K4 New Kindle 4 NT project

SouperComputer · Yesterday, 03:04 AM

Hello all,

This is my first post, and first time with one of these devices so parts of this are probably going to sound pretty stupid. Apologies in advance. Either way, I just recently got a Kindle 4 NT, and have been wanting to mess around with it. Best case scenario I think it would be cool to have the full Linux OS exposed and run a small launcher with a PDF viewer, Lynx (map the back and forth buttons to the arrow keys for navigation), and perhaps some other stuff, but those two are my main priority. I understand there seems to have been some way to chroot Debian on these at one point? That would be perfect, but that method seems outdated. I also understand there's a way to run Alpine but that doesn't seem to be supported for this model. I'm aware KUAL exists, but I'm not sure what applications that runs (actual Linux binaries or something else) or where to get them. Doesn't seem as low-level into the system as I might like just as far as the fun of tinkering goes.

I'm on firmware 4.1.4, so it seems like most options should be available. I'm also planing on exposing the hardware serial port. Any tips on what's available to me, or what precisely I should be looking for?

Many thanks

dhdurgee · Yesterday, 03:28 PM

Keep in mind that if you JB and install the USB networking package you will be able to SSH into the Kindle. You can install compatible binaries from repository if you match the architecture and kernel as long as you also include any missing dependencies. I did so in creating the SOX media player. You can invoke any script or binary from a KUAL menu entry once you create it.

Dave

j.p.s · Yesterday, 05:15 PM

Quote:

Originally Posted by SouperComputer

I'm aware KUAL exists, but I'm not sure what applications that runs (actual Linux binaries or something else) or where to get them.

KUAL is Kindle Unified Application Launcher

https://www.mobileread.com/forums/sh...d.php?t=203326

It can launch just about anything that will run on a kindle provided there is a couple of easy to make config files for it. A very incomplete list is at:

https://www.mobileread.com/forums/sh...d.php?t=205064

Yesterday, 03:04 AM	#1
SouperComputer Junior Member Posts: 1 Karma: 10 Join Date: Mar 2026 Device: Kindle NT 4th Gen	New Kindle 4 NT project Hello all, This is my first post, and first time with one of these devices so parts of this are probably going to sound pretty stupid. Apologies in advance. Either way, I just recently got a Kindle 4 NT, and have been wanting to mess around with it. Best case scenario I think it would be cool to have the full Linux OS exposed and run a small launcher with a PDF viewer, Lynx (map the back and forth buttons to the arrow keys for navigation), and perhaps some other stuff, but those two are my main priority. I understand there seems to have been some way to chroot Debian on these at one point? That would be perfect, but that method seems outdated. I also understand there's a way to run Alpine but that doesn't seem to be supported for this model. I'm aware KUAL exists, but I'm not sure what applications that runs (actual Linux binaries or something else) or where to get them. Doesn't seem as low-level into the system as I might like just as far as the fun of tinkering goes. I'm on firmware 4.1.4, so it seems like most options should be available. I'm also planing on exposing the hardware serial port. Any tips on what's available to me, or what precisely I should be looking for? Many thanks

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Yesterday, 03:28 PM	#2
dhdurgee Guru Posts: 920 Karma: 3000002 Join Date: Jun 2010 Device: K3W, PW4	Keep in mind that if you JB and install the USB networking package you will be able to SSH into the Kindle. You can install compatible binaries from repository if you match the architecture and kernel as long as you also include any missing dependencies. I did so in creating the SOX media player. You can invoke any script or binary from a KUAL menu entry once you create it. Dave

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