MobileRead Forums - View Single Post - Tutorial How-to: Booting 5.14.1 on KV

katadelos · 12-01-2021, 04:02 PM

Description
This how-to covers the process of manually flashing a Kindle Voyage with a rootfs image from the 5.14.1 update for PW3.

Compatibility
This how-to is ONLY applicable to KV models with 512MB of RAM. Even then, you should use caution - the PW3 rootfs boots successfully without modification but there is presumably a reason why 5.14.1 was not released for KV.

Process
Download a copy of the 5.14.1 update for PW3 and extract it using Kindletool:

Code:

kindletool extract ~/Downloads/update_kindle_all_new_paperwhite_5.14.1.bin /tmp/pw3

Decompress rootfs.img.gz to obtain the raw rootfs.img:

Code:

gzip -d /tmp/pw3/rootfs.img.gz

Boot into diags mode from u-boot:

Code:

uboot > bootm 0xE41000

Once in diags, export the userspace partition:

Code:

usb export

Transfer rootfs.img to the device:

Code:

cp /tmp/pw3/rootfs.img /media/user/Kindle
sync

Eject the Kindle from the host PC and exit USB Export mode:

Code:

x   ICE-WARIO-WFO-512 - USB EXPORT -  71
   ~~~~  1.16.614.264341  ~~~~ 
     pcbId:04XXXXXXXXXXXX
   USB device exported
    
   Once you are done
   Eject the USB device from the PC then
 
 
   Battery capacity  71
 
(Q)-to continue  
 
(X)-Exit
x

Exit diags mode and drop to a shell:

Code:

exit login

Flash rootfs.img using DD. This will take a while to complete:

Code:

[root@[192_168_15_244] root]# dd if=/mnt/us/rootfs.img of=/dev/mmcblk0p1 bs=4096
112500+0 records in
112500+0 records out
460800000 bytes (439.5MB) copied, 95.986967 seconds, 4.6MB/s

Reboot the device - it will now boot into 5.14.1:

Code:

reboot

12-01-2021, 04:02 PM	#1
katadelos rm -rf / Posts: 219 Karma: 3333683 Join Date: Nov 2019 Location: United Kingdom Device: K5, KT, KT2, KT3, KT4, KV, PW2, PW3, PW4, PW5	How-to: Booting 5.14.1 on KV Description This how-to covers the process of manually flashing a Kindle Voyage with a rootfs image from the 5.14.1 update for PW3. Compatibility This how-to is *ONLY* applicable to KV models with 512MB of RAM. Even then, you should use caution - the PW3 rootfs boots successfully without modification but there is presumably a reason why 5.14.1 was not released for KV. Process Download a copy of the 5.14.1 update for PW3 and extract it using Kindletool: Code: kindletool extract ~/Downloads/update_kindle_all_new_paperwhite_5.14.1.bin /tmp/pw3 Decompress rootfs.img.gz to obtain the raw rootfs.img: Code: gzip -d /tmp/pw3/rootfs.img.gz Boot into diags mode from u-boot: Code: uboot > bootm 0xE41000 Once in diags, export the userspace partition: Code: usb export Transfer rootfs.img to the device: Code: cp /tmp/pw3/rootfs.img /media/user/Kindle sync Eject the Kindle from the host PC and exit USB Export mode: Code: x ICE-WARIO-WFO-512 - USB EXPORT - 71 ~~~~ 1.16.614.264341 ~~~~ pcbId:04XXXXXXXXXXXX USB device exported Once you are done Eject the USB device from the PC then Battery capacity 71 (Q)-to continue (X)-Exit x Exit diags mode and drop to a shell: Code: exit login Flash rootfs.img using DD. This will take a while to complete: Code: [root@[192_168_15_244] root]# dd if=/mnt/us/rootfs.img of=/dev/mmcblk0p1 bs=4096 112500+0 records in 112500+0 records out 460800000 bytes (439.5MB) copied, 95.986967 seconds, 4.6MB/s Reboot the device - it will now boot into 5.14.1: Code: reboot