PW4 Installed Winterbreak and getting "xzdec: not found" on all MRInstaller Packages

KrisKindle · 03-23-2025, 08:01 PM

Hi,
This is a great community with lots of tips for resurrecting old hardware. Thank you!

I thought I had successfully installed Winterbreak (https://kindlemodding.org/jailbreaking/WinterBreak/) on my 10th Gen Paperwhite (FW v. 5.17.1.0.3). However, whenever I try to run MRInstaller packages via KUAL, I see the following message in the logs:

"./xzdec: not found"

Any ideas on how to fix this?

DNSB · 03-23-2025, 09:07 PM

Which packages? Do they have hf (hard float) as part of the name? Some such as OTARenamer and KOReader are available in hard float editions but most of the older packages are not and will not install.

KrisKindle · 03-24-2025, 09:57 AM

Quote:

Originally Posted by DNSB

Which packages? Do they have hf (hard float) as part of the name? Some such as OTARenamer and KOReader are available in hard float editions but most of the older packages are not and will not install.

Thanks for the reply. I don't really care about KOReader and I guess OTARenamer worked for me. I'm trying to set up this old Kindle as a shared calendar display for my busy family (using this project).
I basically need the Python and Screensaver packages and that's where I'm running into the "xzdec: not found" problem.

supon · 03-26-2025, 10:22 AM

i had previously usede kindle pw4 5.12.4 with niljue hack but a few months earlier messed up my jb anmd now need to reinstall a jb. so was considering winterbreeak but afaird that will lose the old koreader perks and extensions

DNSB · 03-26-2025, 12:40 PM

KOReader does not seem to have issues with any extensions that I've tested using 5.16/5.17/5.18 firmware. Just make sure to install KOReader from the nightly builds until the kindlehf builds hit the mainstream.

KrisKindle · 03-26-2025, 04:19 PM

Quote:

Originally Posted by DNSB

KOReader does not seem to have issues with any extensions that I've tested using 5.18/5.18 firmware. Just make sure to install KOReader from the nightly builds until the kindlehf builds hit the mainstream.

As I am on 5.17 FW, is there a path to downgrade WinterBreak and then install an alternate JB that can get me to the point of being able to install the Python and Screensaver hacks?

j.p.s · 03-26-2025, 04:36 PM

Quote:

Originally Posted by KrisKindle

As I am on 5.17 FW, is there a path to downgrade WinterBreak and then install an alternate JB that can get me to the point of being able to install the Python and Screensaver hacks?

No, but you can downgrade the firmware to a version that does not use hardfloat. Lokk for the downgrader thread.

Frogm4n · 03-26-2025, 05:55 PM

A bit more direct: The type of software is related to the firmware version, not the jailbreak. Any firmware 5.16.3 or higher requires hf built binaries. Anything lower uses softfloat, which is the previous "standard". The jailbreak that can be used is also tied to the firmware version. The kind of software that you can run has nothing to do with the particular jailbreak used.

KrisKindle · 03-27-2025, 12:54 PM

Thank you for the tips! I will try that

03-23-2025, 08:01 PM	#1
KrisKindle Junior Member Posts: 4 Karma: 10 Join Date: Mar 2025 Device: Paperwhite 10	Installed Winterbreak and getting "xzdec: not found" on all MRInstaller Packages Hi, This is a great community with lots of tips for resurrecting old hardware. Thank you! I thought I had successfully installed Winterbreak (https://kindlemodding.org/jailbreaking/WinterBreak/) on my 10th Gen Paperwhite (FW v. 5.17.1.0.3). However, whenever I try to run MRInstaller packages via KUAL, I see the following message in the logs: "./xzdec: not found" Any ideas on how to fix this?

03-26-2025, 10:22 AM	#4
supon Junior Member Posts: 9 Karma: 10 Join Date: Sep 2021 Device: none	whhat is hard float problem? i had previously usede kindle pw4 5.12.4 with niljue hack but a few months earlier messed up my jb anmd now need to reinstall a jb. so was considering winterbreeak but afaird that will lose the old koreader perks and extensions

03-26-2025, 12:40 PM	#5
DNSB Bibliophagist Posts: 45,947 Karma: 168961900 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	KOReader does not seem to have issues with any extensions that I've tested using 5.16/5.17/5.18 firmware. Just make sure to install KOReader from the nightly builds until the kindlehf builds hit the mainstream. Last edited by DNSB; 03-26-2025 at 06:11 PM.

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03-23-2025, 09:07 PM	#2
DNSB Bibliophagist Posts: 45,947 Karma: 168961900 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Which packages? Do they have hf (hard float) as part of the name? Some such as OTARenamer and KOReader are available in hard float editions but most of the older packages are not and will not install.

03-26-2025, 05:55 PM	#8
Frogm4n Evangelist Posts: 452 Karma: 3456809 Join Date: Jul 2023 Device: Scribe 2022, OA2, PRS-350	A bit more direct: The type of software is related to the firmware version, not the jailbreak. Any firmware 5.16.3 or higher requires hf built binaries. Anything lower uses softfloat, which is the previous "standard". The jailbreak that can be used is also tied to the firmware version. The kind of software that you can run has nothing to do with the particular jailbreak used.

03-27-2025, 12:54 PM	#9
KrisKindle Junior Member Posts: 4 Karma: 10 Join Date: Mar 2025 Device: Paperwhite 10	Thank you for the tips! I will try that

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