I've been trying various methods on getting some kind of debugging log from 
one of these three phones as they boot up.

I've read that the "init" process produces a boot log, and some kernel 
messages are produced and can be found via "strace" and such.  However, 
does this mean that you can only access these phone logs (from boot mode 
onward) if the phone makes it to a stable state?

What if the phone crashes during the "Google" splash-screen?  Is there any 
way to get some kind of boot log or error log or messages from the phone to 
the terminal or to an output file as it boots up?  How far does the phone 
need to get in the boot process before any kind of log could be accessed?

When the kernel is loaded into memory after the main bootloader stage, does 
it produce logs that can be accessed?  That is, it does not just simply 
produce log messages that are only found in the phone's file system but 
somewhere perhaps on the computer the phone is plugged into via USB.  Is 
there any way to configure this if it doesn't do so anyway?

Thank you.

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