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Old 03-20-2020, 08:32 PM   #8
knc1
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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 edrex View Post
Just noticed this thread.

I'm very interested in working to get a newer kernel booting on PW3, and would like a method that allows testing kernels with low risk of bricking.

I hadn't heard of idme until now, and didn't know kindles had fastboot.

@WaseemAlkurdi Is this the same fastboot from Android world?
Can I use the standard android fastboot util to send an image with fastboot boot?
Quote:
Originally Posted by edrex View Post
oic, fastboot requires soldering to usb serial pads.
*) It is a "Kindle special" variety of fastboot.
It is available on this forum. I do not have a link to it.

*) What size image?
The "Kindle fastboot" can not handle the size of the 'main' file system image.

*) Fastboot boot: Haven't heard it mentioned, give it a try.
Let us know the details of your new brick.

*) Hot soldering to serial port is not requited.
You do have to connect to the serial port, but the serial port thread contains at least three ways to avoid use of hot solder.

*) Low risk testing: both the startup of the Kindle's u-boot and of the Kindle's kernel support network filesystems.
That is: boot from an external source, if it breaks, don't boot from an external source next time.
That is the way 'real' embedded devices are developed.

Last edited by knc1; 03-21-2020 at 03:14 PM.
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