rescue: Use systemd as initsystem.

This commit converts the rescue system to systemd rather than the legacy
sysvinit.

Besides being faster, one primary advantage of running systemd here is
that we can "boot" the system we're inspecting via systemd-nspawn
to properly test it.

Note: Bits that don't work:
 * nspawn
 * old dracut initqueue udev rules in /etc/ are not cleaned out (drop in
   support error?)
 * the gui may loop differently now

12 files changed, 74 insertions, 156 deletions

diff --git a/rescue/tree/etc/hostname b/rescue/tree/etc/hostname
new file mode 100644
index 000000000..344f71bc8
--- /dev/null
+++ b/rescue/tree/etc/hostname
@@ -0,0 +1 @@
+rescue
diff --git a/rescue/tree/etc/inittab b/rescue/tree/etc/inittab
deleted file mode 100644
index 6a30c0360..000000000
--- a/rescue/tree/etc/inittab
+++ /dev/null
@@ -1,16 +0,0 @@
-#Inittab for Mageia Rescue Disk
-#Author: Daouda Lo
-id:3:initdefault:
-
-si::sysinit:/etc/rc.sysinit
-re:6:wait:/etc/rc.reboot
-ca:12345:ctrlaltdel:/sbin/fakeshutdown
-
-1:12345:respawn:/sbin/mingetty --autologin root tty1
-2:23:respawn:/sbin/mingetty --autologin root tty2
-3:23:respawn:/sbin/mingetty --autologin root tty3
-4:23:respawn:/sbin/mingetty --autologin root tty4
-5:23:respawn:/sbin/mingetty --autologin root tty5
-6:23:respawn:/sbin/mingetty --autologin root tty6
-s0:2345:respawn:/sbin/agetty -h -t 60 ttyS0 9600 ansi
-#s1:2345:respawn:/sbin/agetty -h -t 60 ttyS1 115200,9600 linux
diff --git a/rescue/tree/etc/passwd b/rescue/tree/etc/passwd
index 3a1254f77..06677c9bf 100644
--- a/rescue/tree/etc/passwd
+++ b/rescue/tree/etc/passwd
@@ -1,3 +1 @@
 root::0:0::/root:/bin/bash
-shutdown:*:6:0:shutdown:/sbin:/sbin/shutdown
-halt:*:7:0:halt:/sbin:/sbin/halt
diff --git a/rescue/tree/etc/rc.reboot b/rescue/tree/etc/rc.reboot
deleted file mode 100755
index 0b67416f1..000000000
--- a/rescue/tree/etc/rc.reboot
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-sleep 1
-/sbin/killall5 -9
-
-umount -a -f -t noproc
-
-reboot -i -d
diff --git a/rescue/tree/etc/rc.sysinit b/rescue/tree/etc/rc.sysinit
deleted file mode 100755
index 551a4bc76..000000000
--- a/rescue/tree/etc/rc.sysinit
+++ /dev/null
@@ -1,87 +0,0 @@
-#!/bin/sh
-
-action() { echo $1; shift; $*; }
-DATE=`date +%Y%m%d-%Hh%M`
-
-export PATH=/bin:/sbin:/usr/bin:/usr/sbin
-
-echo -e "\t\t\tWelcome to \\033[1;36mMageia\\033[0;39m Linux"
-
-action "Remounting root filesystem in read-write mode" mount -n -o remount,rw /
-
-echo "Starting udev"
-mkdir /run
-mount -t tmpfs -o mode=0755,nosuid,nodev tmpfs /run
-mkdir -p /run/udev/rules.d
-export UDEVRULESD=/run/udev/rules.d
-
-/usr/lib/systemd/systemd-udevd --daemon --resolve-names=never
-udevadm trigger --type=subsystems --action=add
-udevadm trigger --type=devices --action=add
-
-ln -s /tmp/stage2/etc/* /etc 2>/dev/null
-# make passwd changable
-rm -f /etc/passwd
-cp /tmp/stage2/etc/passwd /etc/
-
-mkdir -p /mnt /var/log
-
->/etc/mtab
-mount -f /
-mount -f /proc
-
-# Set the hostname.
-action "Setting hostname rescue" hostname rescue
-echo rescue > /etc/HOSTNAME
-
-# Loads common modules ( no kerneld :( )
-echo "Loading additional modules..."
-load() { modprobe $* 2>/dev/null; }
-load ide-gd_mod
-load ide-cd_mod
-load floppy
-load af_packet
-load isofs
-load vfat
-load ext3
-load ext4
-load reiserfs
-load nilfs2
-load btrfs
-load xfs
-load jfs
-load loop
-load fuse
-load sd_mod
-load sr_mod
-
-action "Bringing up local loop interface" ifconfig lo up
-
-# disable the weird echoprt in cooked mode for user interaction:
-stty sane
-
-#LANGUAGE (filled by make_rescue_img)
-
-grep -q noauto /proc/cmdline || drvinst SERIAL_USB
-
-partimage_default_dir=/data/box
-partimage_dir=`perl -lne 'print $1 if /BOX=(\S+)/' /proc/cmdline`
-[ -z "$partimage_dir" ] && partimage_dir=$partimage_default_dir
-partimage_server=`perl -lne 'print $1 if /\bpserver=(\S+)/' /proc/cmdline`
-
-if grep -q save_all /proc/cmdline; then
-    partimage_whole_disk -s $partimage_server save_all $partimage_default_dir
-elif grep -q rest_all /proc/cmdline; then
-    if [ -d /tmp/image$partimage_dir ]; then
-        partimage_whole_disk rest_all /tmp/image$partimage_dir
-    else
-        partimage_whole_disk -s $partimage_server rest_all $partimage_dir
-    fi
-elif grep -q oem /proc/cmdline; then
-    /tmp/image/oem-rescue.sh
-elif grep -q restore /proc/cmdline; then
-    /usr/sbin/restore-image.sh
-elif ! grep -q expert /proc/cmdline; then
-    echo "starting GUI"
-    rescue-gui
-fi
diff --git a/rescue/tree/usr/bin/mageia-rescue b/rescue/tree/usr/bin/mageia-rescue
new file mode 100755
index 000000000..c9dd35661
--- /dev/null
+++ b/rescue/tree/usr/bin/mageia-rescue
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# disable the weird echoprt in cooked mode for user interaction:
+stty sane
+
+#LANGUAGE (filled by make_rescue_img)
+
+grep -q noauto /proc/cmdline || drvinst SERIAL_USB
+
+partimage_default_dir=/data/box
+partimage_dir=`perl -lne 'print $1 if /BOX=(\S+)/' /proc/cmdline`
+[ -z "$partimage_dir" ] && partimage_dir=$partimage_default_dir
+partimage_server=`perl -lne 'print $1 if /\bpserver=(\S+)/' /proc/cmdline`
+
+LOOP=""
+if grep -q save_all /proc/cmdline; then
+    partimage_whole_disk -s $partimage_server save_all $partimage_default_dir
+elif grep -q rest_all /proc/cmdline; then
+    if [ -d /tmp/image$partimage_dir ]; then
+        partimage_whole_disk rest_all /tmp/image$partimage_dir
+    else
+        partimage_whole_disk -s $partimage_server rest_all $partimage_dir
+    fi
+elif grep -q oem /proc/cmdline; then
+    /tmp/image/oem-rescue.sh
+elif grep -q restore /proc/cmdline; then
+    /usr/sbin/restore-image.sh
+elif ! grep -q expert /proc/cmdline; then
+    rescue-gui && LOOP=y
+fi
+
+while [ "$LOOP" ]; do
+    bash --login
+    rescue-gui
+done
diff --git a/rescue/tree/usr/lib/CVS. b/rescue/tree/usr/lib/CVS.
deleted file mode 100644
index e69de29bb..000000000
--- a/rescue/tree/usr/lib/CVS.
+++ /dev/null
diff --git a/rescue/tree/usr/lib/modules-load.d/mageia-rescue.conf b/rescue/tree/usr/lib/modules-load.d/mageia-rescue.conf
new file mode 100644
index 000000000..4111c0484
--- /dev/null
+++ b/rescue/tree/usr/lib/modules-load.d/mageia-rescue.conf
@@ -0,0 +1,17 @@
+ide-gd_mod
+ide-cd_mod
+floppy
+af_packet
+isofs
+vfat
+ext3
+ext4
+reiserfs
+nilfs2
+btrfs
+xfs
+jfs
+loop
+fuse
+sd_mod
+sr_mod
diff --git a/rescue/tree/usr/lib/systemd/system/rescue.service b/rescue/tree/usr/lib/systemd/system/rescue.service
new file mode 100644
index 000000000..336e06c22
--- /dev/null
+++ b/rescue/tree/usr/lib/systemd/system/rescue.service
@@ -0,0 +1,20 @@
+[Unit]
+Description=Mageia Rescue
+DefaultDependencies=no
+Conflicts=shutdown.target
+After=sysinit.target plymouth-start.service
+Before=shutdown.target
+
+[Service]
+Environment=HOME=/
+WorkingDirectory=/
+ExecStartPre=-/bin/plymouth quit
+ExecStart=/usr/bin/mageia-rescue
+ExecStopPost=-/usr/bin/systemctl --fail --no-block reboot
+Type=idle
+StandardInput=tty-force
+StandardOutput=inherit
+StandardError=inherit
+KillMode=process
+IgnoreSIGPIPE=no
+SendSIGHUP=yes
diff --git a/rescue/tree/usr/lib/systemd/system/systemd-udevd.service.d/dracut-rules.conf b/rescue/tree/usr/lib/systemd/system/systemd-udevd.service.d/dracut-rules.conf
new file mode 100644
index 000000000..b75df2e4e
--- /dev/null
+++ b/rescue/tree/usr/lib/systemd/system/systemd-udevd.service.d/dracut-rules.conf
@@ -0,0 +1 @@
+ExecStartPre=-/usr/bin/rm -f /etc/udev/rules.d/10-console.rules
diff --git a/rescue/tree/usr/sbin/fakeshutdown b/rescue/tree/usr/sbin/fakeshutdown
deleted file mode 100755
index 309f26c6c..000000000
--- a/rescue/tree/usr/sbin/fakeshutdown
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/perl
-
-#
-# Guillaume Cottenceau (gc)
-#
-# Copyright 2001 Mandrakesoft
-#
-# This software may be freely redistributed under the terms of the GNU
-# public license.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-
-# From MDK::Common:
-sub cat_ { open(my $F, '<', $_[0]) or die "cat of file $_[0] failed: $!\n"; my @l = <$F>; wantarray() ? @l : join '', @l }
-print "\n";
-
-
-#- try to umount as much as possible; uses Pixel's ultra optimized algo (let you guess how it works..)
-print "Umounting:\n";
-my @mounts = cat_('/proc/mounts');
-my $something_moved;
-do {
-    $something_moved = 0;
-    foreach (@mounts) {
-	my $where = (split)[1];
-	next if $where eq '/'; #- ouch! umounting the ramdisk on / always succeeds, and makes it becoming ro :-(
-	if (!system("umount $where 2>/dev/null")) {
-	    print "\t$where\n";
-	    $something_moved++;
-	}
-    }
-} while $something_moved;
-
-
-#- shutdown with init
-exec '/sbin/init', 6;
diff --git a/rescue/tree/usr/share/symlinks b/rescue/tree/usr/share/symlinks
deleted file mode 100644
index 091153872..000000000
--- a/rescue/tree/usr/share/symlinks
+++ /dev/null
@@ -1,4 +0,0 @@
-/boot
-/etc/fstab
-/etc/inittab
-/etc/rc.sysinit