v1.0

Initial release.

README

+Nandroid backups are usually performed in recovery mode. This means you would have to turn off your phone and reboot in recovery mode, which wastes a whole lot of time rebooting and a lot more time offline. For me, this has been a killer as I do regular nandroid backups. Having to reboot in recovery and finding missed calls, sms from my wife and friends is totally not accepatable for me. So, I set to develop an online nandroid backup tool which can do nandroid backups without switching off my phone.
+
+This tool backups /system , /data , /cache , .android_secure & sd-ext (from version 3) partitions to /sdcard/clockworkmod/backup directory. The date format used for folder name is the same used by CWM itself and nandroid backups created with this tool can safely be restored using CWM. If you would want to have a custom name for backup folder, pass an argument with the name to the script and it will use the name.
\ No newline at end of file

onandroid

+#!/sbin/sh
+
+# Usage instructions
+if [ $1 == "--help" ]; then
+	echo "Usage: 'onandroid desired_backup_name'"
+	echo "Note: A default backup name consisting of the current date and time is used if no backup name is provided."
+	exit 0
+fi
+
+echo "##########################################"
+echo "Online Nandroid Backup v1.0"
+echo "* A tool to perform a nandroid backup"
+echo "    without booting into recovery. It can"
+echo "    be run via adb shell or terminal"
+echo "    emulator in Android, thus allowing"
+echo "    you to do a live nandroid backup"
+echo "    within Android."
+echo "* This tool backups /system , /data , "
+echo "    /cache & .android_secure partitions."
+echo "* It is fully compatible with nandroid."
+echo "* Pass an argument to customize"
+echo "    backup name."
+echo "* Created by Ameer Dawood"
+echo "##########################################"
+echo ""
+
+# Start timer
+start_time=`date +%s`
+
+# Define constants
+def_name=`date -u +%Y-%m-%d.%H.%M.%S`
+path="/sdcard/clockworkmod/backup"
+
+# Check for required tools
+echo "`date +%T` Checking for required tools..."
+mkyaffs2image=`which mkyaffs2image`
+if [ "$mkyaffs2image" == "" ]; then
+	echo "`date +%T` Error: mkyaffs2image not found in path."
+	exit 1
+fi
+md5sum=`which md5sum`
+if [ "$md5sum" == "" ]; then
+	echo "`date +%T` Error: md5sum not found in path."
+	exit 1
+fi
+tar==`which tar`
+if [ "$tar" == "" ]; then
+	echo "`date +%T` Error: tar not found in path."
+	exit 1
+fi
+sleep 1
+echo "`date +%T` All required tools available."
+
+# Disk space check (in MB)
+safety=4
+echo "`date +%T` Checking disk space..."
+entry=`df -m /system | tail -1`
+u_system=`echo $entry | cut -d' ' -f3 | cut -d'%' -f1`
+entry=`df -m /data | tail -1`
+u_data=`echo $entry | cut -d' ' -f3 | cut -d'%' -f1`
+entry=`df -m /cache | tail -1`
+u_cache=`echo $entry | cut -d' ' -f3 | cut -d'%' -f1`
+entry=`df -ma /sdcard/.android_secure | tail -1`
+u_as=`echo $entry | cut -d' ' -f3 | cut -d'%' -f1`
+req_space=`expr $u_system + $u_data + $u_cache + $u_as + $safety`
+entry=`df -m /mnt/sdcard | tail -1`
+freespace=`echo $entry | cut -d' ' -f3 | cut -d'%' -f1`
+echo "`date +%T` SD Card Free Space: $freespace MB"
+echo "`date +%T` Required Space: $req_space MB"
+if [ $freespace -lt $req_space ]; then
+	echo "`date +%T` Not enough disk space! Exiting!"
+	exit 1
+else
+	echo "`date +%T` Necessary disk space available! Continuing..."
+fi
+
+# Change to backup directory
+cd $path
+
+# Deny file names with spaces
+if [ $# -gt 1 ]; then
+	echo "`date +%T` Filenames with spaces are not allowed!"
+	name=$def_name
+else
+	name="$1"
+fi
+
+# Grab backup name, if provided, or generate name with current date & time
+if [ $# == 0 ]; then
+	name=$def_name
+else
+	name="$1"
+fi
+
+# Create directory for backup
+echo "`date +%T` Creating backup directory..."
+if [ ! -d $name ]; then 
+	mkdir -p $name
+	if [ ! -d $name ]; then 
+		echo "`date +%T` Error: Cannot create $name"
+		exit 1
+	fi
+else
+	touch $name/.nandroidwritable
+	if [ ! -e $name/.nandroidwritable ]; then
+		echo "`date +%T` Error: Cannot write to $name"
+		exit 1
+	fi
+	rm $name/.nandroidwritable
+fi
+echo "`date +%T` Backing up to $path/$name"
+echo "`date +%T` Opening backup directory..."
+cd $name
+
+# Backup system
+echo -e "`date +%T` Backing up /system...\c"
+mkyaffs2image /system system.yaffs2.img &
+while [ `pidof mkyaffs2image` ]; do
+	echo -n "."
+	sleep 2
+done
+echo ""
+
+# Backup data
+echo -e "`date +%T` Backing up /data...\c"
+mkyaffs2image /data data.yaffs2.img &
+while [ `pidof mkyaffs2image` ]; do
+	echo -n "."
+	sleep 2
+done
+echo ""
+
+# Backup cache
+echo -e "`date +%T` Backing up /cache...\c"
+mkyaffs2image /cache cache.yaffs2.img &
+while [ `pidof mkyaffs2image` ]; do
+	echo -n "."
+	sleep 2
+done
+echo ""
+
+# Backup .android_secure
+echo -e "`date +%T` Backing up .android_secure...\c"
+cd /sdcard
+tar -cf $path/$name/.android_secure.vfat.tar .android_secure &
+while [ `pidof tar` ]; do
+	echo -n "."
+	sleep 2
+done
+echo ""
+cd $path/$name
+
+# Generate md5
+echo -e "`date +%T` Generating md5sum...\c"
+md5sum .android_secure.vfat.tar * > nandroid.md5 &
+while [ `pidof md5sum` ]; do
+	echo -n "."
+	sleep 2
+done
+echo ""
+
+# End timer
+end_time=`date +%s`
+elapsed=`expr $end_time - $start_time`
+
+# Announce
+echo "`date +%T` Online Nandroid Backup Completed in $elapsed seconds!"