Using the sticky Android guide, I was able to get a chroot on my jailbroken Kindle.
However, running pacman -Syu breaks out of the chroot: http://pastebin.com/2V6ZF1rn
[edit] I can reproduce this on my laptop using qemu: http://pastebin.com/CybubRni
The image is also from before the systemd and usrlib change
If I get this working, a next step could be to compile a kernel and use fastboot to have a native Arch installation. Are there any guides on how to do this?
The Kindle 4 is apparently ARMv7h.