CODEWITHSUNDEEP
androidfilesystemsstorage
AnasBakez
AnasBakez

Reputation: 1230

is there any limitations in using "/proc/mounts" in android

I'm having a problem with devices that has an external storage (SD card) and internal data storage. Like in Samsung S3 device there are two kind of external storages the SD-card and the internal data storage. The Environment.getExternalStorageDirectory() API do not get both, I have searched the internet and fount that I can read the /proc/mountslike the question

How to get all the mount point information for android device?

My question is can I rely on the /proc/mounts filesystem on all devices and operating systems or there are any limitations? And is there any good documentation about this filesystem?

Thanks for helping.

Upvotes: 6

Views: 2682

Answers (2)

Sam Morris
Sam Morris

Reputation: 2017

Look at /proc/self/mountinfo; it has all the information in /proc/mounts and more (e.g., for bind mounts it tells you the mounted path within the source filesystem).

Upvotes: 1

Dmytro Sirenko
Dmytro Sirenko

Reputation: 5083

/proc is a mountpoint for a Linux virtual filesystem, procfs. It is specific to Linux, therefore works with all Android installations.

The best possible documentation for procfs is its source code, but it requires some familiarity with Linux kernel and C. Also see Documentation/filesystems/proc.txt in the kernel sources, it may contain relevant information for you.

Upvotes: 0

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