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RootandSEpatch.sh
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RootandSEpatch.sh
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#!/bin/sh
# Functions (part 1) (Create an unsquashed rootfs copy, add SuperSU & BusyBox, rename original rootfs to .bk, add symlink to R/W copy)
check_if_root() {
if [ $(id -u) != 0 ]; then
echo
echo "Error!"
echo "This script should be run as root."
exit 1
fi
}
check_writeable_rootfs() {
# TODO: Find a better way to do this, maybe.
if [ -e /.this ]; then
rm /.this
fi
touch "/.this" 2> /dev/null
if [ ! -e /.this ]; then
echo
echo "Error!"
echo "Unable to modify system!"
sleep 1
echo
echo
echo "In order to modify system files, the Chrome OS system partition needs to have been mounted writeable (i.e. rootfs verification disabled)."
sleep 1
echo
echo "You can disable rootfs verification by running the following command, then rebooting."
sleep 0.0001
echo
echo
echo
echo
echo "sudo /usr/share/vboot/bin/make_dev_ssd.sh --remove_rootfs_verification --partitions $(( $(rootdev -s | sed -r 's/.*(.)$/\1/') - 1))"
sleep 1
echo
echo
echo
echo
echo "Alternatively, run the command below, then follow the prompt."
echo "sudo /usr/share/vboot/bin/make_dev_ssd.sh --remove_rootfs_verification"
sleep 0.0001
echo
echo
echo "Please run the "remove_rootfs_verification" command now, then reboot and run this script again."
exit 1
fi
rm /.this
}
detect_architecture() {
ANDROID_ARCH="x86"
}
modify_cros_files() {
# Just changing two environment variables for Android in /etc/init here.
# Recent versions of CrOS have Android envs in arc-setup-env.
# Older versions had envs in the .conf files
mkdir -p /usr/local/Backup
if [ -e /etc/init/arc-setup-env ]; then
echo "Copying /etc/init/arc-setup-env to /usr/local/Backup"
sleep 1
echo "Setting 'export WRITABLE_MOUNT=1', 'export ANDROID_DEBUGGABLE=1' and (if variable exists) 'export SHARE_FONTS=0' in /etc/init/arc-setup-env"
sed -i 's/export WRITABLE_MOUNT=0/export WRITABLE_MOUNT=1/g' /etc/init/arc-setup-env 2>/dev/null
sed -i 's/export ANDROID_DEBUGGABLE=0/export ANDROID_DEBUGGABLE=1/g' /etc/init/arc-setup-env 2>/dev/null
sed -i 's/export SHARE_FONTS=1/export SHARE_FONTS=0/g' /etc/init/arc-setup-env 2>/dev/null
else
echo "Copying /etc/init/arc-setup.conf and /etc/init/arc-system-mount.conf to /usr/local/Backup"
sleep 0.2
echo "Setting 'env WRITABLE_MOUNT=1' in /etc/init/arc-setup.conf and /etc/init/arc-system-mount.conf"
cp -a /etc/init/arc-system-mount.conf /usr/local/Backup/arc-system-mount.conf.old
cp -a /etc/init/arc-system-mount.conf /etc/init/arc-system-mount.conf.old
cp -a /etc/init/arc-setup.conf /usr/local/Backup/arc-setup.conf.old
cp -a /etc/init/arc-setup.conf /etc/init/arc-setup.conf.old
sed -i 's/env WRITABLE_MOUNT=0/env WRITABLE_MOUNT=1/g' /etc/init/arc-setup.conf
sed -i 's/env WRITABLE_MOUNT=0/env WRITABLE_MOUNT=1/g' /etc/init/arc-system-mount.conf
echo "Setting 'env ANDROID_DEBUGGABLE=1' in arc-setup.conf"
sed -i 's/env ANDROID_DEBUGGABLE=0/env ANDROID_DEBUGGABLE=1/g' /etc/init/arc-setup.conf
fi
}
create_image() {
# Creates a blank ext4 image.
# Make some working directories if they don't already exist.
mkdir -p /usr/local/Android_Images
mkdir -p /usr/local/Android_Images/Mounted
mkdir -p /usr/local/Android_Images/Original
echo
echo "Creating new Android system image at /usr/local/Android_Images/system.raw.expanded.img"
# Make the image.
# For arm, the unsquashed image needs to be at least~ 1GB (~800MB for Marshmallow).
# For x86, the unsquashed image needs to be at least ~1.4GB (~1GB for Marshmallow).
# Since the raw rootfs has increased in size lately, create a blank 2GB image, make it sparse so it takes only as much space on disk as required.
# If /usr/local/Android_Images/system.raw.expanded.img already exists, delete it.
rm -rf /usr/local/Android_Images/system.raw.expanded.img
# Previous version of file creation used dd
# It's much faster if we use fallocate and starts off sparse, so uses only as much space on disk as necessary.
if [ $ANDROID_ARCH=armv7 ]; then
cd /usr/local/Android_Images
# dd if=/dev/zero of=system.raw.expanded.img count=2000000 bs=1024 status=progress
fallocate -l 2.2G /usr/local/Android_Images/system.raw.expanded.img
else
if [ $ANDROID_ARCH=x86 ]; then
cd /usr/local/Android_Images
# dd if=/dev/zero of=system.raw.expanded.img count=2000000 bs=1024 status=progress
fallocate -l 2.2G /usr/local/Android_Images/system.raw.expanded.img
echo "2.2 gigabaytlik bir dosya yarattim"
else
echo "Error!"
echo "Unable to detect correct architecture!"
echo
exit 1
fi
#
fi
sleep 0.001
echo "Formatting system.raw.expanded.img as ext4 filesystem"
echo
# After we create an image with fallocate, mkfs.ext4 complains about the geometry/cylinders when we format it
# Here, we ignore this complaint, sending it 2>/dev/null
mkfs ext4 -F /usr/local/Android_Images/system.raw.expanded.img 2>/dev/null
}
download_busybox () {
# Since there doesn't appear to be a built-in zip uncompressor available on the command line, if we need to download SuperSU,
# we download BusyBox in order to unzip it. We will also install BusyBox into Android's system/xbin.
if [ ! -e /usr/local/bin/busybox ]; then
echo "Downloading BusyBox"
mkdir -p /tmp/aroc
cd /tmp/aroc
if [ $ANDROID_ARCH=armv7 ]; then
curl https://busybox.net/downloads/binaries/1.26.2-defconfig-multiarch/busybox-armv6l -o busybox
else
if [ ANDROID_ARCH=x86 ]; then
# Commenting out the x64 version as most x64 systems still use a 32 bit Android container.
# So if we use the 32 bit BusyBox, copying it to Android will work.
# curl https://busybox.net/downloads/binaries/1.26.2-defconfig-multiarch/busybox-x86_64 -o busybox
curl https://busybox.net/downloads/binaries/1.26.2-defconfig-multiarch/busybox-i686 -o busybox
else
echo "Error!"
echo "Unable to detect correct architecture!"
echo
exit 1
echo
fi
fi
echo "Moving BusyBox to /usr/local/bin"
mkdir -p /usr/local/bin
mv busybox /usr/local/bin/busybox
chmod a+x /usr/local/bin/busybox
fi
echo "busybox gereken yere kopyalandi"
}
download_supersu() {
supersu_url="https://download.chainfire.eu/1220/SuperSU/SR5-SuperSU-v2.82-SR5-20171001224502.zip?retrieve_file=1"
supersu_correct_size=6882992
echo "Downloading SuperSU-v2.82-SR5"
mkdir -p /tmp/aroc
cd /tmp/aroc
curl "$supersu_url" -o SuperSU.zip
# Check filesize
supersu_size=$(stat -c %s /tmp/aroc/SuperSU.zip)
if [ "$supersu_size" = "$supersu_correct_size" ]; then
echo "Unzipping SuperSU zip, and copying required directories to ~/Downloads."
/usr/local/bin/busybox unzip SuperSU.zip
else
echo "Unexpected file size. Trying again..."
curl "$supersu_url" -o SuperSU.zip
fi
# Check filesize again...
supersu_size=$(stat -c %s /tmp/aroc/SuperSU.zip)
if [ "$supersu_size" = "$supersu_correct_size" ]; then
echo "Unzipping SuperSU zip, and copying required directories to ~/Downloads."
/usr/local/bin/busybox unzip SuperSU.zip
else
echo "Unexpected file size again! You can manually download the SuperSU zip and extract its directories to ~/Downloads. Then run this script again."
exit 1
fi
# Copy the required files over to ~/Downloads
cp -r -a common /home/chronos/user/Downloads
echo "Burada Android architecture soyle $ANDROID_ARCH"
if [ $ANDROID_ARCH=armv7 ]; then
cp -r -a armv7 /home/chronos/user/Downloads
else
if [ $ANDROID_ARCH=x86 ]; then
cp -r -a x86 /home/chronos/user/Downloads
else
echo "Error!"
echo "Unable to detect correct architecture!"
echo
exit 1
echo
fi
fi
}
# The following two functions copy the (architecture-dependent) su binary to /system.
# For arm Chromebooks we need /armv7/su, but for Intel Chromebooks we need /x86/su.pie.
copy_su_armv7() {
echo "Copying su to system/xbin/su,daemonsu,sugote, and setting permissions and contexts"
cd $arc_system/xbin
cp $SU_ARCHDIR/su $arc_system/xbin/su
cp $SU_ARCHDIR/su $arc_system/xbin/daemonsu
cp $SU_ARCHDIR/su $arc_system/xbin/sugote
chmod 0755 $arc_system/xbin/su
chmod 0755 $arc_system/xbin/daemonsu
chmod 0755 $arc_system/xbin/sugote
chown 655360 $arc_system/xbin/su
chown 655360 $arc_system/xbin/daemonsu
chown 655360 $arc_system/xbin/sugote
chgrp 655360 $arc_system/xbin/su
chgrp 655360 $arc_system/xbin/daemonsu
chgrp 655360 $arc_system/xbin/sugote
chcon u:object_r:system_file:s0 $arc_system/xbin/su
chcon u:object_r:system_file:s0 $arc_system/xbin/daemonsu
chcon u:object_r:zygote_exec:s0 $arc_system/xbin/sugote
sleep 0.2
echo "Creating directory system/bin/.ext/.su"
cd $arc_system/bin
mkdir -p $arc_system/bin/.ext
echo "Copying su to system/bin/.ext/.su and setting permissions and contexts"
cd $arc_system/bin/.ext
cp $SU_ARCHDIR/su $arc_system/bin/.ext/.su
chmod 0755 $arc_system/bin/.ext/.su
chcon u:object_r:system_file:s0 $arc_system/bin/.ext/.su
chown 655360 $arc_system/bin/.ext/.su
chgrp 655360 $arc_system/bin/.ext/.su
}
copy_su_x86() {
echo "Copying su to system/xbin/su,daemonsu,sugote, and setting permissions and contexts"
cd $arc_system/xbin
cp $SU_ARCHDIR/su.pie $arc_system/xbin/su
cp $SU_ARCHDIR/su.pie $arc_system/xbin/daemonsu
cp $SU_ARCHDIR/su.pie $arc_system/xbin/sugote
chmod 0755 $arc_system/xbin/su
chmod 0755 $arc_system/xbin/daemonsu
chmod 0755 $arc_system/xbin/sugote
chown 655360 $arc_system/xbin/su
chown 655360 $arc_system/xbin/daemonsu
chown 655360 $arc_system/xbin/sugote
chgrp 655360 $arc_system/xbin/su
chgrp 655360 $arc_system/xbin/daemonsu
chgrp 655360 $arc_system/xbin/sugote
chcon u:object_r:system_file:s0 $arc_system/xbin/su
chcon u:object_r:system_file:s0 $arc_system/xbin/daemonsu
chcon u:object_r:zygote_exec:s0 $arc_system/xbin/sugote
sleep 0.2
echo "Creating directory system/bin/.ext/.su"
cd $arc_system/bin
mkdir -p $arc_system/bin/.ext
echo "Copying su to system/bin/.ext/.su and setting permissions and contexts"
cd $arc_system/bin/.ext
cp $SU_ARCHDIR/su.pie $arc_system/bin/.ext/.su
chmod 0755 $arc_system/bin/.ext/.su
chcon u:object_r:system_file:s0 $arc_system/bin/.ext/.su
chown 655360 $arc_system/bin/.ext/.su
chgrp 655360 $arc_system/bin/.ext/.su
}
copy_busybox()
{
# If we downloaded Busybox earlier, we may as well copy it to /system/xbin (although we don't need to for the purpose of this script).
echo "Attempting to install BusyBox into Android container"
if [ -e /tmp/aroc/busybox ] ; then
echo "Copying BusyBox to /system/xbin"
cp /tmp/aroc/busybox $arc_system/xbin
chown 655360 $arc_system/xbin/busybox
chgrp 655360 $arc_system/xbin/busybox
chmod a+x $arc_system/xbin/busybox
cd $arc_system/xbin/
echo "Executing './busybox --install -s ../xbin'"
./busybox --install -s ../xbin
echo "Replacing absolute symlinks created by 'busybox --install' with relative symlinks"
find ../xbin -lname "*" -exec sh -c 'ln -sfr busybox $0' {} \;
else
if [ -e /usr/local/bin/busybox ] ; then
cp /usr/local/bin/busybox $arc_system/xbin
chown 655360 $arc_system/xbin/busybox
chgrp 655360 $arc_system/xbin/busybox
chmod a+x $arc_system/xbin/busybox
cd $arc_system/xbin/
echo "Executing './busybox --install -s ../xbin'"
./busybox --install -s ../xbin
echo "Replacing absolute symlinks created by 'busybox --install' with relative symlinks"
find ../xbin -lname "*" -exec sh -c 'ln -sfr busybox $0' {} \;
fi
fi
}
# Functions (Part 2 - for patching SE Linux)
sepolicy_patch() {
# The sepolicy_patch has some of the same logic as the main script.
# It copies su etc. to a temp. directory and then bind mounts it.
# This is so we can patch selinux without having to reboot the Chromebook first.
copy_su_armv7_temp() {
echo "Copying su to /opt/google/containers/android/rootfs/android-data/data/adb/su/bin/su, and setting permissions and contexts"
cd $arc_system_temp/bin
cp $SU_ARCHDIR/su $arc_system_temp/bin/su
cp $SU_ARCHDIR/su $arc_system_temp/bin/daemonsu
cp $SU_ARCHDIR/su $arc_system_temp/bin/sugote
chmod 0755 $arc_system_temp/bin/su
chmod 0755 $arc_system_temp/bin/daemonsu
chmod 0755 $arc_system_temp/bin/sugote
chown 655360 $arc_system_temp/bin/su
chown 655360 $arc_system_temp/bin/daemonsu
chown 655360 $arc_system_temp/bin/sugote
chgrp 655360 $arc_system_temp/bin/su
chgrp 655360 $arc_system_temp/bin/daemonsu
chgrp 655360 $arc_system_temp/bin/sugote
chcon u:object_r:system_file:s0 $arc_system_temp/bin/su
chcon u:object_r:system_file:s0 $arc_system_temp/bin/daemonsu
chcon u:object_r:zygote_exec:s0 $arc_system_temp/bin/sugote
}
copy_su_x86_temp() {
echo "Copying su to /opt/google/containers/android/rootfs/android-data/data/adb/su/bin/su, and setting permissions and contexts"
cd $arc_system_temp/bin
cp $SU_ARCHDIR/su.pie $arc_system_temp/bin/su
cp $SU_ARCHDIR/su.pie $arc_system_temp/bin/daemonsu
cp $SU_ARCHDIR/su.pie $arc_system_temp/bin/sugote
chmod 0755 $arc_system_temp/bin/su
chmod 0755 $arc_system_temp/bin/daemonsu
chmod 0755 $arc_system_temp/bin/sugote
chown 655360 $arc_system_temp/bin/su
chown 655360 $arc_system_temp/bin/daemonsu
chown 655360 $arc_system_temp/bin/sugote
chgrp 655360 $arc_system_temp/bin/su
chgrp 655360 $arc_system_temp/bin/daemonsu
chgrp 655360 $arc_system_temp/bin/sugote
chcon u:object_r:system_file:s0 $arc_system_temp/bin/su
chcon u:object_r:system_file:s0 $arc_system_temp/bin/daemonsu
chcon u:object_r:zygote_exec:s0 $arc_system_temp/bin/sugote
}
# Check if the SuperSU 'common directory' is already present in ~/Downloads. If it doesn't, we will try to download it (and unzip it with BusyBox).
if [ ! -e /home/chronos/user/Downloads/common ]; then
echo "SuperSU files not found in ~/Downloads! Attempting to download BusyBox and SuperSU now..."
mkdir -p /tmp/aroc
cd /tmp/aroc
download_busybox
download_supersu
fi
echo "Creating temporary directory /opt/google/containers/android/rootfs/android-data/data/adb/su and subdirs"
mkdir -p /opt/google/containers/android/rootfs/android-data/data/adb/su
mkdir -p /opt/google/containers/android/rootfs/android-data/data/adb/su/bin
mkdir -p /opt/google/containers/android/rootfs/android-data/data/adb/su/lib
mkdir -p /opt/google/containers/android/rootfs/android-data/data/adb/su/xbin
setenforce 0
#echo "Copying contents of existing /system/xbin and /system/lib"
echo "Copying contents of existing Android /system/lib to /opt/google/containers/android/rootfs/android-data/data/adb/su/lib"
cp -a -r /opt/google/containers/android/rootfs/root/system/lib/. /opt/google/containers/android/rootfs/android-data/data/adb/su/lib/.
#cp -a -r /opt/google/containers/android/rootfs/root/system/xbin/. /opt/google/containers/android/rootfs/android-data/data/adb/su/xbin/.
echo "Copying contents of existing Android /sbin to /opt/google/containers/android/rootfs/android-data/data/adb/su/bin"
cp -a -r /opt/google/containers/android/rootfs/root/sbin/. /opt/google/containers/android/rootfs/android-data/data/adb/su/bin/.
# Set the right directory from which to copy the su binary.
case "$ANDROID_ARCH" in
armv7)
SU_ARCHDIR=/home/chronos/user/Downloads/armv7
;;
esac
case "$ANDROID_ARCH" in
x86)
SU_ARCHDIR=/home/chronos/user/Downloads/x86
;;
esac
# If su doesn't appear to be present, try to download it.
if [ ! -e $SU_ARCHDIR ]; then
download_busybox
download_supersu
fi
common=/home/chronos/user/Downloads/common
arc_system_temp=/opt/google/containers/android/rootfs/android-data/data/adb/su
# For arm Chromebooks we need armv7/su, but for Intel we need x86/su.pie
case "$ANDROID_ARCH" in
armv7)
copy_su_armv7_temp
;;
esac
case "$ANDROID_ARCH" in
x86)
copy_su_x86_temp
;;
esac
echo "Copying supolicy to su/bin, libsupol to su/lib and setting permissions and contexts"
cd $arc_system_temp/bin
cp $SU_ARCHDIR/supolicy $arc_system_temp/bin/supolicy
chmod 0755 $arc_system_temp/bin/supolicy
chown 655360 $arc_system_temp/bin/supolicy
chgrp 655360 $arc_system_temp/bin/supolicy
chcon u:object_r:system_file:s0 $arc_system_temp/bin/supolicy
cd $arc_system_temp/lib
cp $SU_ARCHDIR/libsupol.so $arc_system_temp/lib/libsupol.so
chmod 0644 $arc_system_temp/lib/libsupol.so
chown 655360 $arc_system_temp/lib/libsupol.so
chgrp 655360 $arc_system_temp/lib/libsupol.so
chcon u:object_r:system_file:s0 $arc_system_temp/lib/libsupol.so
#echo "Temporarily bind mounting su/xbin and su/lib within the Android container."
echo "Attempting to bind mount temp dir /data/adb/su/bin to /sbin within the Android container."
printf "mount -o bind /data/adb/su/bin /sbin " | android-sh
echo "Attempting to bind mount temp dir /data/adb/su/lib to /system/lib within the Android container."
printf "mount -o bind /data/adb/su/lib /system/lib" | android-sh
echo
echo "Any Android apps currently running may stop working now and may not function correctly until this script has completed and the system has been rebooted."
if [ ! -e /opt/google/containers/android/rootfs/android-data/data/adb/su/bin/su ]; then
echo
echo
echo "Checking for the presence of SuperSU..."
sleep 0.2
echo
echo "Error!"
echo "SU binary not found! Unable to continue."
echo
exit 1
else
echo
if [ ! -e /etc/selinux/arc/policy/policy.30.old ]; then
echo "Copying original policy.30 to /etc/selinux/arc/policy/policy.30.old"
cp /etc/selinux/arc/policy/policy.30 /etc/selinux/arc/policy/policy.30.old
fi
if [ ! -e /usr/local/Backup/policy.30.old ]; then
mkdir -p /usr/local/Backup
echo "Copying original policy.30 to /usr/local/Backup/policy.30.old"
cp /etc/selinux/arc/policy/policy.30 /usr/local/Backup/policy.30.old
fi
echo "Copying policy.30 to /home/chronos/user/Downloads/policy.30 to allow Android access to the file".
cp -a /etc/selinux/arc/policy/policy.30 /home/chronos/user/Downloads/policy.30
echo
echo "Opening an Android shell and attempting to patch policy_30."
sleep 0.2
echo
printf 'su -c supolicy --file /var/run/arc/sdcard/default/emulated/0/Download/policy.30 /var/run/arc/sdcard/default/emulated/0/Download/policy.30_out --sdk=25 \n su -c "chmod 0644 /var/run/arc/sdcard/default/emulated/0/Download/policy.30_out"' | android-sh
if [ -e /home/chronos/user/Downloads/policy.30_out ]; then
echo
echo "Overwriting policy.30"
echo "Copying patched policy from /home/chronos/user/Downloads/policy.30_out to /etc/selinux/arc/policy/policy.30"
cp -a /home/chronos/user/Downloads/policy.30_out /etc/selinux/arc/policy/policy.30
sleep 0.2
echo "SE Linux policy patching completed!"
echo "Rebooting the Android container"
printf "reboot" | android-sh 2>/dev/null
else
echo
echo "Error!"
echo "Patched SE policy file not found! Unable to complete the procedure."
echo
echo "You may need to try running the separate patching script after a reboot."
echo "Removing temporary directory /opt/google/containers/android/rootfs/android-data/data/adb/su"
rm -rf /opt/google/containers/android/rootfs/android-data/data/adb/su
exit 1
fi
fi
echo
echo "Copying Android /sepolicy to /usr/local/Backup/sepolicy.old"
cp -a /usr/local/Android_Images/Mounted/sepolicy /usr/local/Backup/sepolicy.old
echo "Overwriting Android /sepolicy with patched policy.30"
cp -a /home/chronos/user/Downloads/policy.30_out /usr/local/Android_Images/Mounted/sepolicy
echo "Setting permissions and context for /sepolicy"
chown 655360 /usr/local/Android_Images/Mounted/sepolicy
chgrp 655360 /usr/local/Android_Images/Mounted/sepolicy
chcon u:object_r:rootfs:s0 /usr/local/Android_Images/Mounted/sepolicy
echo "Removing temporary directory /opt/google/containers/android/rootfs/android-data/data/adb/su"
rm -rf /opt/google/containers/android/rootfs/android-data/data/adb/su
echo "Done!"
}
# Functions end
main() {
check_if_root
echo "Rooting scripts for Android on Chrome OS"
sleep 0.02
echo
echo "Version 0.26"
sleep 0.02
echo
echo "Unofficial scripts to copy SuperSU files to an Android system image on Chrome OS"
sleep 0.02
echo
echo "Be aware that modifying the system partition could cause automatic updates to fail (unlikely), may result in having to powerwash or restore from USB potentially causing loss of data! Please make sure important files are backed up."
sleep 0.02
echo
check_writeable_rootfs
# Remount the Chrome OS root drive as writeable
mount -o remount,rw / 2> /dev/null
# Modify the two/three envs in /etc/init
modify_cros_files
# Make a new writeable Android rootfs image, symlink it in place of the original, and copy our files to it.
# First, check if symlink already exists.
if [ -L /opt/google/containers/android/system.raw.img ]; then
echo
echo "WARNING: The file at /opt/google/containers/android/system.raw.img is already a symlink!"
sleep 2
echo
echo "Should Android apps fail to load after this, restore the original container from backup and reboot before trying again."
sleep 0.2
echo "You can usually restore the original (stock) Android container from the backup by entering the following (all one line):"
sleep 0.2
echo
echo "sudo mv /opt/google/containers/android/system.raw.img.bk /opt/google/containers/android/system.raw.img"
sleep 0.2
echo
echo "Press Ctrl+C to cancel, if you want to do this now."
sleep 3
echo
# If the file is already a symlink, we need to check if a backup of the original system.raw.img exists.
if [ ! -f /home/chronos/user/Downloads/system.raw.img ]; then
if [ ! -f /opt/google/containers/android/system.raw.img.bk ]; then
echo
echo "Error!"
echo "System.raw.img not found"
echo
exit 1
fi
fi
echo "Removing symlink"
rm -rf /opt/google/containers/android/system.raw.img
fi
if [ ! -e /opt/google/containers/android/system.raw.img ]; then
if [ -f /opt/google/containers/android/system.raw.img.bk ]; then
echo "Using /opt/google/containers/android/system.raw.img.bk"
else
if [ -f /home/chronos/user/Downloads/system.raw.img ]; then
echo "Using /home/chronos/user/Downloads/system.raw.img"
else
echo
echo "Error!"
echo "System.raw.img not found"
echo
exit 1
fi
fi
fi
# Unmount any previous instances
umount -l /usr/local/Android_Images/system.raw.expanded.img 2>/dev/null
umount -l /usr/local/Android_Images/system.raw.expanded.img 2>/dev/null
umount -l /usr/local/Android_Images/Original 2>/dev/null
umount -l /usr/local/Android_Images/Mounted 2>/dev/null
detect_architecture
create_image
echo "Mounting system.raw.expanded.img"
if [ -e /opt/google/containers/android/system.raw.img ]; then
if [ -L /opt/google/containers/android/system.raw.img ]; then
if [ -e /opt/google/containers/android/system.raw.img.bk ]; then
umount -l /usr/local/Android_Images/Original 2>/dev/null
mount -o loop,rw,sync /opt/google/containers/android/system.raw.img.bk /usr/local/Android_Images/Original 2>/dev/null
else
if [ -e /home/chronos/user/Downloads/system.raw.img ]; then
umount -l /usr/local/Android_Images/Original 2>/dev/null
mount -o loop,rw,sync /home/chronos/user/Downloads/system.raw.img /usr/local/Android_Images/Original 2>/dev/null
else
echo
echo "Error!"
echo "System.raw.img not found"
echo
exit 1
fi
fi
fi
fi
if [ ! -L /opt/google/containers/android/system.raw.img ]; then
if [ -e /opt/google/containers/android/system.raw.img ]; then
umount -l /usr/local/Android_Images/Original 2>/dev/null
mount -o loop,rw,sync /opt/google/containers/android/system.raw.img /usr/local/Android_Images/Original 2>/dev/null
else
if [ -e /opt/google/containers/android/system.raw.img.bk ]; then
umount -l /usr/local/Android_Images/Original 2>/dev/null
mount -o loop,rw,sync /opt/google/containers/android/system.raw.img.bk /usr/local/Android_Images/Original 2>/dev/null
else
if [ -e /home/chronos/user/Downloads/system.raw.img ]; then
echo "Mounting /home/chronos/user/Downloads/system.raw.img and copying files"
umount -l /usr/local/Android_Images/Original 2>/dev/null
mount -o loop,rw,sync /home/chronos/user/Downloads/system.raw.img /usr/local/Android_Images/Original 2>/dev/null
else
echo
echo "Error!"
echo "System.raw.img not found"
echo
exit 1
fi
fi
fi
fi
#ORIGINAL_ANDROID_ROOTFS=/opt/google/containers/android/rootfs/root
ANDROID_ROOTFS=/usr/local/Android_Images/Original
# We want to set SELinux to 'Permissive' so we can copy rootfs files with their original contexts without encountering errors.
# At one point, the ability to 'setenforce' was removed in an OS update. (it was later restored in another update).
setenforce 0
# Check if it worked
SE=$(getenforce)
if SE="Permissive"; then
echo "SELinux successfully set to 'Permissive' temporarily"
echo "Copying Android system files"
mount -o loop,rw,sync /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/. /usr/local/Android_Images/Mounted
else
# In case we can't set SE Linux to 'Permissive', the following is a workaround to copy files with correct contexts in 'Enforcing' mode.
echo "Copying Android system files"
# We should be able to copy files/dirs, preserving original contexts, despite being in 'Enforcing' mode if we mount with -o fscontext.
# Directories to mount with special contexts:
#u:object_r:cgroup:s0 acct
#u:object_r:device:s0 dev
#u:object_r:tmpfs:s0 mnt
#u:object_r:oemfs:s0 oem
#u:object_r:sysfs:s0 sys
mount -o loop,rw,sync,fscontext=u:object_r:cgroup:s0 /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/acct /usr/local/Android_Images/Mounted/acct
umount -l /usr/local/Android_Images/Mounted
mount -o loop,rw,sync,fscontext=u:object_r:device:s0 /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/dev /usr/local/Android_Images/Mounted/dev
umount -l /usr/local/Android_Images/Mounted
mount -o loop,rw,sync,fscontext=u:object_r:tmpfs:s0 system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/mnt /usr/local/Android_Images/Mounted/mnt
umount -l /usr/local/Android_Images/Mounted
mount -o loop,rw,sync,fscontext=u:object_r:oemfs:s0 /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/oem /usr/local/Android_Images/Mounted/oem
umount -l /usr/local/Android_Images/Mounted
mount -o loop,rw,sync,fscontext=u:object_r:sysfs:s0 /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/sys /usr/local/Android_Images/Mounted/sys
umount -l /usr/local/Android_Images/Mounted
mount -o loop,rw,sync /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/storage /usr/local/Android_Images/Mounted/storage
umount -l /usr/local/Android_Images/Mounted
# Copying rootfs files
mount -o loop,rw,sync,fscontext=u:object_r:rootfs:s0 /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted
cp -a -r $ANDROID_ROOTFS/. /usr/local/Android_Images/Mounted
fi
# If we were copying files from the original Android rootfs, unmount it now we've finished..
if [ -f /opt/google/containers/android/system.raw.img ]; then
umount -l /opt/google/containers/android/system.raw.img > /dev/null 2>&1 || /bin/true
fi
# Unmount the new rootfs too, so we can mount it again without special context later
umount -l /usr/local/Android_Images/system.raw.expanded.img 2>/dev/null
# If the original rootfs exists, before replacing it with a symlink, make a backup.
# In the event of errors, re-running the script, or post-powerwash, the original may be restored by reversing the 'mv' command.
# i.e. mv /opt/google/containers/android/system.raw.img.bk /opt/google/containers/android/system.raw.img.
if [ -e /opt/google/containers/android/system.raw.img ]; then
if [ ! -L /opt/google/containers/android/system.raw.img ]; then
echo "Moving original Android rootfs image to /opt/google/containers/android/system.raw.img.bk"
mv /opt/google/containers/android/system.raw.img /opt/google/containers/android/system.raw.img.bk
# Make the symlink from the original pathname to our writeable rootfs image
echo "Replacing original Android rootfs image path with symlink to /usr/local/Android_Images/system.raw.expanded.img"
ln -s /usr/local/Android_Images/system.raw.expanded.img /opt/google/containers/android/system.raw.img
fi
else
if [ -e /usr/local/Android_Images/system.raw.expanded.img ]; then
echo "Creating symlink to /usr/local/Android_Images/system.raw.expanded.img at original Android rootfs image file path"
ln -s /usr/local/Android_Images/system.raw.expanded.img /opt/google/containers/android/system.raw.img
fi
fi
# Check if the SuperSU 'common directory' is already present in ~/Downloads. If it doesn't, we will try to download it (and unzip it with BusyBox).
if [ ! -e /home/chronos/user/Downloads/common ]; then
echo "SuperSU files not found in ~/Downloads! Attempting to download BusyBox and SuperSU now..."
mkdir -p /tmp/aroc
cd /tmp/aroc
download_busybox
download_supersu
fi
cd /usr/local/Android_Images
mkdir -p /usr/local/Android_Images/Mounted
# Mount our new Android rootfs
mount -o loop,rw,sync /usr/local/Android_Images/system.raw.expanded.img /usr/local/Android_Images/Mounted 2>/dev/null
# Set the right directory from which to copy the su binary.
echo "burada android arch su sekilde: $ANDROID_ARCH"
case "$ANDROID_ARCH" in
armv7)
SU_ARCHDIR=/home/chronos/user/Downloads/armv7
;;
esac
case "$ANDROID_ARCH" in
x86)
echo "buradax86 android arch su sekilde: $ANDROID_ARCH"
SU_ARCHDIR=/home/chronos/user/Downloads/x86
;;
esac
# In case the above doesn't exist, try to download it.
if [ ! -e $SU_ARCHDIR ]; then
download_busybox
download_supersu
fi
common=/home/chronos/user/Downloads/common
arc_system=/usr/local/Android_Images/Mounted/system
#arc_system_original=/opt/google/containers/android/rootfs/root/system
echo "Now placing SuperSU files. Locations as indicated by the SuperSU update-binary script."
sleep 0.2
echo
# Copying SuperSU files to $arc_system
echo "Hoppa Creating SuperSU directory in system/priv-app, copying SuperSU apk, and setting its permissions and contexts"
cd $arc_system/priv-app
mkdir -p $arc_system/priv-app/SuperSU
chown 655360 $arc_system/priv-app/SuperSU
chgrp 655360 $arc_system/priv-app/SuperSU
cd $arc_system/priv-app/SuperSU
cp $common/Superuser.apk $arc_system/priv-app/SuperSU/SuperSU.apk
chmod 0644 $arc_system/priv-app/SuperSU/SuperSU.apk
chcon u:object_r:system_file:s0 $arc_system/priv-app/SuperSU/SuperSU.apk
chown 655360 $arc_system/priv-app/SuperSU/SuperSU.apk
chgrp 655360 $arc_system/priv-app/SuperSU/SuperSU.apk
sleep 0.2
# For arm Chromebooks we need /armv7/su, but for for Intel we need /x86/su.pie
case "$ANDROID_ARCH" in
armv7)
copy_su_armv7
echo "burada su-arm7 icin kopya yapiyoruz"
;;
esac
case "$ANDROID_ARCH" in
x86)
echo "burada su-x86 icin kopya yapiyoruz"
copy_su_x86
;;
esac
echo "Copying supolicy to system/xbin, libsupol to system/lib and setting permissions and contexts"
cd $arc_system/xbin
cp $SU_ARCHDIR/supolicy $arc_system/xbin/supolicy
echo "burada supolicy kopyaliyoruz"
chmod 0755 $arc_system/xbin/supolicy
chown 655360 $arc_system/xbin/supolicy
chgrp 655360 $arc_system/xbin/supolicy
chcon u:object_r:system_file:s0 $arc_system/xbin/supolicy
cd $arc_system/lib
cp $SU_ARCHDIR/libsupol.so $arc_system/lib/libsupol.so
chmod 0644 $arc_system/lib/libsupol.so
chown 655360 $arc_system/lib/libsupol.so
chgrp 655360 $arc_system/lib/libsupol.so
chcon u:object_r:system_file:s0 $arc_system/lib/libsupol.so
sleep 0.2
echo "Copying sh from system/bin/sh to system/xbin/sugote-mksh and setting permissions and contexts"
cd $arc_system/bin