From 9c2daa5d3aa1b98d5a005a78a7a2d332e7422034 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Fri, 27 Jun 2014 12:02:14 +0200

Subject: [PATCH] Add "rd.cmdline=ask" kernel command line parameter

prompts the user for additional kernel command line parameters

(cherry picked from commit f232f6623d2b761c1538192c97e13842e5037adc)

Conflicts:

	dracut.cmdline.7.asc

	modules.d/98systemd/dracut-cmdline.sh

	modules.d/99base/init.sh

---

 dracut.cmdline.7.asc                           |  4 ++++

 modules.d/98systemd/dracut-cmdline-ask.service | 33 ++++++++++++++++++++++++++

 modules.d/98systemd/dracut-cmdline-ask.sh      | 20 ++++++++++++++++

 modules.d/98systemd/module-setup.sh            |  2 ++

 modules.d/99base/init.sh                       |  8 +++++++

 5 files changed, 67 insertions(+)

 create mode 100644 modules.d/98systemd/dracut-cmdline-ask.service

 create mode 100755 modules.d/98systemd/dracut-cmdline-ask.sh

diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc

index 10550ee..24bf449 100644

--- a/dracut.cmdline.7.asc

+++ b/dracut.cmdline.7.asc

@@ -81,6 +81,10 @@ rootfstype=ext3

     enable autoassembly of special devices like cryptoLUKS, dmraid, mdraid or

     lvm. Default is off as of dracut version >= 024.

+

+**rd.cmdline=ask**::

+    prompts the user for additional kernel command line parameters

+

 **rd.fstab=0**::

     do not honor special mount options for the root filesystem found in

     _/etc/fstab_ of the real root.

diff --git a/modules.d/98systemd/dracut-cmdline-ask.service b/modules.d/98systemd/dracut-cmdline-ask.service

new file mode 100644

index 0000000..9993671

--- /dev/null

+++ b/modules.d/98systemd/dracut-cmdline-ask.service

@@ -0,0 +1,33 @@

+#  This file is part of systemd.

+#

+#  systemd is free software; you can redistribute it and/or modify it

+#  under the terms of the GNU Lesser General Public License as published by

+#  the Free Software Foundation; either version 2.1 of the License, or

+#  (at your option) any later version.

+

+# See systemd.special(7) for details

+

+[Unit]

+Description=dracut ask for additional cmdline parameters

+DefaultDependencies=no

+Before=dracut-cmdline.service

+After=systemd-journald.socket

+Wants=systemd-journald.socket

+ConditionPathExists=/etc/initrd-release

+ConditionKernelCommandLine=rd.cmdline=ask

+

+[Service]

+Environment=DRACUT_SYSTEMD=1

+Environment=NEWROOT=/sysroot

+Type=oneshot

+ExecStart=-/bin/dracut-cmdline-ask

+StandardInput=tty

+StandardOutput=inherit

+StandardError=inherit

+RemainAfterExit=yes

+KillMode=process

+IgnoreSIGPIPE=no

+

+# Bash ignores SIGTERM, so we send SIGHUP instead, to ensure that bash

+# terminates cleanly.

+KillSignal=SIGHUP

diff --git a/modules.d/98systemd/dracut-cmdline-ask.sh b/modules.d/98systemd/dracut-cmdline-ask.sh

new file mode 100755

index 0000000..024d60e

--- /dev/null

+++ b/modules.d/98systemd/dracut-cmdline-ask.sh

@@ -0,0 +1,20 @@

+#!/bin/bash

+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-

+# ex: ts=8 sw=4 sts=4 et filetype=sh

+

+sleep 0.5

+echo

+sleep 0.5

+echo

+sleep 0.5

+echo

+echo

+echo

+echo

+echo "Enter additional kernel command line parameter (end with ctrl-d or .)"

+while read -e -p "> " line; do

+    [[ "$line" == "." ]] && break

+    [[ "$line" ]] && printf -- "%s\n" "$line" >> /etc/cmdline.d/99-cmdline-ask.conf

+done

+

+exit 0

diff --git a/modules.d/98systemd/module-setup.sh b/modules.d/98systemd/module-setup.sh

index 0de9d61..015597f 100755

--- a/modules.d/98systemd/module-setup.sh

+++ b/modules.d/98systemd/module-setup.sh

@@ -183,6 +183,7 @@ install() {

     ln_r "${systemdsystemunitdir}/initrd.target" "${systemdsystemunitdir}/default.target"

     inst_script "$moddir/dracut-cmdline.sh" /bin/dracut-cmdline

+    inst_script "$moddir/dracut-cmdline-ask.sh" /bin/dracut-cmdline-ask

     inst_script "$moddir/dracut-pre-udev.sh" /bin/dracut-pre-udev

     inst_script "$moddir/dracut-pre-trigger.sh" /bin/dracut-pre-trigger

     inst_script "$moddir/dracut-initqueue.sh" /bin/dracut-initqueue

@@ -212,6 +213,7 @@ install() {

     mkdir -p "${initdir}/$systemdsystemunitdir/initrd.target.wants"

     for i in \

         dracut-cmdline.service \

+        dracut-cmdline-ask.service \

         dracut-initqueue.service \

         dracut-mount.service \

         dracut-pre-mount.service \

diff --git a/modules.d/99base/init.sh b/modules.d/99base/init.sh

index ae73fd2..9ee3e9d 100755

--- a/modules.d/99base/init.sh

+++ b/modules.d/99base/init.sh

@@ -115,6 +115,14 @@ fi

 source_conf /etc/conf.d

+if getarg "rd.cmdline=ask"; then

+    echo "Enter additional kernel command line parameter (end with ctrl-d or .)"

+    while read -p "> " line; do

+        [ "$line" = "." ] && break

+        echo "$line" >> /etc/cmdline.d/99-cmdline-ask.conf

+    done

+fi

+

 # run scriptlets to parse the command line

 make_trace_mem "hook cmdline" '1+:mem' '1+:iomem' '3+:slab'

 getarg 'rd.break=cmdline' -d 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"