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2
votes
1answer
568 views

How can I enable last_kmsg?

I'm trying to diagnose a random reboot on LineageOS 14. last_kmsg is not in /proc, nor it is in /sys/fs/pstore/console-ramoops. EDIT: ~# mount | grep PSTORE ~# mkdir /mnt/pstore && mount ...
1
vote
1answer
241 views

Why files/directories under Android's root filesystem don't change across different version updates?

I compared 2 devices; one running Android v5.1.1 and other v9.0. So I noticed that files under /proc are same in both. Can anyone explain why there is no difference even though OEM's are different and ...
1
vote
1answer
434 views

What is the difference between File based encryption and Full disk encryption. Can someone explain in brief

Can someone explain what is difference between File based encryption and Full disk encryption. I had gone through Android Developer Page but it is not clear. Can someone explain with examples.
14
votes
1answer
349 views

Are there any Google devices that support capabilities in their default kernel?

If I systemless root (no modification done to /system partition) a Nexus device, would I be able to able to set capabilities on executables without changing the original kernel binary ? I often want ...
2
votes
1answer
612 views

linux kernel not seen from android filesystem?

I'm reading 'embedded linux' and in chp.6 "filesystems" there is a figure that I do not understand. here it says that the 'linux kernel' is not seen from android filesystem. This give me some ...
2
votes
1answer
211 views

Why is TRIM not supported on encrypted “/data” partition?

I have a rooted Lenovo A369i. I use LagFix (fstrim) to TRIM partitions. Previously it was working well with /data but after I encrypted my phone it doesn't. I decrypted my phone by formatting. But now ...
1
vote
1answer
377 views

Is Android FAT / FAT32 implementation power failure resilient?

Does the android FAT/32 implementation handle sudden battery removal? I know that Symbian's 'Rugged FAT' (efat32.fsy) and Microsoft's T-Fat implement this, but I've not been able to find any ...
0
votes
1answer
3k views

Programmatically, how does “rooting” a device enable access? [duplicate]

From a layman point of view, one would say, "Oh, I'm unrooted so I am blocked and access is not allowed." I want the programmatic point of view; telling me how an unrooted device doesn't have access ...
2
votes
1answer
6k views

Why is EXT3 not supported on Android?

Android uses the Linux kernel instead of some "Android kernel", so why is ext3 not supported on Android 2.3?
4
votes
2answers
2k views

Why are some files under /proc are universally readable?

Why are some files under /proc are universally readable by anyone using adb? e.g. /proc/<pid>/statm /proc/<pid>/maps /proc/<pid>/smaps We can even cat the content of these files, ...
1
vote
2answers
6k views

Is there any userspace NFS client for stock android kernel(Galaxy Tab)?

I have tried kernel-mode things but it is not going to work. Actually i've reached my limit for seeing errors in one day: mount: unknown filesystem type 'nfs' mount.nfs: No such device and many ...