From a3a743ecb2a96ade123b1237716bd489625b7825 Mon Sep 17 00:00:00 2001
From: Henning Heinold <henning@itconsulting-heinold.de>
Date: Tue, 26 Aug 2014 18:06:36 +0200
Subject: [PATCH 1/2] initramfs: set baudrate for grub from cmdline

* take the baudrate for the grub serial console setting
  from the kernel-cmdline which the system was booted from

* better parsing of the options which the install-script
  gets from init

* Video Mode, VGA mode are not used right now and make it
  empty right now.
---
 .../initrdscripts/files/init-install.sh       | 37 ++++++++++++++++---
 1 file changed, 31 insertions(+), 6 deletions(-)

diff --git a/recipes-core/initrdscripts/files/init-install.sh b/recipes-core/initrdscripts/files/init-install.sh
index 0a02368..2399a24 100644
--- a/recipes-core/initrdscripts/files/init-install.sh
+++ b/recipes-core/initrdscripts/files/init-install.sh
@@ -9,9 +9,32 @@ PATH=/sbin:/bin:/usr/sbin:/usr/bin
 # We want a 1 Gig partition on the cf
 partition_size=1000
 
+# Parse original arguments coming from the kernel cmdline.
+# Then shift the first two arguments which contains
+# partition information.
+dev_name=$1
+shift
+image_name=$1
+shift
+
+kernel_cmdline_console=""
+kernel_cmdline_video_mode=""
+kernel_cmdline_vga_mode=""
+
+while [ "$1" != "" ]; do
+
+    echo "$1" | grep -q "console="
+    success_console=$?
+    if [ $success_console -eq 0 ]; then
+        kernel_cmdline_console=$1
+    fi
+    shift
+
+done
+
 # Get a list of hard drives
 hdnamelist=""
-live_dev_name=${1%%/*}
+live_dev_name=${dev_name%%/*}
 
 echo "Searching for hard drives ..."
 
@@ -120,7 +143,7 @@ mkdir /tgt_root
 mkdir -p /boot
 
 echo "Copying rootfs files..."
-dd if=/media/$1/$2 of=$rootfs bs=1024
+dd if=/media/$dev_name/$image_name of=$rootfs bs=1024
 
 # Handling of the target root partition
 mount $rootfs /tgt_root
@@ -139,11 +162,13 @@ echo "Preparing boot partition..."
 GRUBCFG="/boot/grub/grub.cfg"
 mkdir -p $(dirname $GRUBCFG)
 
+baudrate=`echo $kernel_cmdline_console | cut -f 2 -d ',' | cut -f 1 -d 'n'`
+
 cat > $GRUBCFG << EOF
 default=0
 timeout=1
 
-serial --unit=0 --speed=38400
+serial --unit=0 --speed=$baudrate
 terminal --timeout=2 serial
 
 terminal_input --append  serial
@@ -155,9 +180,9 @@ if [ -f /etc/grub.d/40_custom ] ; then
 
     cat /etc/grub.d/40_custom >> $GRUBCFG
     sed -i "s@__ROOTFS__@$rootfs $rootwait@g" $GRUBCFG
-    sed -i "s/__VIDEO_MODE__/$3/g" $GRUBCFG
-    sed -i "s/__VGA_MODE__/$4/g" $GRUBCFG
-    sed -i "s/__CONSOLE__/$5/g" $GRUBCFG
+    sed -i "s/__VIDEO_MODE__/$kernel_cmdline_video_mode/g" $GRUBCFG
+    sed -i "s/__VGA_MODE__/$kernel_cmdline_vga_mode/g" $GRUBCFG
+    sed -i "s/__CONSOLE__/$kernel_cmdline_console/g" $GRUBCFG
     sed -i "s/quiet/net.ifnames=0 quiet/g" $GRUBCFG
     sed -i "s/rw/ro/g" $GRUBCFG
     sed -i "/#/d" $GRUBCFG

From 7a09426da5f120ec64fbd31c01707d5f8b2f9b04 Mon Sep 17 00:00:00 2001
From: Henning Heinold <henning@itconsulting-heinold.de>
Date: Tue, 26 Aug 2014 19:57:53 +0200
Subject: [PATCH 2/2] initramfs: restore configuration if available

The error case of the backup not properly restoring has not
been tested.

Fixes: SYS#525
---
 .../initrdscripts/files/init-install.sh       | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/recipes-core/initrdscripts/files/init-install.sh b/recipes-core/initrdscripts/files/init-install.sh
index 2399a24..4b8919b 100644
--- a/recipes-core/initrdscripts/files/init-install.sh
+++ b/recipes-core/initrdscripts/files/init-install.sh
@@ -200,7 +200,28 @@ umount /tgt_root
 echo "Resizing partition"
 e2fsck -f $rootfs || true
 resize2fs $rootfs
+sync
 
+echo "Re-mounting the root and trying to apply backup."
+mount $rootfs /tgt_root
+
+echo "Finding backupfiles"
+backupfile=`find /media/$dev_name/ -name "sysmocom-backup*.tar" | head -n1`
+if [ -n "$backupfile" ]; then
+    if [ ! -r "$backupfile" ]; then
+        echo "configurations-file $backupfile it is not readable"
+    else
+        echo "restoring $backupfile"
+        backupfile_basename=`basename $backupfile`
+        cp $backupfile /tgt_root
+        chroot /tgt_root /usr/sbin/sysmocom-restore $backupfile_basename
+        rm /tgt_root/$backupfile_basename
+    fi
+else
+    echo "No configurations-file found"
+fi
+
+umount /tgt_root
 sync
 
 echo "Remove your installation media, and press ENTER"