How to read logs if phone won't boot

[Delphis]

Hi,

I have been tinkering with a script that runs on boot and I'm frustrated that I cannot tell where the boot process is falling over. I cannot get the phone to boot, so I cannot read any log files. I saw an app that splats dmesg stuff while booting but even that isn't what I want. I'd like to be able to go through the log files but if the only way to get the phone to boot is a data restore, then obviously those logs are lost.

So, all those devs out there, how do you access the logs if your phone will not boot?

I'm a programmer of many years and am used to being able to access debugging information when I program, so I find the 'oh the boot animation just stopped' very annoying. :>

Thanks.

 

[Delphis]

Seriously? Noone? I thought even if it was a dumb question I'd get someone telling me to read up on it somewhere...

 

[JerryScript]

Can you boot into recovery? If you can, you should be able to hook it up to your computer and use adb to access the logs, which I believe are in /dev/log/main or maybe /dev/log/system not sure which.

I haven't set up Eclipse with the Android SDK, but I believe you can get real time logging with it.

 

[Delphis]

Can you boot into recovery? If you can, you should be able to hook it up to your computer and use adb to access the logs, which I believe are in /dev/log/main or maybe /dev/log/system not sure which.

I haven't set up Eclipse with the Android SDK, but I believe you can get real time logging with it.

Ah.. that'd be useful. Yea, I can boot to recovery. I never tried the adb stuff while in recovery. I thought the phone had to be booted to do that. So an 'adb shell' might work, huh? Okay, I'll try that. Thanks

 

[Delphis]

I tried this and when I do 'adb logcat' I get:

/sbin/sh: exec: line 1: logcat: not found

I'm using the Xionia CWMA recovery v1.2518.6 ..

Any hints?

 

[JerryScript]

I'm not sure where the files that run logcat are, but I imagine you would need to mount that partition/folder/whatever in order to access it first.

 

[Delphis]

In the recovery I'm using I mount the /system partition but I still get that error. Anyone else using the Xionia CWMA 1.2518.6 and have adb logcat working?