How to enable logging on Chromebooks

[Henrik Andreasson]

I am used to working with DVLOGs in Chrome. Let's say I want to check DVLOG(1) in /media. I then do:

ninja -C out Debug/chrome -j 100

./out/Debug/chrome --enable-logging --vmodule=*/media/*=1

and read the printouts in my terminal.

How can I do the same on my Pixel?

- I assume I must build a Debug version of Chromium for Chrome OS.

- Download a debug image (or test image?)

- Modify chrome_dev.conf like so:

--enable-logging

vmodule=*/media/*=1

..and then what? How can I check the output logs?

[Mike Frysinger]

you will need at least a dev image on the device

then you can use simple chrome to build & deploy your custom chrome

then you would edit chrome_dev.conf to include your custom flags.

i've updated the wiki page to cover all of this as well as where log files go:

http://dev.chromium.org/chromium-os/how-tos-and-troubleshooting/building-chromium-browser#TOC-Debugging

-mike

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