Hot answers tagged file-system
The Android system does not have the conventional /etc/passwd storage for users and groups. In android, user and groups are used to isolate processes and grant permissions. The Android system creates a user per application when an application gets installed. Hence application data files are stored in /data/data/<app-name>/, and are read-writable only ...
Since this commit notification policy settings were migrated from the separate /data/system/notification_policy.xml file to the generic AppOps subsystem. Now they are stored in /data/system/appops.xml together with other AppOps settings.
The best way is relotive and dependant on not just hardware but also your desire to modify and or automate. For one shot tasks I'd suggest ADB & for special projects and automation I'd suggest Casual or Xposed. For messing with stuff I probably shouldn't I'd deffenatly start with Xposed if I where you because the settings can be non-perminate. To help ...
If I'm not mistaken you can force android to fsck both the internal and external storage on reboot by doing the following depending on your rom. run terminal app and type su touch /forcefsck Then reboot source: http://forum.xda-developers.com/showpost.php?p=57027579&postcount=20
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