Database Users

Arch linux chroot

I started using Arch some months ago and I really enjoying it. Coming from a released based distro, it feels really nice been able to choose exactly what you want to run in your system and always have the packages up to date. For a while I have been planning on running ubuntu in my transformer but I just don't feel too comfortable with ubuntu , so decided to run arch in my transformer. I couldn't find a tutorial so I scavenged the net and found bits and peace that I put together to make this tutorial. What I like about arch is that I am in control of my system and I can run exactly what I want, thanks awesomely documented Arch!
This is a tutorial that will show you how to run Arch Linux in a chrooted environment within your Asus Tarsnformer. I will not provide a simple script that if you run it will do everything for you, instead I will teach you how to make your own installation by grabbing all necessary elements.
You will need:
Arch Live image: Go to http://archlinuxarm.org/developers/downloads and grab the omap 3/4 package.
Install environment: It can be your internal storage or a sd/micro card. Here I will show how to use the micro sd card.
Script for starting the chroot: I grabbed mine from http://forum.xda-developers.com/showthread.php?t=1517993&highlight=chroot and did some modifications. Thanks-miska-
Rooted Asus Transformer(Prime?) with Terminal: You need root to mount the file system and loop devices. In theory this should work in the Prime too.
Linux Machine
Step 1:
For installing arch in a (micro)sd card (I prefer micro as I don't need the dock for using it), first you need to format the card and make two partitions. (I used gparted) Make one partition fat and assign a small amount of space(I have a 4gb micro and assigned 128mb to the fat partition), then make the rest ext4. Make sure the fat partition is first and the ext one is second.
Step 2:
Now as root you need to extract the package in the ext partition of your card. REMEMBER to be root, I got stuck thinking there was something wrong with the package I downloaded but it was that I was unpacking as normal user.
Code:
# tar -c /path/to/extpartition -xzf ArchLinuxARM-omap-smp-latest.tar.gz
Now you have a arch environment in your (micro)sd card.
Step 3:
In your asus transformer create a folder called 'arch' in the root of your internal storage.
Code:
#mkdir /sdcard/arch
Or use a file manager.
Now place this script somewhere in your transformer, I usually keep it in /sdcard/Downloads
Code:
#!/bin/sh
# Modify this according to your needs
DEVICE="/dev/block/mmcblk1p2"
LOOP="no"
# Maybe this as well
MNT_PATH="/mnt/sdcard/arch"
# Modify only if you know, what are you doing
BINDS="dev dev/pts proc sys mnt/sdcard"
ANDROID_BINDS=" /system /data "
TMPS="tmp var/tmp var/log var/run"
MY_MOUNTS=""
unset PS1
# Helper functions
die() {
echo " $1"
exit 1
}
safe_mount() {
mkdir -p "$MNT_PATH""$2"
if [ "$3" ]; then
OPTION=" $3 "
else
OPTION=""
fi
if [ -z "`mount | grep " $MNT_PATH$2 "`" ]; then
mount $OPTION "$1" "$MNT_PATH$2" || die "Can't mount $2!!!"
fi
MY_MOUNTS="$MNT_PATH$2 $MY_MOUNTS"
}
# Real work
[ "`whoami || echo root`" = "root" ] || die "You must be root first!"
LOOP_ARG=""
[ "$LOOP" = "no" ] || LOOP_ARG=" -o loop "
safe_mount $DEVICE "" "$LOOP_ARG -t ext4 "
for i in $BINDS; do
safe_mount "/$i" "/$i" " -o bind "
done
if [ -d /Removable ]; then
for i in /Removable/*; do
[ -d "$i" ] && safe_mount $i /mnt$i " -o bind "
done
fi
for i in $ANDROID_BINDS; do
safe_mount $i /mnt/android$i " -o bind "
done
for i in $TMPS; do
safe_mount none /$i " -t tmpfs "
done
mount -o remount,ro "$MNT_PATH"
chroot "$MNT_PATH" /sbin/fsck.ext2 -y "$DEVICE"
mount -o remount,rw "$MNT_PATH"
# Tweak configuration of the chroot during first start
#if [ \! -f "$MNT_PATH"/etc/profile.d/tweak.sh ]; then
#mkdir -p "$MNT_PATH"/home/opensuse
echo 'nameserver 8.8.8.8' > "$MNT_PATH"/etc/resolv.conf
#echo 'net:x:3003:root,opensuse' >> "$MNT_PATH"/etc/group
#echo 'opensuse:x:1000:100::/home/opensuse:/bin/bash' >> "$MNT_PATH"/etc/passwd
#echo 'opensuse:$1$joWqOQdr$YsapocP32UtdiR3PKBXVM1:15395:0:::::' \
# >> "$MNT_PATH"/etc/shadow
#sed -i 's|^root:.*|root:$1$joWqOQdr$YsapocP32UtdiR3PKBXVM1:15395:0:::::|' \
# "$MNT_PATH"/etc/shadow
#echo '#!/bin/sh
#export TERM=linux
#export LANG="en_US.utf-8"
#export EDITOR="busybox vi"
#alias vi="busybox vi"
#precmd() { :; }
#if [ "`whoami`" = root ]; then
# export HOME=/root
# export USER=root
# hostname -F /etc/HOSTNAME
#fi
#if [ -z "$CHROOTED" ]; then
# export CHROOTED=yes
# export HOME="/home/opensuse"
# export USER="opensuse"
# su opensuse
#fi
#' > "$MNT_PATH"/etc/profile.d/tweak.sh
#fi
export PATH="/bin:/sbin:/usr/bin:/usr/sbin:/system/xbin:/system/bin"
# Chroot
chroot "$MNT_PATH" /bin/bash
#chroot "$MNT_PATH" /root/init.sh
# Cleanup
echo "Umount everything"
for i in $MY_MOUNTS; do
umount -l $i
done
Step 4:
Chmod +x the script and run it as root.
Code:
su
#chmod +x scriptname.sh
sh scriptname.sh
The script will mount the ext partition of your (micro)sd card in /sdcard/arch and will chroot into it. It also does other really nice things, such as mounting your android partitions to /mnt so you can access them from within your arch environment. I have disabled some lines that are used to set up a some environment variables, but you should still be able to get a fully functional command-line environment and you can enable them and modify them as you want.
Step 5:
The rest is completely up to you, now you have arch running in your transformer. But what!? You need X?! really???? Ok, so lets create a vnc server so we can remote into it.
Your network connection should work, so the first thing to do is an update
Code:
#pacman -Syu
Now install xorg
Code:
#pacman -S xorg-server xorg-xinit xorg-twm xorg-xclock xterm
Now install a vncserver
Code:
#pacman -S tightvnc
And now this is the tricky part(And I spent a lot of time in this).
I grabbed this script from the UbuntuInstaller post. This is the script they use for setting a resolution at each boot. What I did was to remove the resolution prompt and fix the resolution to 1280x752(fullscreen) and remove some ubuntu stuff. I also added an export for HOME and USER that will allow you to run 'vncserver' as root.
Code:
#!/bin/bash
#############################################
# Asks User to screen size and saves as REZ #
#############################################
#echo "Now enter the screen size you want in pixels (e.g. 800x480), followed by [ENTER]:"
#read REZ
###########################################
# Tidy up previous LXDE and DBUS sessions #
###########################################
#rm /tmp/.X* > /dev/null 2>&1
#rm /tmp/.X11-unix/X* > /dev/null 2>&1
#rm /root/.vnc/localhost* > /dev/null 2>&1
#rm /var/run/dbus/pid > /dev/null 2>&1
############################################################
# enable workaround for upstart dependent installs #
# in chroot'd environment. this allows certain packages #
# that use upstart start/stop to not fail on install. #
# this means they will have to be launched manually though #
############################################################
#dpkg-divert --local --rename --add /sbin/initctl > /dev/null 2>&1
#ln -s /bin/true /sbin/initctl > /dev/null 2>&1
###############################################
# start vnc server with given resolution and #
# DBUS server, (and optionally an SSH server) #
###############################################
export HOME="/root/"
export USER="root"
vncserver :0 -geometry 1280x752
dbus-daemon --system --fork > /dev/null 2>&1
/etc/rc.d/sshd start
#echo
#echo "If you see the message 'New 'X' Desktop is localhost:0' then you are ready to VNC into your ubuntu OS.."
#echo
#echo "If VNC'ing from a different machine on the same network as the android device use the 1st address below:"
##########################################
# Output IP address of android device #
##########################################
ifconfig | grep "inet addr"
#echo
#echo "If using androidVNC, change the 'Color Format' setting to 24-bit colour, and once you've VNC'd in, change the 'input mode' to touchpad (in settings)"
#echo
#echo "To shut down the VNC server and exit the ubuntu environment, just enter 'exit' at this terminal - and WAIT for all shutdown routines to finish!"
#echo
###############################################################
# Spawn and interactive shell - this effectively halts script #
# execution until the spawning shell is exited (i.e. you want #
# to shut down vncserver and exit the ubuntu environment) #
###############################################################
/bin/bash -i
#########################################
# Disable upstart workaround and #
# kill VNC server (and optionally SSH) #
# Rename used xstartup to its first file#
#########################################
vncserver -kill :0
/etc/rc.d/sshd stop
Place this script in /root/, give it the name 'init.sh' and make sure it is executable(chmod +x). Now in the previous script comment the line:
Code:
chroot "$MNT_PATH" /bin/bash
and uncomment the line
Code:
chroot "$MNT_PATH" /root/init.sh
Step 6:
Now you should be able to start a vncserver with twm as your window manager and a xterm.
You can now go to
https://wiki.archlinux.org/index.php/Desktop_Environment
or
https://wiki.archlinux.org/index.php/Window_Manager
and set up the desktop environment that you like the most.
Remember that you need to set up the graphical environment to start manually and not at boot. In a normal environment you would usually use 'startx' which will read the .xinitrc file and run the programs from there. In our case put everything that needs to go into .xinitrc into ~/.vnc/xstartup. An example of my ~/.vnc/xstartup
Code:
#!/bin/bash
xrdb $HOME/.Xresources
exec startfluxblox
This will start an empty fluxbox window manager.

Android 4.2.2 (PAC, CM10.1, etc): Mount CIFS share on /sdcard (incl. nls_utf8)

With Android 4.2's multi-user stuff and the dreaded "0" folder, Google broke mounting of CIFS shares for good. (They basically implemented something utterly useless for my needs, and broke something I need on a daily basis.) Cyanogenmod fixed that for mounts outside the /storage hierarchy, but many apps can't go there. And with 4.2.2, Google made using adb on the device very annoying as well, which adds to problems for a workaround for mounting shares in a useful place.
So I looked around for various fixes for that issue and compiled those into one method that works perfectly well for me on a P6810 running the current PAC ROM 20130629. It should probably work for any other CM10.1 or PA3.6x-based ROM as well. A nls_utf8.ko module compiled for the Nexus 10 is included as well, which can be loaded via punchmod (at least in PAC), so you can access shares with Ümläüts in them.
Prerequisites: SManager, SMWidgets, and a working Busybox install (I use Stericson's Busybox Installer).
1.) Extract nls_utf8.ko and punchmod from the attached .zip file and put them in /system/lib/modules. You can put them in some other place as well, but my scripts need to be adjusted then. Next, give the files sufficient permissions:
Code:
chmod 644 /system/lib/modules/nls_utf8.ko
chmod 755 /system/lib/modules/punchmod
2.) Optional: if you want the module to auto-start, create a file called 00punch-nls_utf8 (or whatever you like) with the content below, put it in /etc/init.d and chmod it to 755. To check if nls-utf8 is loaded after a reboot, type lsmod in a terminal window or adb shell - it should display the module name. If punchmod auto-detection fails, read here how to get the right vermagic string for your device: http://forum.xda-developers.com/showthread.php?p=41920265#post41920265
Code:
#!/system/bin/sh
sleep 10
/system/lib/modules/punchmod /system/lib/modules/nls_utf8.ko ""
3.) Here's the script that mounts a CIFS share. Edit the settings on top and either put your correct vermagic string as well, or delete the "$VERMAGIC" part in line 22 and try your luck with auto-detection. I put some sanity checks in the script, but it might not work for all directories in /sdcard (or, /data/media/0, to call it by its 'real' name/location). If you don't want to use the nls-utf8 module, just delete lines 18-23, and iocharset=utf8 in line 67.
Name the script mount-music.sh or something, put the script wherever you like, open SManager and navigate to the script. Run the script with SU permissions. If everything goes well, it will ask you to accept an adb RSA key, and then adb mounts the share. You can also add a desktop widget for quick access to the script with SMWidgets.
Code:
#!/system/bin/sh
# Your settings here
IP="192.168.1.123"
SHARE="Music"
USER="yourusername"
PASS="yourpassword"
MOUNTPOINT="/data/media/0/cifs"
VERMAGIC="3.0.31-CM-ga034655-dirty SMP preempt mod_unload ARMv7 p2v8 "
# Load cifs (if it isn't already loaded)
if [ `lsmod | grep -o cifs` ] ; then
:
else
insmod /system/lib/modules/cifs.ko
fi
# Load nls_utf8 brute-force style (if it isn't already loaded)
if [ `lsmod | grep -o nls_utf8` ] ; then
:
else
/system/lib/modules/punchmod /system/lib/modules/nls_utf8.ko "" "$VERMAGIC"
fi
# Check if cifs $MOUNTPOINT dir exists, create it if not, give sufficient permissions
if [ -d $MOUNTPOINT ] ; then
:
else
mkdir $MOUNTPOINT
fi
chmod 755 $MOUNTPOINT
# Check if $SHARE directory is empty - if not, unmount the share
if [ "$(su root -c busybox ls -A $MOUNTPOINT/$SHARE 2> /dev/null)" == "" ] ; then
:
else
/system/xbin/busybox umount -l $MOUNTPOINT/$SHARE
fi
# Create $SHARE directory if necessary, give sufficient permissions
if [ -d $MOUNTPOINT/$SHARE ] ; then
:
else
mkdir $MOUNTPOINT/$SHARE
fi
chmod 755 $MOUNTPOINT/$SHARE
# Starting adb
adb kill-server
export HOME=/sdcard
# PORT=`getprop service.adb.tcp.port`
setprop service.adb.tcp.port 5555
adb start-server
cat /sdcard/.android/adbkey.pub >> /data/misc/adb/adb_keys
stop adbd
start adbd
adb connect localhost
# Make sure we only use the first device (sometimes there is more than one)
SERIAL=`adb devices | head -n2 | tail -n1 | cut -f1`
if [ "$SERIAL" = "" ] ; then
echo "ERROR: Could not find ADB device.";
fi
# Mounting share via adb
echo Mounting share via adb...
adb -s $SERIAL shell su root -c /system/xbin/busybox mount -t cifs //$IP/$SHARE $MOUNTPOINT/$SHARE -o user=$USER,pass=$PASS,iocharset=utf8,cache=none,directio,CIFSMaxBufSize=130048,rw,file_mode=0777,dir_mode=0777,uid=1015,gid=1015
# If you started adb, then stop it here for security
adb disconnect localhost
stop adbd
PORT=`getprop service.adb.tcp.port`
setprop service.adb.tcp.port $PORT
start adbd
# Show some results
RESULT=`mount | grep $MOUNTPOINT/$SHARE`
if [ "$RESULT" = "" ] ; then
echo "FAILED! //$IP/$SHARE could not be mounted."
else
echo "SUCCESS! //$IP/$SHARE has been mounted on $MOUNTPOINT/$SHARE."
fi
echo
echo All done. You may close this script window now.
4.) This is the script to unmount the share. Name it unmount-music.sh or similar, and edit your settings at the beginning of the script. Again, run it in SManager with SU permissions, and add a desktop widget with SMWidgets if you like.
Code:
#!/system/bin/sh
# Your settings here
SHARE="Music"
MOUNTPOINT="/data/media/0/cifs"
# Check if $SHARE directory exists
if [ -d $MOUNTPOINT/$SHARE ] ; then
# Check if $SHARE directory is empty - if not, unmount the share
if [ "$(su root -c busybox ls -A $MOUNTPOINT/$SHARE 2> /dev/null)" == "" ] ; then
echo "$MOUNTPOINT/$SHARE is empty."
else
su root -c busybox umount -l $MOUNTPOINT/$SHARE
fi
fi
# Show some results
RESULT=`mount | grep $MOUNTPOINT/$SHARE`
if [ "$RESULT" = "" ] ; then
echo "SUCCESS! $MOUNTPOINT/$SHARE has been unmounted."
else
echo "FAILED! $MOUNTPOINT/$SHARE could not be unmounted."
fi
echo
echo All done. You may close this script window now.
Hope this helps some of you. It sure stumped me how incredibly convoluted this simple and much needed procedure has become on Android 4.2.2... just because of that multi-account stuff and new restrictions on adb.
Credits:
Script bits and nls_utf8.ko by H3g3m0n
More script bits by dafunk60 and jmtw000
Punchmod by Jann Horn
Punchmod info by idcrisis

Thanks man, looks awesome, I am going to try it on my 6800.
Do you know how to mount ext4 or ntfs sdcard on CM10.1 based roms?

Removed the original post, still trying to make it work!
I checked vermagic in some existing ko files and found that it is exactly the same as yours.
Sent from my GT-p6800 using Tapatalk HD

m0bster said:
Removed the original post, still trying to make it work!
I checked vermagic in some existing ko files and found that it is exactly the same as yours.
Sent from my GT-p6800 using Tapatalk HD
Click to expand...
Click to collapse
You can try loading the UTF8 module without vermagic string as well, it should work on PAC. Or, make sure you have a blank space at the end of the vermagic string, it is required. Maybe read the short tutorial here: http://forum.xda-developers.com/showthread.php?p=41920265#post41920265

dfkt_ said:
You can try loading the UTF8 module without vermagic string as well, it should work on PAC. Or, make sure you have a blank space at the end of the vermagic string, it is required. Maybe read the short tutorial here: http://forum.xda-developers.com/showthread.php?p=41920265#post41920265
Click to expand...
Click to collapse
I finally managed to mount cifs shares, after loading original cifs and punmode load of nls_utf8.ko.
But I mounted it with cifsmanager. The script always shows "failure to mount" !

keep Avast Anti-Theft after OpenDelta / nightly flash

hey guys,
I'm trying to write an addon.d script to keep Avast Anti-Theft installed after OpenDelta's upgrades.
it only has the ability to self add a backup script in CM roms.
I looked for the list of files being kept at the appropriate .sh file for CM, and wrote the following "91-antitheft.sh" :
Code:
#!/sbin/sh
#
# /system/addon.d/91-antitheft.sh
# During a system upgrade, this script backs up avast anti theft,
# /system is formatted and reinstalled, then the files is restored.
#
. /tmp/backuptool.functions
list_files() {
cat <<EOF
priv-app/com.avast.android.antitheft.apk
etc/com.avast.android.antitheft.backup.enc
EOF
}
case "$1" in
backup)
list_files | while read FILE DUMMY; do
backup_file $S/$FILE
done
;;
restore)
list_files | while read FILE REPLACEMENT; do
R=""
[ -n "$REPLACEMENT" ] && R="$S/$REPLACEMENT"
[ -f "$C/$S/$FILE" ] && restore_file $S/$FILE $R
done
;;
pre-backup)
# Stub
;;
post-backup)
# Stub
;;
pre-restore)
# Stub
;;
post-restore)
# Stub
;;
esac
unfortunately, that doesn't keep the files.
the 2 files are definitely the following:
com.avast.android.antitheft.apk located in /system/priv-app
com.avast.android.antitheft.backup.enc located in /system/etc
what is wrong with the code?
thanks

Just use the same .sh file they developed for CM - our backuptool implementation is fully compatible.

thanks for your answer!
I went from CM 4.3 to OmniROM 4.4, so for 4.3 this is what I found in my /system:
custom_backup_list.txt inside /system/etc
containing:
Code:
app/com.avast.android.antitheft.apk
etc/com.avast.android.antitheft.backup.enc
and 99-cm.sh containing:
Code:
#!/sbin/sh
#
# /system/addon.d/50-cm.sh
# During a CM10 upgrade, this script backs up /system/etc/hosts,
# /system is formatted and reinstalled, then the file is restored.
#
. /tmp/backuptool.functions
list_files() {
cat <<EOF
app/com.avast.android.antitheft.apk
etc/com.avast.android.antitheft.backup.enc
EOF
}
case "$1" in
backup)
list_files | while read FILE DUMMY; do
backup_file $S/"$FILE"
done
;;
restore)
list_files | while read FILE REPLACEMENT; do
R=""
[ -n "$REPLACEMENT" ] && R="$S/$REPLACEMENT"
[ -f "$C/$S/$FILE" ] && restore_file $S/"$FILE" "$R"
done
;;
pre-backup)
# Stub
;;
post-backup)
# Stub
;;
pre-restore)
# Stub
;;
post-restore)
# Stub
;;
esac
so, I'm not sure OmniROM supports "custom_backup_list.txt"
and for the 99-cm.sh file, it says "app/com..." so I changed it to "priv-app/com....".
and it doesn't work. the 2 files are not there after the upgrade is finished.
so it must be something with my code, no?

hmm, custom_backup_list is something I've never seen in CM... Just backuptool in /system/addon.d/
You should be able to take the example backuptool shell file, replace the files to be backed up with the ones you want, and it should work, although you might need to make sure the file mode/ownership match the other shell files in /system/addon.d/

I changed the hosts "template" file and it works.
it's super weird because there's no real difference to what I've previously wrote.
might be that last unused # dangs it all up.
thanks for your help, Entropy512.
I've attached the sh file to whom it may concern

shmizan said:
I changed the hosts "template" file and it works.
it's super weird because there's no real difference to what I've previously wrote.
might be that last unused # dangs it all up.
thanks for your help, Entropy512.
I've attached the sh file to whom it may concern
Click to expand...
Click to collapse
Where do we put the file once we download it? Will it autorun every time we flash a nightly?

inside /system/addon.d/
and yes it will.

I followed your instructions exactly, unfortunately avast anti-theft still isn't being kept whenever I flash a new nightly. Did I need to do something else or?

Jokerswild2412 said:
I followed your instructions exactly, unfortunately avast anti-theft still isn't being kept whenever I flash a new nightly. Did I need to do something else or?
Click to expand...
Click to collapse
I think u have to remove the .txt and then save it. (save it as a .sh file)

Thanks for the script. I was just wondering how to make a script for that and then I thought let's give Google a try
And I found your post. Thanks

There's also another method.
When installing Anti-theft from within Avast you are asked if you want to install it in the system directory or make a flashable update.zip. Select the update.zip method. Then you take that zip and rename it to Update1.zip and move it to /"sdcard folder"/OpenDelta/FlashAfterUpdate/
When storing the settings for hard reset protection selec also the update.zip method rename the zip to Update2.zip and move it to the same folder.
Those two files will be flashed after every update.
The problem with this method is that you'll have to update the zips whenever there's an update for Anti-theft, but that doesn't happen really often.

I am not using OmniRom so I dont think its gonna work for me.
But the script method isn't more useful ? I mean, it does work even after flashing a new rom, or I am mistaken ?

johnannis said:
I am not using OmniRom so I dont think its gonna work for me.
But the script method isn't more useful ? I mean, it does work even after flashing a new rom, or I am mistaken ?
Click to expand...
Click to collapse
The script method is more useful for ROMs that support addon.d. As far as lately, I've only ran omni and CM. But possibly other aosp derivatives like pac, carbon, PA, etc support this as well. Check your roms OP as well as code for better answers on this.

I am on PA, but nevermind I ll keep it script method, it seems better for my needs
Sent from my Nexus 5 using Tapatalk

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How to apply profiles
http://forum.xda-developers.com/oneplus-one/development/rom-cm-12-builds-t3045053/post68636831
Lightning Kernel profiles
http://forum.xda-developers.com/oneplus-one/general/flshholic-help-thread-t2869514/post69351130
New Kernel profiles (jgcaap rom)
http://forum.xda-developers.com/oneplus-one/general/flshholic-help-thread-t2869514/post69271814
Moriarty Kernel profiles (S.O.S. rom)
http://forum.xda-developers.com/showpost.php?p=70181339&postcount=175
Battery Savings tips
1. Keep unneeded services off (location, BT, NFC, ect..)
2. Lower the screen brightness
3. Manage your apps with greenify (many apps will abuse services if you let them)
4. Don't discharge the battery to zero, and try to keep it cool (hot batteries discharge faster)

Settings Script
WELCOME TO SETTINGS SCRIPT
This is a set scripts I started collecting and working on since my days of old using a Nexus S. It has been updated and tested 100's of times and is ready for use on the OnePlus. I am not going to claim 1000's of points gained in benchmarks, or days of battery life, but it should help balance performance and battery..
Basically it's a collection of init.d scripts to gently modify some services, system, battery and various functions. This is active at boot (assuming you have init.d support and busybox). Please don't use this with other scripts (seeder is okay). Don't operate while intoxicated or holding an iPhone..
Code:
#!/system/bin/sh
# test
if [ -f /data/Test.log ] ; then
rm /data/Test.log
fi
echo "Script is working !!!" >> /data/Test.log
echo "excecuted on $(date +"%d-%m-%Y %r" )" >> /data/Test.log
# Expand Kernel Permission
if [ -e /dev/cpuctl/apps/cpu.notify_on_migrate ]; then
chown system.system /dev/cpuctl/apps/cpu.notify_on_migrate
chmod 0666 /dev/cpuctl/apps/cpu.notify_on_migrate
fi
# Cleaner
#Interval between runs, in seconds, 172800=48 hours
RUN_EVERY=172800
busybox rm -f /data/anr/*.*
busybox rm -f /data/cache/*.*
busybox rm -f /data/log/*.*
busybox rm -f /data/local/tmp/*.*
busybox rm -f /data/mlog/*
busybox rm -f /data/tombstones/*
busybox rm -f /data/backup/pending/*
busybox rm -f /data/system/dropbox/*
busybox rm -f /cache/recovery/*
busybox rm -f /dev/log/main/*
chmod 700 /data/system/dropbox
busybox chmod 700 /data/system/usagestats
# Zipalign
# 86400=24 hours
RUN_EVERY=86400
LOG_FILE=/data/zipalign.log
ZIPALIGNDB=/data/zipalign.db
if [ -e $LOG_FILE ]; then
rm $LOG_FILE;
fi;
if [ ! -f $ZIPALIGNDB ]; then
touch $ZIPALIGNDB;
fi;
echo "Starting FV Automatic ZipAlign $( date +"%m-%d-%Y %H:%M:%S" )" | tee -a $LOG_FILE
for DIR in /system/app /data/app ; do
cd $DIR
for APK in *.apk ; do
if [ $APK -ot $ZIPALIGNDB ] && [ $(grep "$DIR/$APK" $ZIPALIGNDB|wc -l) -gt 0 ] ; then
echo "Already checked: $DIR/$APK" | tee -a $LOG_FILE
else
zipalign -c 4 $APK
if [ $? -eq 0 ] ; then
echo "Already aligned: $DIR/$APK" | tee -a $LOG_FILE
grep "$DIR/$APK" $ZIPALIGNDB > /dev/null || echo $DIR/$APK >> $ZIPALIGNDB
else
echo "Now aligning: $DIR/$APK" | tee -a $LOG_FILE
zipalign -f 4 $APK /cache/$APK
cp -f -p /cache/$APK $APK
busybox rm -f /cache/$APK
grep "$DIR/$APK" $ZIPALIGNDB > /dev/null || echo $DIR/$APK >> $ZIPALIGNDB
fi
fi
done;
done;
touch $ZIPALIGNDB
echo "Automatic ZipAlign finished at $( date +"%m-%d-%Y %H:%M:%S" )" | tee -a $LOG_FILE
# Renice
B=/system/xbin/busybox
( while true
do
sf=$( service list | $B grep -c "SurfaceFlinger" )
if [ $sf -eq 1 ]
then
service call SurfaceFlinger 1008 i32 1
break
else
sleep 2
fi
done
) &
# Kernel Tweaks
if [ -e /proc/sys/kernel/softlockup_panic ]
then
echo 0 > /proc/sys/kernel/softlockup_panic
fi
if [ -e /proc/sys/kernel/hung_task_timeout_secs ]
then
echo 0 > /proc/sys/kernel/hung_task_timeout_secs
fi
if [ -e /proc/sys/kernel/panic_on_oops ]
then
echo 0 > /proc/sys/kernel/panic_on_oops
fi
if [ -e /proc/sys/kernel/panic ]
then
echo 0 > /proc/sys/kernel/panic
fi
if [ -e /proc/sys/kernel/msgmni ]
then
echo 2048 > /proc/sys/kernel/msgmni
fi
if [ -e /proc/sys/kernel/msgmax ]
then
echo 64000 > /proc/sys/kernel/msgmax
fi
if [ -e /proc/sys/kernel/shmmax ]
then
echo 268435500 > /proc/sys/kernel/shmmax
fi
if [ -e /proc/sys/kernel/threads-max ]
then
echo 525810 > /proc/sys/kernel/threads-max
fi
if [ -e /proc/sys/kernel/nmi_watchdog ]; then
echo "0" > /proc/sys/kernel/nmi_watchdog;
sysctl -e -w kernel.nmi_watchdog=0;
fi;
if [ -e /proc/sys/vm/drop_caches ]; then
echo "3" > /proc/sys/vm/drop_caches;
sysctl -e -w vm.drop_caches=3;
fi;
#fsync
if [ -e /sys/devices/virtual/misc/fsynccontrol/fsync_enabled ]; then
echo "0" > /sys/devices/virtual/misc/fsynccontrol/fsync_enabled;
fi;
if [ -e /sys/class/misc/fsynccontrol/fsync_enabled ]; then
echo "0" > /sys/class/misc/fsynccontrol/fsync_enabled;
fi;
if [ -e /sys/module/sync/parameters/fsync ]; then
echo "0" > /sys/module/sync/parameters/fsync;
fi;
if [ -e /sys/module/sync/parameters/fsync_enabled ]; then
echo "0" > /sys/module/sync/parameters/fsync_enabled;
echo "N" > /sys/module/sync/parameters/fsync_enabled;
fi;
# Disable Sleepers
echo "NO_NEW_FAIR_SLEEPERS" > /sys/kernel/debug/sched_features;
echo "NO_NORMALIZED_SLEEPER" > /sys/kernel/debug/sched_features;
# Kill Media Tweak
LOG=/data/mediaserver_log.txt;
supolicy --live "allow mediaserver mediaserver_tmpfs:file { read write execute };";
if [ "$SDK" -le "18" ]; then
if [ "$SDK" -gt "10" ]; then
echo "Mediaserver kill" >> $LOG;
busybox killall -9 android.process.media;
busybox killall -9 mediaserver;
fi;
fi;
# Vsync tweak
if [ -e /sys/kernel/debug/msm_fb/0/vsync_enable ]; then
echo 0 > /sys/kernel/debug/msm_fb/0/vsync_enable
fi;
#Sqlite
# Log file location
LOG_FILE=/data/sqlite.log
#Interval between SQLite3 runs, in seconds, 604800=1 week
RUN_EVERY=604800
# Get the last modify date of the Log file, if the file does not exist, set value to 0
if [ -e $LOG_FILE ]; then
LASTRUN=`stat -t $LOG_FILE | awk '{print $14}'`
else
LASTRUN=0
fi;
# Get current date in epoch format
CURRDATE=`date +%s`
# Check the interval
INTERVAL=$(expr $CURRDATE - $LASTRUN)
# If interval is more than the set one, then run the main script
if [ $INTERVAL -gt $RUN_EVERY ]; then
if [ -e $LOG_FILE ]; then
rm $LOG_FILE;
fi;
echo "SQLite database VACUUM and REINDEX started at $( date +"%m-%d-%Y %H:%M:%S" )" | tee -a $LOG_FILE;
for i in `busybox find /d* -iname "*.db"`;
do /system/xbin/sqlite3 $i 'VACUUM;';
resVac=$?
if [ $resVac == 0 ]; then
resVac="SUCCESS";
else
resVac="ERRCODE-$resVac";
fi;
/system/xbin/sqlite3 $i 'REINDEX;';
resIndex=$?
if [ $resIndex == 0 ]; then
resIndex="SUCCESS";
else
resIndex="ERRCODE-$resIndex";
fi;
echo "Database $i: VACUUM=$resVac REINDEX=$resIndex" | tee -a $LOG_FILE;
done
echo "SQLite database VACUUM and REINDEX finished at $( date +"%m-%d-%Y %H:%M:%S" )" | tee -a $LOG_FILE;
fi;
#Lcd power
if [ -e /sys/class/lcd/panel/power_reduce ]; then
echo "LCD power reduce detected. Activating..";
echo "1" > /sys/class/lcd/panel/power_reduce;
fi;
# Properties tweak
setprop ro.kernel.android.checkjni 0
setprop debug.kill_allocating_task 0
setprop dev.pm.dyn_samplingrate 1
setprop pm.sleep_mode 1
setprop persist.sys.purgeable_assets 1
setprop persist.cust.tel.eons 1
setprop ro.ril.enable.amr.wideband 1
setprop ro.ril.transmitpower true
setprop ro.ril.sensor.sleep.control 1
setprop ro.config.combined_signal true
setprop ro.ril.hep 1
setprop wifi.supplicant_scan_interval 300
setprop cm.filesystem.ready 1
setprop persist.service.pcsync.enable 0
setprop persist.service.lgospd.enable 0
setprop ro.min_pointer_dur 1
setprop ro.sys.fw.bg_apps_limit 6
setprop ro.lcd_min_brightness 1
setprop persist.sys.use_dithering 0
setprop persist.sys.use_16bpp_alpha 1
setprop ro.max.fling_velocity 20000
setprop ro.min.fling_velocity 10000
#Ext4 mount
# Log file location
LOG_FILE=/data/fsck.log
if ( mount | grep -w ext4 ) then
echo "EXT4 Partition Found!"
echo "Remounting..."
mount -o noatime,remount,rw,discard,barrier=0,commit=60,noauto_da_alloc,delalloc /cache /cache;
mount -o noatime,remount,rw,discard,barrier=0,commit=60,noauto_da_alloc,delalloc /data /data;
mount >> /data/fsck.log;
else
echo "EXT4 Partition Not Found!"
fi;
echo "Script finished"
FLASH AT YOUR OWN RISK
INSTALLATION:
**Requires BusyBox and init.d support**
(For some Nougat roms emulation of init.d may be nessesary, use KA mod, or another app for init.d emulation..)
Just flash in recovery, no extra steps required to enjoy..
It removes the old version, so flash and forget, it also survives a dirty flash (v5.5+)..
This has been tested, but no guarantees for protection from aliens or ninjas..
SPECIAL THANKS TO: @h-cspu @7u5h4r @Stone_88@ashutoshmn @Purerawenergy and @maxed4901 for helping me improve it..
Unless there's a bug fix or something I like, this won't get updated further.. NO ETAS
DOWNLOAD(s)
https://www.androidfilehost.com/?w=files&flid=123565
SCRIPTS & UNINSTALLER
LATEST UPDATE
VERSION: 6.1 SS Beta 08/04/2017
VERSION: 3.1 SS Stable 08/04/2017
Enjoy

Mine

CARBON
DOWNLOAD
Normal ext4 Debloated, with Android L keyboard and MiXplorer
Converted F2FS Converted, debloated, with Android L keyboard and MiXplorer.. THIS DOES NOT NEED A KERNEL FLASHED OVER THIS it is an "all in one" convert and is complete..
Original from Moonlight Original with extra Chinese apps

Not mine

yeeeaaaaaa
Sent from my 1+1

Thank you so much for bringing us carbon!

For the spreadsheet, it requires access. Don't forget to change the permissions
You need permission
Want in? Ask the owner for access, or switch to an account with permission. Learn more
Click to expand...
Click to collapse

zephiK said:
For the spreadsheet, it requires access. Don't forget to change the permissions
Click to expand...
Click to collapse
I'll get that fixed, its a work in progress..
Sent from my One using XDA Premium 4 mobile app

My name is ninjanurse, and I am a [email protected]@holic
Sent from my One A0001 using Tapatalk

welcome, ninjanurse
Sent from my 1+1

ninjanurse said:
My name is ninjanurse, and I am a [email protected]@holic
Sent from my One A0001 using Tapatalk
Click to expand...
Click to collapse
I think you need to tell the group about your latest flashing exploits, and don't forget to brag..
Sent from my One using XDA Premium 4 mobile app

Hello i am primo14z
and i can't stand to have one ROM to much time :/
so ya they say that first step is to face yourself with the problem , so I am a [email protected]@holic
i tryed Carbon ROM and i must say works great, but doesn't have that special something why would i make it my daily

I'm a [email protected]@holic as well, dansou901 is my name. My method of getting along is having multirom installed, it helps alot with all the flashing...

dansou901 said:
I'm a [email protected]@holic as well, dansou901 is my name. My method of getting along is having multirom installed, it helps alot with all the flashing...
Click to expand...
Click to collapse
I wonder if multirom works on f2fs?..
**using that search thingy, it turns out that multirom does indeed support f2fs..
Sent from my One using XDA Premium 4 mobile app

Setting.Out said:
I wonder if multirom works on f2fs?..
**using that search thingy, it turns out that multirom does indeed support f2fs..
MultiROM really helps me to stay a real [email protected]@holic, why choose a rom of choice.. I can have them all...
Click to expand...
Click to collapse

ninjanurse said:
Setting.Out said:
I wonder if multirom works on f2fs?..
**using that search thingy, it turns out that multirom does indeed support f2fs..
MultiROM really helps me to stay a real [email protected]@holic, why choose a rom of choice.. I can have them all...
Click to expand...
Click to collapse
As long as you don't run out of storage space...
Click to expand...
Click to collapse

ninjanurse said:
As long as you don't run out of storage space...
Click to expand...
Click to collapse
Binge and purge!!..
Sent from my A0001 using XDA Premium 4 mobile app

I just moved back to ext4 from f2fs.. For a Flashaholic that was a long time to be limited in how and when you can flash.. I was going through withdrawls, so I flashed 4 roms 3 recoveries and 1 kernel along with gapps and the lot as well.. AHHHH... Much better.. And honestly, I know that f2fs is supposed to be faster, but even if it is, I want a bit more freedom to flash.. I'm not saying I won't try it again, but not for a while..
I will have some updated links to websites/roms this week as well as more than just a shell of a chart.. I think the chart(s) will really help others see what a rom has to offer..

SM-T230NU - Generate .config used by a running a kernel

Is it possible to create a new kernel config file used by the running kernel for the SM-T230NU? If so, what are the steps to create one? The reason I am asking is I want to use the .config file to create a Kernel module. The module is LiME.ko and it is used to acquire the tablet's memory image which I use for forensic analysis. The challenge is that default Samsung Kernels/ROM's do not appear to come with a kernel .config file.
Your help is appreciated.
Thanks,

http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=SM-T230
-> arch/arm/config
https://github.com/GalaxyTab4/andro...h/arm/configs/pxa1088_degaswifi_eur_defconfig
-> my GitHub
checking for ikconfig
->
Code:
#!/bin/sh
# ----------------------------------------------------------------------
# extract-ikconfig - Extract the .config file from a kernel image
#
# This will only work when the kernel was compiled with CONFIG_IKCONFIG.
#
# The obscure use of the "tr" filter is to work around older versions of
# "grep" that report the byte offset of the line instead of the pattern.
#
# (c) 2009,2010 **** Streefland <****@streefland.net>
# Licensed under the terms of the GNU General Public License.
# ----------------------------------------------------------------------
cf1='IKCFG_ST\037\213\010'
cf2='0123456789'
dump_config()
{
if pos=`tr "$cf1\n$cf2" "\n$cf2=" < "$1" | grep -abo "^$cf2"`
then
pos=${pos%%:*}
tail -c+$(($pos+8)) "$1" | zcat > $tmp1 2> /dev/null
if [ $? != 1 ]
then # exit status must be 0 or 2 (trailing garbage warning)
cat $tmp1
exit 0
fi
fi
}
try_decompress()
{
for pos in `tr "$1\n$2" "\n$2=" < "$img" | grep -abo "^$2"`
do
pos=${pos%%:*}
tail -c+$pos "$img" | $3 > $tmp2 2> /dev/null
dump_config $tmp2
done
}
# Check invocation:
me=${0##*/}
img=$1
if [ $# -ne 1 -o ! -s "$img" ]
then
echo "Usage: $me <kernel-image>" >&2
exit 2
fi
# Prepare temp files:
tmp1=/tmp/ikconfig$$.1
tmp2=/tmp/ikconfig$$.2
trap "rm -f $tmp1 $tmp2" 0
# Initial attempt for uncompressed images or objects:
dump_config "$img"
# That didn't work, so retry after decompression.
try_decompress '\037\213\010' xy gunzip
try_decompress '\3757zXZ\000' abcde unxz
try_decompress 'BZh' xy bunzip2
try_decompress '\135\0\0\0' xxx unlzma
try_decompress '\211\114\132' xy 'lzop -d'
try_decompress '\002\041\114\030' xyy 'lz4 -d -l'
# Bail out:
echo "$me: Cannot find kernel config." >&2
exit 1

Thank you for getting back to me. You have been very helpful. I have a related question. How do I install the kernel I downloaded from the opensource.samsung site to my SM-T230NU?
I have created a kernel .config file from the downloaded kernel from the link you provided and subsequently generated a zImage file but I do not know how to create the ramdisk and boot.img. I tried installing the kernel using AnyKernel and Heimdall but it fails. Can you provide guidance or a tutorial on how to do this? I would rather not install a ROM. Only the kernel.
I really appreciate the help.
sub77 said:
http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=SM-T230
-> arch/arm/config
https://github.com/GalaxyTab4/andro...h/arm/configs/pxa1088_degaswifi_eur_defconfig
-> my GitHub
checking for ikconfig
->
Code:
#!/bin/sh
# ----------------------------------------------------------------------
# extract-ikconfig - Extract the .config file from a kernel image
#
# This will only work when the kernel was compiled with CONFIG_IKCONFIG.
#
# The obscure use of the "tr" filter is to work around older versions of
# "grep" that report the byte offset of the line instead of the pattern.
#
# (c) 2009,2010 **** Streefland <****@streefland.net>
# Licensed under the terms of the GNU General Public License.
# ----------------------------------------------------------------------
cf1='IKCFG_ST\037\213\010'
cf2='0123456789'
dump_config()
{
if pos=`tr "$cf1\n$cf2" "\n$cf2=" < "$1" | grep -abo "^$cf2"`
then
pos=${pos%%:*}
tail -c+$(($pos+8)) "$1" | zcat > $tmp1 2> /dev/null
if [ $? != 1 ]
then # exit status must be 0 or 2 (trailing garbage warning)
cat $tmp1
exit 0
fi
fi
}
try_decompress()
{
for pos in `tr "$1\n$2" "\n$2=" < "$img" | grep -abo "^$2"`
do
pos=${pos%%:*}
tail -c+$pos "$img" | $3 > $tmp2 2> /dev/null
dump_config $tmp2
done
}
# Check invocation:
me=${0##*/}
img=$1
if [ $# -ne 1 -o ! -s "$img" ]
then
echo "Usage: $me <kernel-image>" >&2
exit 2
fi
# Prepare temp files:
tmp1=/tmp/ikconfig$$.1
tmp2=/tmp/ikconfig$$.2
trap "rm -f $tmp1 $tmp2" 0
# Initial attempt for uncompressed images or objects:
dump_config "$img"
# That didn't work, so retry after decompression.
try_decompress '\037\213\010' xy gunzip
try_decompress '\3757zXZ\000' abcde unxz
try_decompress 'BZh' xy bunzip2
try_decompress '\135\0\0\0' xxx unlzma
try_decompress '\211\114\132' xy 'lzop -d'
try_decompress '\002\041\114\030' xyy 'lz4 -d -l'
# Bail out:
echo "$me: Cannot find kernel config." >&2
exit 1
Click to expand...
Click to collapse