+        reboot)
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+            reboot || exit 1;;
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+        poweroff)
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+            poweroff || exit 1;;
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+        halt)
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+            halt || exit 1;;
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+    esac
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 }
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 action_on_fail()