- Google's recovery manifest (from linux_recovery.sh) can pull a recovery
image for a specific product, I have yet to find depthcharge as a payload
- Obviously I haven't pulled all of the recovery images, but have looked
at ~10
- those interested in recovery image, /usr/sbin/chromeos_firmwareupdate
--sb_extract yields a bios.bin file that cbfstool can parse (i.e. is a coreboot.rom file)
All non-x86 Chromebooks that use coreboot also use depthcharge. What exactly do you mean when you say you can't find it? If you parse bios.bin with cbfstool print, you should see a "fallback/payload" file... that is depthcharge. (coreboot always requires the payload to just be called "payload" in CBFS, regardless of what it actually is.) You can extract it and run 'strings' on it to confirm.