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Old 05-05-2017, 08:27 AM   #13
knc1
Going Viral
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Posts: 17,212
Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by encol View Post
Knc1, you think it's possible to boot from a bootable USB stick, with some Linux distribution on it?
That is pretty ambitious, I have no way to even guess.

That sounds more like a NFS boot case (the Kindle's do (should) network boot), the newer (than PW1) devices either over USB or WiFi.
At least from the initramfs (the code to setup the root filesystem over NFS is in the code).

Booting from USB stick would be done by the SoC's rom code.
I.E: The first thing loaded and run would be another boot loader (u-boot, red-boot, etc.).
The USB boot file that Buildroot can build, builds u-boot to do the next stage loading.
See: Buildroot.org
(And reading a lot of the ARM reference manual wouldn't hurt your prospects.)
I am pretty sure it is attached to that "KT2 exposed" thread.
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