[Q] Changing permission on build.prop - Galaxy Tab Q&A, Help & Troubleshooting

I have SU and Root Explorer, so I copied /system/build.prop to sdcard/prop/build.prop
I made changes to the sdcard version, now using Root Explorer to change permissions to rw-r--r--
The permissions do not change , in the directory prop where it is located on the sdcard, it has ;
sdcard/prop --> rwxrwxr-x
sdcard/prop/build.prop --> rwxrwxr-x
I then decided to use the terminal
launched terminal
$su
# cd/sdcard/prop
pwd
/sdcard/prop
chmod 644 build.prop
ls -s
rwxrwxr-x build.prop
What am I doing wrong here?

The SD card is FAT32 - it doesn't really support Unix style file permissions, so using chmod on it won't have much effect.
Regards,
Dave

Dave,
Thanks, that makes sense, I did not think about the disparity.
So, I just backed it up, and used Root Explorer's built in Text Editor.

Related

wpa_supplicant.conf resets permission after boot

I have modified wpa_supplicant.conf and after every reboot of the phone, the permissions are reset:
# cd /data/misc/wifi
# ls -ltr
drwxrwx--- 1 1010 1010 2048 Sep 2 18:27 sockets
-rw-rw---- 1 0 0 744 Sep 3 06:15 wpa_supplicant.conf
In order for wireless to work I need to reset perms to 666 as Wifi does not switch on:
/SettingsWifiEnabler( 3196): Received wifi state changed from Unknown to Enabling
E/WifiHW ( 1422): Cannot access "/data/misc/wifi/wpa_supplicant.conf": Permission denied
E/WifiHW ( 1422): Wi-Fi will not be enabled
How can I make the permissions stick?
try to booting into recovery go to console ,then
mount /data
chmod 666 /data/misc/wifi/wpa_supplicant.conf
may or may not work
ubernicholi said:
try to booting into recovery go to console ,then
mount /data
chmod 666 /data/misc/wifi/wpa_supplicant.conf
may or may not work
Click to expand...
Click to collapse
I did that a number of times. in recovery mode after chmoding to 666 permissions show as
-rw-rw-rw- 1 0 0 744 Sep 3 06:15 wpa_supplicant.conf
after reboot it shows as
-rw-rw---- 1 0 0 744 Sep 3 06:15 wpa_supplicant.conf
Not sure how to overcome this as it appears that the reboot process changes the permissions back (perhaps a Cyanogen problem - running on 4.0.4??)
if your running cyanogen's rom couldn't you just put the chmod command in the userinit.sh. welll that is if you have a ext partition
Please read stickies before posting. This should be in the Q&A forum.
problem solved by placing the following into userinit.sh. still strange that something changes the permissions and ownership of that file during boot-process.
if [ -d /data/misc/wifi ];
then
busybox chown 1000:1000 /data/misc/wifi/wpa_supplicant.conf;
busybox chmod 666 /data/misc/wifi/wpa_supplicant.conf;
echo "Changed permissions for wpa_supplicant.conf"
fi;
I found this to be working permanently:
The solution was to simply change ownership back to system:wifi
$ adb root
$ adb -d shell
# cd /data/misc/wifi
# chown system.wifi wpa_supplicant.conf
# reboot
Click to expand...
Click to collapse
Found somewhere. Sorry, I've not bookmarked the link.
thank you!
clean copy of wpa_supplicant.conf
Hey all. New to the forum. was wondering if any has an original copy of the wpa_supplicant.conf file for the flytouch2. i was doing some experimenting and fudged it up real good. thanks in advancd
Hey just wanted to thank you for this thread.. saved me a lot of time on a project
stupid ownership.
Thanks. This post helped me too...
Me too. Thanks
Thanks!
I can't believe I never did a search on the XDA forums for this issue, which has been plaguing me for months.
Well actually "plaguing" is probably too strong a word, but it is usually the little annoyances that drive me up the wall way more than the large problems!
that is all
pam
another way to solve
hello,
I've had similar issues after modifiying the file with ES Explorer. The problem is that the app not only rewrites the permissions of the file but also the owner and group. Fortunately the app stores a .bak file so i could "ls-l" the correct file settings.
U should use
chmod 660 wpa_supplicant.conf (by default and not 666!)
and
chown system.wifi wpa_supplicant.conf (sets owner to system and group to wifi)
Good luck!
I've been having simmular problem:
While back I have edited the same file (using ES file explorer app) and ever since then everytime i reboot my wifi wont switch on (instead it just shows an error in status field)
So far solution i had to use is to open the wpa_supplicant.conf file in ES and "edit and save" it... So pretty much even if i type in and erase a random character, and then try to exit ES asks if i want to save. Click yes and go to settings and wifi is switching on no prob...
Does this seem like I should use one of the solutions posted above, or is there some other resolution to my problem?
Im running Gingerbread on HTC doubleshot.
I appreciate any help given!
Thanks in advance.
thank you!
Just wanted to say thank you,

$50 dollars to the first solution to sideloading non market apps

I have a brand new ATT Captive.
I have it rooted.
I am on a MAC.
I am looking for a solution to allow me to sideload no market apps.
First person to post a method that will allow me to complete this will get $50 paypal as soon as I get this completed.
I have tried every solution on this board and spent 3 days trying to do this. Nothing has worked.
I begging someone to please find and post me a solution. I guarantee that I will pay to the first solution to make this possible.
Please help me out.
Don't pay people for it, there's threads all over for how to do it. This is copied from one of those threads.
"Method 2: with Root Explorer
(courtesy of kirbo20)
This is a pretty easy process. I went in to Root Explorer - dbdata - databases - com.android.providers.settings, copied settings.db to my sd card, edited it on my pc with a db editor changed 0 to a 1 next to non market apps. Copied it back to the original directory, rebooted and installed a non market app.
(added by gotfolk)
again using FF plug in..
Click Secure on the left pane
click on install_non_market_apps
click edit
number 3 states value click there and type in 1. hit ok
(/gotfolk)
Please use caution. If you want to make sure the db save properly open it on your sd card before you copy and replace the original. It should open up as a readable table. If it opens up in a txt editor its corrupt. This permanently enables non market apps. You can not toggle it on and off.
( This is a sqlite3 database file, you can find many GUI editors that will be able to handle the editing, including a FF plugin. Search "SQLite" )"
And if you don't want to use root explorer - Use the Android SDK on your mac - it is free.
You have to do your work in the terminal, but it is easy using the ADB Shell to get the file to your SD card, move it to your mac, use Firefox and SQLite manager to change the one value, put the file back, change permissions and you are done.
Most of us are not looking for $50 - just looking for people to use search and give things a try before creating a new post.
I think you can spend $4 very well on Root explorer and enable sideloading apps. And save $46.
2) Downloaded Root Explorer and SQLite Editor. Both of these are paid apps but look like they are worth owning. For instance, you can also use Root Explorer to rename and disable the AT&T bloatware, as an alternative to this method.
3) Using Root Explorer, mount the filesystem R/W and copy /dbdata/databases/com.android.providers.settings/settings.db to /sdcard/settings.db
4) Open /sdcard/settings.db in SQLite Editor
5) Open the 'secure' table
6) Long-hold on record 6, "install_non_market_apps" and select "Edit Record"
7) Change the value from 0 to 1 and save
8) Back in Root Explorer, copy /sdcard/settings.db back to /dbdata/databases/com.android.providers.settings/settings.db
9) I don't remember if I had to reboot or not, but you may as well.
Click to expand...
Click to collapse
Edit: Couldn't find the video with these intructions. Anyways you can download SQLite manager add-on on firefox, open firefox, go to tools->sqlite manager. Have the copied settings.db on your desktop, then open it up with the firefox SQLite manager(just to save you some more money). Once you're there, open up settings.db, go to secure on the left side, and then go to "browse and search" on the menu bar. Right click and edit "install_non_market_apps" and change the value from 0 to 1 like the instruction above. Then do steps 8 and 9. And you do have to reboot.
Sorry if it was confusing lol
doesnt the android central sideloading wonder work in mac?
puttingg said:
I have a brand new ATT Captive.
I have it rooted.
I am on a MAC.
I am looking for a solution to allow me to sideload no market apps.
First person to post a method that will allow me to complete this will get $50 paypal as soon as I get this completed.
I have tried every solution on this board and spent 3 days trying to do this. Nothing has worked.
I begging someone to please find and post me a solution. I guarantee that I will pay to the first solution to make this possible.
Please help me out.
Click to expand...
Click to collapse
max_warheads said:
(additional CHOWN notes added below. If you are getting "chown: unknown user/group system:system" read them!
Ok, we do have a WHOLE other thread that was made a sticky already, but you need to read the WHOLE thing to get all the properly interesting parts. I'll make sure I keep this OP up to date.
The following methods enable side loading and installing of apps onto the captivate, without the need of a program on a computer attached via the SDK. There are multiple methods, and for the most part, these methods that have worked flawlessly for many users here on this forum. We're just collecting them all in one post for speed and clarity.
Methods that assist in loading applications, without modification to the settings (a.k.a still need a computer attached) can be found at the collective wiki, http://samsungcaptivate.wikia.com/wiki/How_to_Sideload
ALL METHODS REQUIRE ROOT & BUSYBOX:
Root your phone, see http://forum.xda-developers.com/showthread.php?t=725555
Busybox : http://www.appbrain.com/app/stericson.busybox
Please, save a clean, un-altered backup copy of this file. To be safe. Rarely does corruption occur, but if it does, it won't be good.
Method 1: From Win7x64, Samsung Drivers, Android SDK installed.
This method uses the tools you already have at hand, as part of the SDK. All instances in code blocks are run inside of the command prompt. You will need to know where you installed your SDK, and the tools directory therein.
Once rooted, go install BusyBox installer from the App Market/AppBrain etc and run it. It will download and install the latest version for you.
From my Win7x64, with USB Debugging ON. Ensure that you phone is UNLOCKED as it the SU app will ask for permission for 'UNKOWN' in the following command.
Connect to PC, and Eject/Safely Remove the SD card, and "Turn off USB Storage" on the phone.
open command prompt, follow along:
Code:
> c:
> cd \android\tools
> adb shell
$ su
# cp /dbdata/databases/com.android.providers.settings/settings.db /sdcard/settings.db
# exit
$ exit
mount the SD cards to the pc,
"USB Connected select to... ", Mount
mine mounted as H:
Code:
> copy H:\settings.db settings.db
> sqlite3 settings.db
~> update secure set value="1" where name="install_non_market_apps";
1 row updated
~> .quit
> copy settings.db H:\settings.db
Eject the drive, safely remove, etc.
"Turn off USB storage" etc, to mount it back to the phone
Code:
> adb shell
$ su
# cp /sdcard/settings.db /dbdata/databases/com.android.providers.settings/settings.db
# chmod 660 /dbdata/databases/com.android.providers.settings/settings.db
# chown system.system /dbdata/databases/com.android.providers.settings/settings.db
# exit
$ exit
> adb reboot
Bam. Done.
Method 2: with Root Explorer
(courtesy of kirbo20)
This is a pretty easy process. I went in to Root Explorer - dbdata - databases - com.android.providers.settings, copied settings.db to my sd card, edited it on my pc with a db editor changed 0 to a 1 next to non market apps. Copied it back to the original directory, rebooted and installed a non market app.
(added by gotfolk)
again using FF plug in..
Click Secure on the left pane
click on install_non_market_apps
click edit
number 3 states value click there and type in 1. hit ok
(/gotfolk)
Please use caution. If you want to make sure the db save properly open it on your sd card before you copy and replace the original. It should open up as a readable table. If it opens up in a txt editor its corrupt. This permanently enables non market apps. You can not toggle it on and off.
( This is a sqlite3 database file, you can find many GUI editors that will be able to handle the editing, including a FF plugin. Search "SQLite" )
Method 3: with Root Explorer & Sqlite Editor & Terminal Emulator
(courtesy of ice3186)
- Open Root Explorer
- Browse to /dbdata/databases/com.android.providers.settings/
- copy settings.db to the root of your sd card ( /sdcard/ )
- Click on the newly copied settings.db in /sdcard/, with SQLite Editor installed, you can open and edit it here.
- Select the "secure" table, and update the value of 'install_nonmarket_apps' from 0 to 1, and save.
- close out of SQLite editor
- copy the modified file ( /sdcard/settings.db ), and browse back to /dbdata/databases/com.android.providers.settings/ and paste
- confirm the overwrite if asked and then open again to confirm it's been changed.
- open Terminal Emulator
Code:
$ su
# chmod 660 /dbdata/databases/com.android.providers.settings/settings.db
# chown system.system /dbdata/databases/com.android.providers.settings/settings.db
# reboot
- reboot phone.
No PC, no Mac, no drivers, no SDK. Viola.
Method 4: Mac & Android SDK
You will see "[sdcard]" through this method...I don't own a Mac so I'm guessing a bit.
This method uses the tools you already have at hand, as part of the SDK. All instances in code blocks are run inside of the Terminal. You will need to know where you installed your SDK, and the tools directory therein.
Once rooted, go install BusyBox installer from the App Market/AppDroid etc and run it. It will download and install the latest version for you.
From a Max OS X, with USB Debugging ON. Ensure that you phone is UNLOCKED as it the SU app will ask for permission for 'UNKOWN' in the following command.
Connect to Mac, and Eject/Safely Remove the SD card, and "Turn off USB Storage" on the phone.
open Terminal, follow along:
Code:
> cd /android/tools
> ./adb shell
$ su
# cp /dbdata/databases/com.android.providers.settings/settings.db /sdcard/settings.db
# exit
$ exit
mount the SD cards to the Mac,
"USB Connected select to... ", Mount
mine mounted as [sdcard]
Code:
> cp [sdcard]/settings.db settings.db
> ./sqlite3 settings.db
~> update secure set value="1" where name="install_non_market_apps";
1 row updated
~> .quit
> cp settings.db [sdcard]/settings.db
Eject the drive, safely remove, etc.
"Turn off USB storage" etc, to mount it back to the phone
Code:
> ./adb shell
$ su
# cp /sdcard/settings.db /dbdata/databases/com.android.providers.settings/settings.db
# chmod 660 /dbdata/databases/com.android.providers.settings/settings.db
# chown system.system /dbdata/databases/com.android.providers.settings/settings.db
# exit
$ exit
> ./adb reboot
Method 5: Android SDK only
Of course, this also requires root and BusyBox.
From the android sdk tools folder in a command prompt:
note: all linux/mac should use './adb' in place of just 'adb', and place quotes on the echo statement between echo and |
Code:
adb shell
su
chmod 666 /dbdata/databases/com.android.providers.settings/settings.db
exit
exit
adb pull /dbdata/databases/com.android.providers.settings/settings.db settings.db
echo update secure set value = 1 where name = 'install_non_market_apps';|sqlite3 settings.db
adb push settings.db /dbdata/databases/com.android.providers.settings/settings.db
adb shell
su
chmod 660 /dbdata/databases/com.android.providers.settings/settings.db
chown system.system /dbdata/databases/com.android.providers.settings/settings.db
reboot
NOTICE
You must chown the settings.db file and reboot once it is back in its original location. If you do not, you will not be able to alter settings such as WiFi,GPS, default Ringtones, etc. It's also highly likely that you may wish to chmod to 660 (-rw-rw---), so I've tacked that in here and above.
Code:
> adb shell
$ su
# chmod 660 /dbdata/databases/com.android.providers.settings/settings.db
# chown system.system /dbdata/databases/com.android.providers.settings/settings.db
# exit
$ exit
> adb reboot
Chown Note
In the event that you are getting "chown: unknown user/group system:system" please try 1000.1000 as this has been reported to work on several of the samfirmware-released roms that fail with this message.
Absolutely do not use someone else's settings.db unless you specifially make it a point replace android_id with your android_id!
[
Sent from my AOSP Captivate
Click to expand...
Click to collapse

How to get root access from kernel, with no busybox and not building any sources

Hi folks,
On my way trying to get 10 usefull posts to access the developers forums, I have writen this easy tutorial. xD
THIS IS FOR S5830i DEVICES. init.rc used belongs to S5830i ramdisk
Whats all about? Well, in this tutorial I will so you how to get root access directly from Kernel only modifing init.rc and adding su to tmp folder.
THIS IS NOT UNSECURING THE BOOT.IMG TUTORIAL
Question: Axyllum why are you posting this, if there are so many tutorials on how to do this for other devices?
Answer: Simple, as you all ready imagine, partition for boot.img is just 5MB Oh my god.
Then, if my boot image is all ready 4.28MB, how can I use a busybox thats 836KB (I compiled a busybox with mount, cp, mkdir, chmod and chown that is the minimum to get root: image = 836MB). Cant use this beacuse I exceed total mounting point size.
Kernel + ramdisk = 4.28MB if you pull stock boot.img from your device.
Minimum busybox explained before = 836KB
SU image 25KB to 86KB depending on the su image you use.
This makes a total of: 5.2MB. Try to flash it. It fails? Yes, you exceeded the mounting point size.
And the solution? Follow my tutorial.
Abilites you will need to follow the turotrial:
Know how to: Un pack & repack boot.img
Know how to: Decompress Ramdisk and compress it back. (to get the famous newramdisk in many many tutorials) newramdisk is just a name, you can compress back to any name, for example axyllumramdisk or yourramdisk or how ever you want to call it.
Asuming you know how to do the explained above and after my wierd chat, lets gooooo:
1. Open init.rc in your favourite text editor.
2. Go to this line in init.rc:
mount rfs /dev/stl9 /system check=no
You should see this:
mount rfs /dev/stl9 /system check=no
mount rfs /dev/stl9 /system ro remount
Got it? lets go to step 3.
3. Overwrite both lines with this:
mount rfs /dev/stl9 /system check=no
mkdir /system/xbin
copy /tmp/su /system/xbin/su
chown root root /system/xbin/su
chmod 06755 /system/xbin/su
mount rfs /dev/stl9 /system ro remount
Make sure you are not overwriting other lines or your ramdisk could not work.
4. Paste SU image file to tmp folder. Make sure SU image has execute permissions.
5. Compress back ramdisk (the famous newramdisk).
6. Repack boot.img
7. Flash it.
8. Restart device.
9. Download superuser.apk and busybox form market and.... there you go you made your kernel with root access and no need of a busybox.
Ok, this was simple, but i imagine more than one will like to know what we did.
I'll explain:
As we cant add a busybox, how the hell am i going to mount system rw, mkdir xbin, cp su from tmp to xbin, chmod / chown permissions?
I started reading the init.rc file (i was bored and my wife wanted to go shopping --> no way i have an init.rc file to mess up with), and I saw many mkdir, copy, chmod etc... commands. (Opened a beer)
So i thought, great, there is all ready a busybox with the least i need to make this. Then why dont i use this preinstalled commands?
And i did this:
mount rfs /dev/stl9 /system check=no --> first I checked this, this instruction is where init.rc mounts system. At this point system is mounted RW.
mkdir /system/xbin --> Then as system is rw, I will create xbin folder. how? with mkdir comand.
copy /tmp/su /system/xbin/su --> Great I did not find a cp command, but found a "copy" command someware in init.rc. Search for it, you will see its used. Then why dont I use it to copy SU in tmp folder to the just created xbin folder? It worked.
chown root root /system/xbin/su --> Owner of su in xbin is: yes, root.
chmod 06755 /system/xbin/su --> Set the right permission to su. You need to chmod with 06755. --> 09364, 66666, 83823 will not work looooolll just a joke i imagine you all ready know what setting permissions is all about.
mount rfs /dev/stl9 /system ro remount --> Remount system with ro (this is the read only remount command).
I dont know if there are any other tutorials doing this, this way, i just did it my self. I Found tutorials on doing the same, but busybox, and .sh script and su were needed. To much for our small boot.img partition.
Enjoy.
Tip, dont mess your init.rc if you do not understand it.

[Q] Graffiti for Android

Has anyone gotten Graffiti for Android working? I found the apk online and put it in /system/apps but that didn't seem to pop up the option in keyboard settings in Nook Color Tools
If your Settings.apk does not have it, you have to manually enable an IME.
For instance, to add my NullKbd.apk
Code:
# cd /data/data/com.android.providers.settings/databases
# sqlite3 settings.db
sqlite> update secure set value='com.android.inputmethod.latin/.LatinIME:[b]com.temblast.nullkbd/.NullKeyboard[/b]' where name='enabled_input_methods';
sqlite> .q
#
If you have sqlite3 on your Nook you can do it in place.
If not, do an ADB pull, sqlite3 on your desktop, ADB push.
Renate NST said:
If your Settings.apk does not have it, you have to manually enable an IME.
For instance, to add my NullKbd.apk
Code:
# cd /data/data/com.android.providers.settings/databases
# sqlite3 settings.db
sqlite> update secure set value='com.android.inputmethod.latin/.LatinIME:[b]com.temblast.nullkbd/.NullKeyboard[/b]' where name='enabled_input_methods';
sqlite> .q
#
If you have sqlite3 on your Nook you can do it in place.
If not, do an ADB pull, sqlite3 on your desktop, ADB push.
Click to expand...
Click to collapse
That's pretty cool.. didn't work for me though. Probably because I don't exactly know what the package name is. (extracting it gave me gibberish). In any case, it turns out the the solution was really simple..
1.put the apk in system/app
2. reboot
3. select keyboard from nook color tools
It was step 2 I was missing.
You can install keyboards as a regular app, you don't need to put them in /system/app
To find an activity or service name:
Code:
ls -l /data/app
That gets you the package name.
To get the trailing part (the activity or service) you can use apktool d and look at AndroidManifest.xml

[mod][6T] init.d / services.d framework using Magisk [linux]

This thread will allow you to set up init.d (and services.d) scripts on your phone so they can run at boot time.
Prerequisites
- understanding of what "init.d" scripts mean ...
- your phone must be rooted (see https://www.xda-developers.com/oneplus-6t-unlock-bootloader-root/)
- you must have a working Magisk (see https://forum.xda-developers.com/apps/magisk)
- linux knowledge (I am not a Windows guy but instructions below should easily apply to Windows / PowerShell)
- adb knowledge
If this scares you, stop reading and go play with something else.
Attached zip file contains
- a magisk.img file
- a directory with init.d scripts
- a directory with services.d scripts
You can use the scripts provided or not use (some) of them, or write your own.
What's the difference between init.d and services.d scripts?
The idea is to have 2 directories on your phone with scripts:
Code:
/system/etc/init.d/
/system/etc/services.d/
The init.d scripts are run early in the boot (when Magisk initializes). The scripts in /system/etc/services.d/ will run a bit "later", to be precise: when sys.boot_completed = true.
Important warrning: even when sys.boot_completed = true, this does NOT guarantee that /sdcard is mounted. Your script can "sleep" until /sdcard is mounted if it relies on things on /sdcard. See for example the code in /system/etc/services.d/LS99maxvolumewarning which will show how you can do that.
Scripts in init.d should NOT rely on any of the file systems being mounted !
The framework will run all scripts in parallel. So be careful that you do not write scripts which depend on eachother!
The framework will run all scripts as background processes so that they do not hinder the normal boot of your phone.
Prepare the basic setup
To use the scripts (or your own), you must first create the directories init.d and services.d; to do that open a linux shell and do:
Code:
> adb shell
$ su
# mount -o rw,remount /system
# mkdir /system/etc/init.d/
# mkdir /system/etc/services.d/
# chown 0.0 /system/etc/init.d
# chown 0.0 /system/etc/services.d
# chmod 755 /system/etc/init.d
# chmod 755 /system/etc/services.d
# sync; exit
Putting the scripts on your phone
Download the attached zip file (initd.zip); create a directory in your linux file system and unzip, e.g.
Code:
> mkdir mydir
> cd mydir
> unzip ~/initd.zip
> adb push init.d/ /sdcard/
> adb push services.d/ /sdcard/
> adb shell
$ su
# mount -o rw,remount /system
# mv /sdcard/LS00* /system/etc/init.d/
# mv /sdcard/LS99* /system/etc/services.d/
# chown 0.0 /system/etc/init.d/*
# chown 0.0 /system/etc/services.d/*
# chmod 755 /system/etc/init.d/*
# chmod 755 /system/etc/services.d/*
# sync
# exit
$ exit
Installing the magisk image on your phone
First important remark: I need to turn this really into a proper magisk "module" but I need to study that first. Open a linux shell and do:
Code:
> cd mydir
> gunzip magisk.img.gz
> adb push magisk.img /sdcard/
> adb shell
$ su
# cd /data/adb
# mv magisk.img magisk.img.orig
# cp /sdcard/magisk.img .
# chown 0.0 magisk.img
# chmod 644 magisk.img
# sync
# exit
$ exit
That's all !!! If you now reboot your phone your init.d and services.d scripts will run.
How can I tell this is working?
Each script has a log file in /data/; whose name is LS00 (for init.d) or LS99 (for services.d) appended with the name of the script. That log file is passed as "$1" into the script and the script code can write to this log file using:
Code:
LOGFILE=$1
echo "Hi I am writing to the log" | tee -a $LOGFILE
To check that the log files are there, open a linux shell and do:
Code:
> adb shell
$ su
# ls /data/LS*
And you should see something like:
Code:
16 /data/LS00blockdev 4 /data/LS99bootclean 4 /data/LS99maxvolumewarning 4 /data/LS99sysctl
4 /data/LS00governors 4 /data/LS99callrecording 4 /data/LS99network 4 /data/LS99trimcaches
4 /data/LS00kerneltweaks 4 /data/LS99cputweaks 4 /data/LS99overlays 4 /data/LS99turnoffnightmode
4 /data/LS00procgate 4 /data/LS99enablecallrecording 4 /data/LS99remounts 4 /data/LS99workqueue
4 /data/LS00readahead 4 /data/LS99hdparm 4 /data/LS99resetprop
4 /data/LS00resetprop 4 /data/LS99magiskhide 4 /data/LS99sqlite
To check the contents of the log files, do:
Code:
> adb shell
$ su
# cat /data/LS*
And you will see logging info:
Code:
>> Starting /system/etc/init.d/LS00procgate at 19700110-17:21:12
-- remounting: mount -o remount,hidepid=2,gid=3009 /proc
<< Ending /system/etc/init.d/LS00procgate at 19700110-17:21:12
>> Starting /system/etc/services.d/LS99maxvolumewarning at 20181201-07:34:00
-- slept for 4 seconds waiting for /sdcard/Android
-- disabling max volume warning
<< Ending /system/etc/services.d/LS99maxvolumewarning at 20181201-07:33:58
What's next
Write your own scripts (and share them). Note that scripts must be owned by root (chown 0.0) and have 755 linux permissions (chmod) to run.
How does it really work?
No secrets ... magisk.img is actually a magisk module which runs the scripts. To see the inner details, do the following after you have installed the magisk image and rebooted your phone:
Code:
> adb shell
$ su
# ls -l /sbin/.core/img/template/
total 12
0 -rw-r--r-- 1 root root 0 2018-03-12 21:19 auto_mount
4 -rw-r--r-- 1 root root 935 2018-08-06 17:59 post-fs-data.sh
4 -rwxr-xr-x 1 root root 498 2018-08-05 10:11 scriptwrapper*
4 -rw-r--r-- 1 root root 2750 2018-08-11 12:07 service.sh
Magisk will run the post-fs-data.sh first and service.sh later. Check the code of both of these files to understand how init.d and services.d are ran (using run-parts). If you want more details please read: https://topjohnwu.github.io/Magisk/guides.html#scripts.
Disable ALL scripts from running
If you want to disable any script from running do:
Code:
> adb shell
$ su
# touch /data/noinitrd
To undo this and get your scripts running again, do:
Code:
> adb shell
$ su
# rm /data/noinitrd
What do my init.d scripts do?
Code:
LS00blockdev: change properties of block devices (non rotational, no kernel io stats, ...)
LS00governors: set all CPU governers (to schedutil; which is actually the 6T default)
LS00kerneltweaks: a few basic kernel tweaks + stop debug of kernel modules
LS00procgate: protections against the procgate security vulnerability (thanks to @topjohnwu)
LS00readahead: change the readahead amount on logical disk devicesw
LS00resetprop: reset model, brand, manufacturer (only useful if you would want to get your phone appear externally as a Pixel; check the code)
What do my services.d scripts do?
Code:
LS99bootclean: clean junk and log files
LS99cputweaks: improve scaling governor
LS99enablecallrecording: enable call recording (must be done at every device boot)
LS99execonce: a whole series of settings; this is only executed ONCE
LS99hdparm: increase readahead on /system and /data
LS99magiskhide: hide some packages from seeing root
LS99maxvolumewarning: remove the high volume warning (I am not sure this will always work !!!)
LS99network: TCP transmit queue and congestion control
LS99overlays: enable all overlays automatically (if you use substratum then no need to enable them manually)
LS99remounts: improve file system performance of multiple partitions
LS99resetprop: increase memory used by dalvik
LS99sqlite: REINDEX and VACCUM sqlite database files (the script only runs every 3rd day)
LS99sysctl: optimize linux kernel settings and TCP/IP performance
LS99trimcaches: trim android cache files
LS99turnoffnightmode: reset the night mode to OFF (night mode conflicts with dark mode in newer Google apps)
LS99workqueue: tune kernel work queue
Thanks man I have been trying to get boot scripts to run.
jacksummers said:
Thanks man I have been trying to get boot scripts to run.
Click to expand...
Click to collapse
excuse me for the ignorance, but what is the use of this mod?
Sent from my [device_name] using XDA-Developers Legacy app
isoladisegnata said:
excuse me for the ignorance, but what is the use of this mod?
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
At the end of OP he's got a summary of what the different scripts do.
I am stuck here > unzip ~/initd.zip
It keeps saying:
1|OnePlus6T:/mydir # unzip /initd.zip
unzip: can't open /initd.zip[.zip]
Any ideas I extracted initd to the directory where my platform tools are and where I do my system updates am I supposed to extract it somewhere else? How do I create a directory in my linux shell using windows cmd promts?
kirschdog1 said:
I am stuck here > unzip ~/initd.zip
It keeps saying:
1|OnePlus6T:/mydir # unzip /initd.zip
unzip: can't open /initd.zip[.zip]
Any ideas I extracted initd to the directory where my platform tools are and where I do my system updates am I supposed to extract it somewhere else? How do I create a directory in my linux shell using windows cmd promts?
Click to expand...
Click to collapse
Looks like a simple typo "/initd.zip" implies that the file is located in the root directory. "~/initd.zip" would be in your "home" directory. Since I don't know if "/mydir" is defined as your home directory and presuming initd.zip is located there try "unzip /mydir/initd.zip" (no quotes).
Still not working
Base2 said:
Looks like a simple typo "/initd.zip" implies that the file is located in the root directory. "~/initd.zip" would be in your "home" directory. Since I don't know if "/mydir" is defined as your home directory and presuming initd.zip is located there try "unzip /mydir/initd.zip" (no quotes).
Click to expand...
Click to collapse
1|OnePlus6T:/ # cd mydir
OnePlus6T:/mydir # unzip ~/initd.zip
unzip: can't open //initd.zip[.zip]
1|OnePlus6T:/mydir # unzip /mydir/initd.zip
unzip: can't open /mydir/initd.zip[.zip]
Any ideas? How to get this working? I tried both commands to no avail.
kirschdog1 said:
I am stuck here > unzip ~/initd.zip
It keeps saying:
1|OnePlus6T:/mydir # unzip /initd.zip
unzip: can't open /initd.zip[.zip]
Any ideas I extracted initd to the directory where my platform tools are and where I do my system updates am I supposed to extract it somewhere else? How do I create a directory in my linux shell using windows cmd promts?
Click to expand...
Click to collapse
You have to create the directory mydir on your linux machine, not on your phone.
Base2 said:
Looks like a simple typo "/initd.zip" implies that the file is located in the root directory. "~/initd.zip" would be in your "home" directory. Since I don't know if "/mydir" is defined as your home directory and presuming initd.zip is located there try "unzip /mydir/initd.zip" (no quotes).
Click to expand...
Click to collapse
No, not a typo. mydir is on your PC, not on the phone !
foobar66 said:
No, not a typo. mydir is on your PC, not on the phone !
Click to expand...
Click to collapse
How do I create the directory? I'm using a windows device using adb command prompts?
kirschdog1 said:
How do I create the directory? I'm using a windows device using adb command prompts?
Click to expand...
Click to collapse
Search how to create directories in PowerShell ... I am not a Windows guru :crying:
foobar66 said:
Search how to create directories in PowerShell ... I am not a Windows guru :crying:
Click to expand...
Click to collapse
Ok thank you.ill hold off as it appears to be above my pay grade.
foobar66 said:
You have to create the directory mydir on your linux machine, not on your phone.
Click to expand...
Click to collapse
This won't work anymore as magisk doesn't use magisk.img anymore

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