Read logs from recovery

Question

I want to read logs of Android devices having stuck at the boot logo, but I don't have ADB access.

Is it possible to read logs displayed by logcat in recovery by mounting /system partition?

A more recent answer was given here by using pstore: https://android.stackexchange.com/questions/213336/how-can-i-enable-last-kmsg — Rob R, Jan 26 '21 at 20:24

score 4 · Accepted Answer · answered Aug 25 '14 at 12:05

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The files (if they are considered as such) to which logs are written by the device are not in /system but in /dev/log.

These "files" are reset at every boot, so unless the device you have has a boot-time script that automatically saves logs to a file in, say, /sdcard, there is sadly no way to retrieve the logs you want while in recovery.

answered Aug 25 '14 at 12:05

dantis

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While true, this doesn't tell the whole story because there is at least one way to see it regardless of it being saved: http://forum.xda-developers.com/android/apps-games/liveboot-t2976189/post57570477 – cregox Sep 28 '15 at 00:41

score 0 · Answer 2 · edited Jan 26 '21 at 18:54

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With TWRP, going Advanced → Copy Log could be a solution.

edited Jan 26 '21 at 18:54

Andrew T.

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answered Jan 25 '21 at 18:28

Poldo22

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Read logs from recovery

2 Answers2