Firmware 5.8.8, 5.8.9-plus jailbreak

[knc1]

The updater does not have any 'undo' ability.
What you end up with is a shortened (corrupt) file system.
See: https://www.mobileread.com/forums/sh...d.php?t=287032
Which happened due to an unintended failure.

[dhdurgee]

Originally Posted by knc1

The updater does not have any 'undo' ability.
What you end up with is a shortened (corrupt) file system.
See: https://www.mobileread.com/forums/sh...d.php?t=287032
Which happened due to an unintended failure.

Ahh, but isn't that one of the situations that will result in a boot of the diag partition? Perhaps this might offer a path forward if true.

Dave

[knc1]

Originally Posted by dhdurgee

Ahh, but isn't that one of the situations that will result in a boot of the diag partition? Perhaps this might offer a path forward if true.

Dave

At one time, the system would fall back to the 'diags' system.

At other times, it would switch to the "Recovery System" that is part of the initramfs code (ram memory system that runs after u-boot prior to either 'main' or 'diags').

Since the initramfs is statically linked into the kernel, that makes it GPL-2, just like the kernel.
But that does not mean that Amazon posts the source code (they don't).

So it will have to be disassembled (IDA Pro maybe?).
Here is the step-by-step of how to get the initramfs binary:
https://www.mobileread.com/forums/sh...d.php?t=262234
And the extracted sample from 5.6.1.1 is attached.

The procedure remains the same, only the names change with the version change.

PS: If anyone ever did disassemble it, nothing was posted here about it and I never heard any response on the subject.