Super Terminal rewrite system write permissions and possible problems

Connect to the device with adb, enter mount-o remount rw/system, and press Enter. If the apk file is deleted with rm, the following error may be reported during re-installation.

INSTALL_FAILED_UPDATE_INCOMPATIBLE

Google...

Find the cause:

Http://xusaomaiss.javaeye.com/blog/393296

When you install android apk repeatedly, you may encounter the adb install error in the following ways: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE]
This is probably because you did not thoroughly perform the uninstall application in the past, but simply rm/data/app/The following apk file. One remedy is as follows:
Start the simulator and enter the menu
Settings-> applications-> mange
Applications-> select the application-> select "unistall ".
In this way, the apk can be completely deleted and re-installed.
Another method is to set/data/system/packages. delete the corresponding information of the application in xml, restart the simulator, and then install it, because after adb install, it will be in packages. add the corresponding program information in xml.

However, none of them can be used here:
1. widgets are not in the mange applications list;
2. The app information is not found in/data/system/packages. xml, and the modification is troublesome.

Find...

Http://iame.javaeye.com/blog/391455

After creating the apk (signature required), after using adb install xx.apk,
1) The apk file is stored in the/data/app/directory.
2) Add a record to/data/system/packages. xml.
3) if the database is used, a data directory used by apk is added to/data after the first running.

The following methods are available for uninstallation:
1) Elegance: You can uninstall the application by choosing settings> applications> manage applications> application Info> uninstall.
2) Delete the apk directly in the/data/app directory.
Adb shell
Cd/data/app
Rm xxx.apk

This method is not recommended. Only apk is deleted. If there are other directories in the application, such as the database directory/data/xxx/databases/, they are not cleaned up, leaving hidden risks.
3) Hidden:
Adb uninstall package-name (this is not described in the adb help document, but can be used)
What, I don't know package-name? Check whether your AndroidManifest. xml has a required attribute of package, which is specified as package-name.

In PS. android, package and application are not one thing, but they are not clearly explained. Can you understand it like this:
Package is a physical concept, and application is a logical concept in the runtime?

OK. Try:
F: "publish> adb uninstall com. anrdroid. test
Success

Deleted successfully, and then installed:
[02:48:45-battery] semi Ming sync
[02:48:45-battery] Automatic Target Mode: using device 'ht843gz03305'
[02:48:45-battery] Uploading battery.apk onto device 'ht843gz03305'
[02:48:45-battery] Installing battery.apk...
[02:48:49-battery] Success!
[02:48:49-battery] "battery" bin "battery.apk installed on device
[02:48:49-battery] Done!