su (short for Switch User) is a binary executable. It's used by Android and other *nix based systems to allow a process to change the user account it is associated with. The reason it's important from a rooting standpoint is that su without any other parameters will switch to the root user, meaning that processes that require root permission for their ...
Root access (typically) requires several components that work in concert with one another. A somewhat simplified view of what you need is:
A native su binary. This can be invoked from the command line or from applications. It is what actually performs the act of switching users, and grants a process root permission.
A "gatekeeper" application, that ...
Root permissions and kernel mode are not the same thing. Programs with root access can access part of the kernel, but root is not the kernel itself.
The Android (and Linux) user model has a set of users, each part of a set of groups. These groups are used to manage which users are allowed access to what. For example, in Linux you could set up all printer ...
The source code for Superuser is available on github, the main author of Superuser are Adam Shanks (ChainsDD) and Koushik Dutta (koush, also author of Clockwork Recovery).
Koushik Dutta explained in his blog how Superuser.apk works; note that the post is from the very earliest incarnation of the Superuser app, a lot of things have changed since then and ...
On this question, you might want to check an article on GetAndroidStuff called Superuser vs SuperSU. Quoting:
SuperSU improves everything about Superuser and adds more options. The free version offers faster notifications, there is possibility of disabling them for each app and a new interface, attractive and easy to handle. In addition, according to ...
Most superuser apps don't allow adb su access by default. Depending on the app you used the option may vary in location, but basically you need to go to settings in the superuser app and change it from "apps only" to "apps and adb." This should allow you to use su in an adb shell.
On Nexus devices, at least: CF Auto-Root works by unlocking the device's boot loader via fastboot (if it isn't already unlocked), then sending the device a custom boot image (kernel and ramdisk) that it should run instead of booting from the built-in system or recovery partition. It's analogous to booting your PC from a CD or USB drive instead of from the ...
The Superuser website explains it as such:
Ghost mode – Hide Superuser from your app tray and home screen. With
ghost mode activated, the only way to launch it is by dialing a secret
code into the dialer. The default secret code is *#*#787378737#*#*,
but it can be set to whatever you want. Note that this feature will
probably be disabled if your ...
Just re-root. Your bootloader is still unlocked, so nothing is preventing you from doing so. The Nexus Root Toolkit should do the heavy lifting for you if you want (just press "Root"). Manual steps would be:
Download a custom recovery, like ClockworkMod, and save it to your computer
Download the Superuser/su package for ARM and copy it to your phone
When coming from Linux/Unix, you may be confused because su == root, and that is also true on Android, but with a small addition:
A 'rooted' android device has a setuid root 'su' binary to allow a process to get root, but the version typically used on android doesn't allow just any process to use it to get root. It uses an android intent to communicate ...
The build you flashed appears to have an associated XDA thread. The first post of that thread (by the ROM's creator) contains this a little ways down:
- Flash this if your are having root issues -
I'd start there, and see if it resolves the problem. You should just need to download the zip ...
Run the SuperSU app. If you’ve uninstalled it for whichever reason, all you need to do is Reinstall it from the Google Play Store.
Click on the Settings tab on the top right corner, and then click Full Unroot. Confirm with 'Continue'.
Once this operation is done, which takes a few minutes, you can reboot your Android.
Uninstall SuperSU.( If Exists.....)
Basically it is possible to control/watch over every data transferred by just analyzing the traffic. To do so you could use something like Wireshark, but then a lot of Internet traffic today is encrypted, which would make it impossible to gain anything from it.
To access the data of connected devices would require certain other tools and would very likely ...
Yes - if you grant it root privileges, it can Theoretically access any other apps data ( granting / denying is by "Superuser or Su" which is used to manage applications which are allowed to gain root access). That is a con of rooting. But if the data is encrypted it shouldn't be able to unless it is a rogue app which is capable of doing so
Aside, if you ...
Android has a chain of signature verification that (by default) protects your device from being hacked or having an unofficial image installed. Recovery images, updates, and OS images all have to be signed. The bootloader verifies that the recovery is signed by the manufacturer's key, and the recovery in turn verifies that the OS image (and any updates you ...
I have had this issue and there are 3 ways to try to get around this.
You will need a custom recovery to attempt 1. or you can use Odin alternatively for 2. below. The superSU binaries are often (but not always) installed via recovery and the app itself gives this option.
When superSU asks you to update the binaries, rather than select 'Normal' select '...
You can see the advantages from the developer's home page.
Superuser Elite is the Premium version of Superuser. It unlocks several premium features within Superuser, including:
PIN Protection – Secure your Superuser prompt with a PIN number so that nobody but you can grant Superuser rights to apps
Access timeout – Allow an app to maintain Superuser rights ...
Because you still have a working CWM, you can just reflash it.
There are 2 competing implementations:
SuperSU from Chainfire
Superuser from ChainsDD
Most rooting utilities install the latter, so you're safe to also flash this.
You are rooted. AFAIK Samsung bootloaders are already unlocked, you only need to flash the recovery to get the "root"
Now for the problem.
Go to settings->about phone and tap the build number 7 times to enable developer options. Then go to settings->developer options and there you should be an option similar to root access. Make sure you select Apps ...
The reason the command isn't working for you is because "su" is a binary that gets installed by rooting your device. Without a proper root you have no "su" command.
In order to use the dirtycow exploit you have to compile the binary for your device's architecture.
Head over to https://github.com/timwr/CVE-2016-5195 and download or git clone the files.
Most recoveries don't work in root mode - and root mode cannot be acheived, as the SU binary calls your superuser app to gain permission to use root mode.
As the su binary cannot call the app, it stops you using SU mode.
It could also be due to the fact that the su file used in recovery is the stock su file found in Android, and this doesn't let you switch ...
An unlocked bootloader is the precondition to mod a phone. It's not the same as having root; it just allows you to install a custom recovery and a different boot.img. You need to flash a CWM recovery and a compatible gain-root.zip or just start all over and install a real ROM like CyanogenMod (hope your model's supported)
What you gain from having an ...
There are a few scenarios that might explain what's going on.
Superuser app binaries need to be updated
Open your Superuser app and check for any updates to the binaries. The binary is what gives that Superuser app the right to grant or deny other apps superuser priviliges. If it is outdated or has been replaced by a different binary, you may need to ...
Yup using root is the only way to go.
All other groups or username are locked in userland of Android by a technique known as sandboxing. This is security feature implemented at the core so you will need to rework Android if you still want to succeed.
For setting file permissions, you can use the chmod command. The permissions shown are basically split in 3 parts, each consisting of 3 chars: a triple for the owner, the group, and for "others". Usually, each triple holds definitions for reading, writing, and executing a file; so rwx means "can read, write, and execute", while r-- would say "can only read".
Install custom recovery TWRP(Download link)
Install SuperSU from recovery
also, take a look at this :
[GUIDE] Root XT1032/XT1033 Moto G Running Android Lollipop
just do it with above link instruction.