FormatEXT4

#!/sbin/sh
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
#
/tmp/busybox mount /dev/block/mmcblk0p1 /sdcard
exec >> /sdcard/install.log 2>&1
date
echo ***************Log Start***************
/tmp/busybox mount -o remount,rw rootfs /
# unmount partitions
echo "*********Begining Formatting and Tuning, Journaling option chosen = " $1"."
echo ***************Unmounting Drives***************
#/tmp/busybox umount -a -t ext4
#/tmp/busybox umount -a -t rfs
cat /etc/mtab
#/tmp/busybox umount -l /system
#/tmp/busybox umount -l /cache
#/tmp/busybox umount -l /data
echo ***************Drives Unmounted***************
# system partition
echo ***************Begin System Partition***************
/tmp/busybox umount -l /system
cat /proc/mounts  > /etc/mtab
#/tmp/fsck.ext4 -fy /dev/block/stl9
if [ "$1" == "EXT4Journal" ]
then
echo System Journaled
/tmp/mkfs.ext4 -O ^resize_inode,^ext_attr,^huge_file -L SYSTEM -J size=16 -b 4096 -m 0 -F -N 7500 /dev/block/stl9
/tmp/tune2fs.ext4 -O +has_journal -c 30 -i 30d -m 0 -o journal_data_writeback /dev/block/stl9
else
echo System Not Journaled
/tmp/mkfs.ext4 -O ^has_journal,^resize_inode,^ext_attr,^huge_file -L SYSTEM -b 4096 -m 0 -F -N 7500 /dev/block/stl9
/tmp/tune2fs.ext4 -c 2 -i 2d -m 0 -o journal_data_writeback /dev/block/stl9
fi
/tmp/fsck.ext4 -Dfy /dev/block/stl9
/tmp/busybox mount -t ext4 /dev/block/stl9 /system
echo ***************System Partition Done***************
# Cache partition
echo ***************Begin Cache Partition***************
/tmp/busybox umount -l /cache
cat /proc/mounts  > /etc/mtab
#/tmp/fsck.ext4 -fy /dev/block/stl11
if [ "$1" == "EXT4Journal" ]
then
echo Cache Journaled
/tmp/mkfs.ext4 -O ^resize_inode,^ext_attr,^huge_file -L CACHE -J size=4 -b 4096 -m 0 -F -N 800 /dev/block/stl11
/tmp/tune2fs.ext4 -O +has_journal -c 100 -i 100d -m 0 -o journal_data_writeback /dev/block/stl11
else
echo Cache Not Journaled
/tmp/mkfs.ext4 -O ^has_journal,^resize_inode,^ext_attr,^huge_file -L CACHE -b 4096 -m 0 -F -N 800 /dev/block/stl11
/tmp/tune2fs.ext4 -c 100 -i 100d -m 0 -o journal_data_writeback /dev/block/stl11
fi
/tmp/fsck.ext4 -Dfy /dev/block/stl11
/tmp/busybox mount -t ext4 -o nosuid,nodev /dev/block/stl11 /cache
echo ***************Cache Partition Done***************
# Data partition
echo ***************Begin Data Partion***************
/tmp/busybox umount -l /data
cat /proc/mounts  > /etc/mtab
#/tmp/fsck.ext4 -fy /dev/block/stl10
if [ "$1" == "EXT4NoJournal" ]
then
echo Data Not Journaled
/tmp/mkfs.ext4 -O ^has_journal,^resize_inode,^ext_attr,^huge_file -L DATA -b 4096 -m 0 -F /dev/block/stl10
/tmp/tune2fs.ext4 -c 1 -i 1d -m 0 -o journal_data_writeback /dev/block/stl10
else
echo Data Journaled
/tmp/mkfs.ext4 -O ^resize_inode,^ext_attr,^huge_file -L DATA -J size=32 -b 4096 -m 0 -F /dev/block/stl10
/tmp/tune2fs.ext4 -O +has_journal -c 30 -i 30d -m 0 -o journal_data_writeback /dev/block/stl10
fi
/tmp/fsck.ext4 -Dfy /dev/block/stl10
/tmp/busybox mount -t ext4 -o nosuid,nodev /dev/block/stl10 /data
echo ***************Data Partion Done***************
echo ***************Finished Formatting and Tuning Partions***************
/tmp/busybox mount -o remount,ro rootfs /