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Old 04-23-2013, 04:03 PM   #1
AeroFengBlade
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Need Kindle Touch firmware 5.3.2.1 kernel

I screwed up a lot... So here’s the story:

I compiled the Kindle Touch 5.1.2 Linux kernel (linux-2.6.31, I believe), and I flashed the uImage using fastboot to my Kindle. Of course, I forgot to backup my kernel, forgot to extract and compile the initramfs, forgot about kexec, forgot that I was running 5.3.2.1, and forgot that I downloaded the source code a few months ago.

Can someone send me a backup of their kernel? I’ll use it for extracting the initramfs and restoring. Use geekmaster’s getkernels script: http://www.mobileread.com/forums/sho...65&postcount=1

Thanks a lot!

By the way, I also unpacked the 5.3.2.1 update file using kindletool as an effort to get the kernel, see screenshots for details. In the folder 15, there are 4 new update files following the pattern of update-15-*.bin. When extracted, each contains a file called update-kernel.tar.bz2 that in turn contains an uImage patch. I do have the 5.1.2 kernel, so any advice on how to apply these patches is appreciated.
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Last edited by AeroFengBlade; 04-23-2013 at 04:09 PM.
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Old 04-23-2013, 06:16 PM   #2
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KUBRICK it back to 5.1.2 - then update to where you screwed up.

PS: Haven't you ever heard of "netboot" (network booting untested firmware) ?
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Old 04-24-2013, 03:19 PM   #3
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Quote:
Originally Posted by knc1 View Post
PS: Haven't you ever heard of "netboot" (network booting untested firmware) ?
I've PXE booted before, how do you netboot firmware? Sounds like a fun project?
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Old 04-24-2013, 03:43 PM   #4
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I've PXE booted before, how do you netboot firmware? Sounds like a fun project?
The same in principle -
UBoot can load executables from the network (you'll need a serial port connection to talk with UBoot).

This can be a Kernel, a Kernel with an initial filesystem, or both (two images, Kernel and Filesystem).

In addition, the Kernel can netboot its filesystem (note in the stock Kindle kernel cmnd line the: ip=0 argument? That turns off that feature.)

Step-by-step directions? Still way down on my to-do list.
Maybe someone else will write it up before I get around to it.
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Old 04-24-2013, 10:55 PM   #5
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I'm grateful for all the work and explanations you and many others have given to the Kindle projects.

Thank you.

maybe I'll even look into this further sometime...
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