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I have my Nexus One connected with the USB.
When I visit the File Explorer of the DDMS, if I click on the “data” folder the little plus near the name “data” disappear for 2-6 seconds and then reappear but the contenct of the folder “data” is not showed!
Here some other information:
the folder data has permissions drwxrwx–x
the OS of my PC is Windows XP
Eclipse v. 3.5.2
Android SDK 1.6
If the adbd daemon is running as root, you can browse /data using adb-based tools such as the DDMS file explorer or the adb shell.
If it’s not, you can access a few files under /data and its children directly by their full path names, but you cannot browse (or ‘cd’ to) most of the folders, including /data itself.
“rooting” as an unofficial process means varying things and produces varying results – ie, adbd may or may not run as root.
If ro.secure is set to 0 in the startup scripts such as /init.rc, adbd will run as root, but that may not be a good idea on a user device. It is set to 0 on the emulator, and that’s why you can browse /data there.
Finally, note that /init.rc is usually contained in a ramdisk image packed onto the kernel – you can’t really edit it on the phone but would have to modify the image offline, re-attach it to the kernel, and re-flash them. Though if you have some sort of working ‘su’ hack you may be able to change the property temporarily and restart adbd.