Tutorial How-to: Booting 5.14.1 on KV

katadelos · 12-01-2021, 05:02 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

MrTick · 12-01-2021, 06:30 PM

I'm wondering (as my KV is still a serial-virgin) if we can create a FB03 (Recovery v2) update - that is designed exactly for flashing system partitions.
I'll brick... I mean I'll test it tomorrow

EDIT:

Code:

> kindletool extract update_kindle_all_new_paperwhite_5.14.1.bin tmp
> rm tmp/*.sig tmp/*.dat # signature rubish
> rm -r tmp/imx60_wario # bye bye uboot+kernel!
> cd tmp && kindletool create recovery2 -d voyage . ../update_kindle_all_new_voyage_5.14.1.bin

Package is there, looking at me, waiting to be flashed, but I'll be strong and resist till morning before the flashing (attempt)

NiLuJe · 12-01-2021, 07:50 PM

You'd need a patched initrd for that (c.f., @katadelos' previous post on that front

) (and explicitly flag the package with the right key number but our actual JB key, because I don't think the updater even supports the dev key index).

All of that *should* be doable via KindleTool, but, obviously, has never been tested (to my knowledge)

.

Or @yifanlu's old FW-3.x-on-DXg posts/scripts, which might have been doing something of the sort way back in the day

.

katadelos · 12-01-2021, 08:16 PM

Quote:

Originally Posted by NiLuJe

You'd need a patched initrd for that (c.f., @katadelos' previous post on that front

) (and explicitly flag the package with the right key number but our actual JB key, because I don't think the updater even supports the dev key index).

All of that *should* be doable via KindleTool, but, obviously, has never been tested (to my knowledge)

.

Pretty much this - once the initrd thing is out of the way, it's not particularly difficult to create a self-signed update that will successfully install. I've tested this in the past but can't find the exact KindleTool args that I used to create the update

I had a look and managed to find the script that I was using to patch recovery-util, it's just a simple find and replace:

Spoiler:

Code:

exponent = [0x01, 0x00, 0x01]

test = [0x00, 0xbc, 0x03, 0x06, 0x30, 0x30, 0x2d, 0x81, 0x82, 0x89, 0xdf, 0xaf, 0xda, 0x24, 0x9d, 0x31, 0x1e, 0xe9, 0x6f, 0x4f, 0xab, 0xb0, 0xc2, 0xb7, 0xb4, 0x42, 0xb9, 0xd0, 0x59, 0x88, 0x51, 0xa3, 0x30, 0xc7, 0xe8, 0xac, 0x2a, 0xbb, 0xec, 0xcd, 0x81, 0x48, 0xfe, 0xfb, 0x61, 0x5d, 0xd7, 0xa0, 0x73, 0x94, 0xbf, 0xa9, 0xb6, 0x61, 0x9e, 0x7e, 0x74, 0x21, 0x88, 0xaa, 0x61, 0x70, 0x10, 0x4d, 0x1d, 0x73, 0xb4, 0x61, 0xe1, 0xc0, 0x45, 0x8d, 0xfa, 0xc6, 0xa8, 0x37, 0x8f, 0x96, 0xc6, 0xbc, 0xe9, 0x36, 0x80, 0xd1, 0x7e, 0xaa, 0xfc, 0x0a, 0xa0, 0x35, 0xe3, 0xf2, 0x39, 0x53, 0x23, 0x35, 0x32, 0x88, 0x4a, 0x7d, 0x35, 0xd9, 0xbb, 0xb8, 0xbf, 0x64, 0x19, 0x75, 0xbd, 0xba, 0x77, 0x35, 0x1e, 0x14, 0x80, 0xd9, 0x7a, 0x71, 0xf3, 0x37, 0x59, 0xb4, 0xb1, 0xa6, 0x64, 0x1d, 0x4c, 0x0d, 0x32, 0xfa, 0x35, 0xbb, 0xb1, 0x4f, 0x86, 0x91, 0x24, 0xc1, 0x93, 0xb6, 0x9d, 0xe4, 0x4c, 0x9d, 0x8b, 0x9e, 0xa8, 0xec, 0xa4, 0x0c, 0x0e, 0x9d, 0x3a, 0x6c, 0x3d, 0xae, 0x2b, 0xb9, 0x95, 0xb3, 0x71, 0xce, 0x2c, 0x6e, 0xaa, 0x9d, 0x75, 0x0e, 0xec, 0x83, 0xe8, 0xcd, 0xac, 0x89, 0xde, 0x27, 0xba, 0x9a, 0x44, 0x7a, 0x7c, 0x33, 0xb1, 0xf9, 0xdb, 0x13, 0xf7, 0xaf, 0x4a, 0xb4, 0x6a, 0x64, 0xc6, 0x9d, 0xcb, 0xb7, 0x0d, 0x28, 0x37, 0xad, 0xad, 0xae, 0x19, 0x27, 0xc8, 0xe4, 0x07, 0x44, 0x93, 0x17, 0xf8, 0x3e, 0x69, 0x07, 0x79, 0x26, 0x81, 0x97, 0x0f, 0x0b, 0x26, 0x7d, 0x1b, 0x98, 0x33, 0xe7, 0xe1, 0xcc, 0x20, 0x18, 0x9f, 0xc3, 0xd8, 0x0e, 0x38, 0x66, 0x14, 0xa5, 0x79, 0x85, 0x8a, 0x00, 0xff, 0xaf, 0x25, 0x36, 0xf8, 0x5b, 0x7e, 0x21, 0x7a, 0xd4, 0x47, 0xd0, 0x5e, 0x82, 0x21]

jailbreak_pub = [0x00, 0xc9, 0x9f, 0x58, 0xd6, 0x53, 0xec, 0x71, 0x56, 0xff, 
                 0xde, 0x44, 0xa7, 0xc2, 0x3d, 0x1f, 0x5e, 0xe3, 0xb9, 0x4f, 
                 0x58, 0xdd, 0xab, 0x1f, 0x7d, 0xf3, 0xf5, 0x06, 0xdf, 0x9e, 
                 0xa9, 0x82, 0xc4, 0x14, 0x4b, 0x3f, 0xa9, 0x8c, 0x8c, 0x6c, 
                 0xba, 0x00, 0xfc, 0xb2, 0x71, 0x05, 0xe0, 0xde, 0x73, 0xe2, 
                 0xe5, 0xf7, 0x1b, 0xef, 0x96, 0xa5, 0x66, 0x8f, 0x8e, 0x87, 
                 0x4d, 0x76, 0x1e, 0x93, 0x1e, 0xf4, 0xb9, 0xe9, 0x78, 0x48, 
                 0x25, 0xa0, 0x87, 0x66, 0xd4, 0x4e, 0x0b, 0x3a, 0xcc, 0xab, 
                 0xcf, 0x89, 0x2d, 0xb5, 0x0b, 0x46, 0x46, 0x5c, 0xc2, 0x12, 
                 0xb9, 0x81, 0x1a, 0xde, 0xbe, 0x70, 0x05, 0x44, 0x57, 0xce, 
                 0xb2, 0xda, 0x98, 0x4e, 0x27, 0x79, 0x8b, 0x93, 0x41, 0x24, 
                 0xf5, 0x44, 0x17, 0x6c, 0x85, 0x1f, 0xae, 0xfc, 0x89, 0x9d, 
                 0x2d, 0x8c, 0x28, 0xb1, 0xb6, 0x71, 0xcc, 0xe3, 0x95]

pubprodkey1_n = [0x00, 0xb1, 0x7e, 0x98, 0x99, 0xd5, 0xd6, 0xdd, 0x48, 0xe8, 
                 0x2b, 0x8a, 0x4a, 0x97, 0x0f, 0xa9, 0x44, 0x49, 0x4a, 0xc3, 
                 0xe6, 0x5e, 0x76, 0x9c, 0xde, 0x74, 0x88, 0xc8, 0x76, 0xbc, 
                 0x37, 0x26, 0x5b, 0xf1, 0x73, 0x90, 0xf0, 0xef, 0xd1, 0xe4, 
                 0x5f, 0xd5, 0xc8, 0xba, 0xc3, 0x78, 0x9f, 0x86, 0x61, 0xf0, 
                 0xa8, 0x32, 0xbd, 0x39, 0x83, 0x67, 0xa3, 0x03, 0xda, 0xa7, 
                 0x35, 0x07, 0x02, 0x21, 0xee, 0x91, 0x78, 0xd6, 0xac, 0xe0, 
                 0xb7, 0x7d, 0x96, 0x33, 0x80, 0x0c, 0x73, 0x20, 0xf3, 0x78, 
                 0x37, 0x25, 0x30, 0xdf, 0xaf, 0x73, 0x14, 0xad, 0x80, 0x00, 
                 0xb6, 0x67, 0x5e, 0x9b, 0x5c, 0xeb, 0xc0, 0xff, 0xc7, 0x1b, 
                 0x59, 0xf7, 0x8a, 0x68, 0xad, 0xff, 0xa4, 0x2e, 0xdc, 0x3f, 
                 0xe2, 0xf1, 0x76, 0x36, 0x11, 0xec, 0x5e, 0xd7, 0x21, 0xae, 
                 0x9b, 0xc8, 0x0f, 0xe2, 0x61, 0x92, 0x8a, 0xfc, 0x31]

pubprodkey2_n = [0x00, 0xb0, 0xf7, 0x4b, 0x8e, 0x06, 0x27, 0x39, 0xf1, 0x69, 
                 0x10, 0x8a, 0xae, 0xc0, 0x3e, 0x58, 0x42, 0x0f, 0xe5, 0xa3, 
                 0x10, 0x09, 0xa1, 0x55, 0x3e, 0x01, 0x06, 0x99, 0xdd, 0x69, 
                 0xbc, 0x6f, 0xbb, 0xb7, 0x95, 0xfd, 0x13, 0x98, 0xa2, 0xff, 
                 0xf1, 0x15, 0xf3, 0xd9, 0x5a, 0xd7, 0x76, 0xb1, 0x46, 0x79, 
                 0xf8, 0x84, 0xc4, 0xce, 0xb4, 0x3c, 0x61, 0x0b, 0x71, 0xa8, 
                 0xda, 0x9e, 0x14, 0x72, 0xd6, 0x52, 0x67, 0xd1, 0x98, 0xcf, 
                 0xfe, 0xcf, 0x44, 0xcf, 0xa1, 0x36, 0x1f, 0x4b, 0x1d, 0x3f, 
                 0x3c, 0xfd, 0x69, 0x4a, 0x26, 0x1e, 0x47, 0x2f, 0x39, 0x64, 
                 0x2e, 0xc7, 0xe3, 0x28, 0x61, 0x12, 0x27, 0xa2, 0x7c, 0x21, 
                 0xb1, 0xf7, 0xf5, 0xc2, 0x63, 0x5d, 0xe6, 0x63, 0xa1, 0xa1, 
                 0xcd, 0x22, 0x33, 0xb7, 0x75, 0xf1, 0x6b, 0x2e, 0x3d, 0xb8, 
                 0xf8, 0x7f, 0x3a, 0x9b, 0xee, 0x19, 0xd9, 0x9d, 0xdc, 0x00, 
                 0x0f, 0x49, 0xa8, 0x2b, 0x68, 0x29, 0x99, 0xe3, 0x81, 0xc8, 
                 0x22, 0x41, 0xfa, 0x8b, 0xc2, 0xef, 0x0d, 0x8d, 0x62, 0x98, 
                 0xc2, 0x5c, 0x71, 0xdd, 0xb0, 0x5c, 0x9a, 0xb5, 0x5e, 0x2b, 
                 0x61, 0xe0, 0x15, 0x4f, 0x4a, 0x54, 0x7d, 0x55, 0xe7, 0x93, 
                 0x31, 0x41, 0x4e, 0x3d, 0xf1, 0xc6, 0xb7, 0x6f, 0x2c, 0xd2, 
                 0x20, 0xa6, 0x5d, 0xfc, 0x2a, 0xa4, 0xfc, 0x50, 0x6b, 0x62, 
                 0xbe, 0x80, 0xf5, 0x22, 0xcc, 0x7f, 0x2a, 0x56, 0xd5, 0x4f, 
                 0xe4, 0x60, 0xe6, 0xae, 0x4a, 0xfd, 0x21, 0xe6, 0x4e, 0x61, 
                 0xa0, 0x8b, 0x18, 0x6a, 0xd3, 0x4f, 0x10, 0xc5, 0x50, 0x49, 
                 0x41, 0xf3, 0xc6, 0x67, 0xae, 0xff, 0x17, 0x85, 0xd5, 0x67, 
                 0x6d, 0x3f, 0xaa, 0x7a, 0x74, 0x0c, 0xaf, 0xef, 0xb7, 0xf0, 
                 0x07, 0xc0, 0xc6, 0x0c, 0x23, 0xe1, 0x02, 0x8b, 0x8d, 0xdf,
                 0x9b, 0x53, 0xeb, 0x1f, 0xd7, 0x76, 0x87]

#pubprodkey1 = bytes(pubprodkey1_n + exponent)
#pubprodkey2 = bytes(pubprodkey2_n + exponent)
#jailbreak_k_2 = bytes(test + exponent)
#jailbreak_k_1 = bytes(jailbreak_pub + exponent)

pubprodkey1 = bytes(pubprodkey1_n)
pubprodkey2 = bytes(pubprodkey2_n)
jailbreak_k_2 = bytes(test)
jailbreak_k_1 = bytes(jailbreak_pub)

with open("recovery-util", 'rb') as original:
    original_bytes = original.read()
    with open("recovery-util-patch", 'wb') as patched:
        print(pubprodkey1 in original_bytes)
        k1 = original_bytes.replace(pubprodkey2, jailbreak_k_2)
        k2 = k1.replace(pubprodkey1, jailbreak_k_1)
        patched.write(k2)
    patched.close()
original.close()

MrTick · 12-02-2021, 04:29 AM

Quote:

Originally Posted by NiLuJe

You'd need a patched initrd for that (c.f., @katadelos' previous post on that front

) (and explicitly flag the package with the right key number but our actual JB key, because I don't think the updater even supports the dev key index).

All of that *should* be doable via KindleTool, but, obviously, has never been tested (to my knowledge)

.

Or @yifanlu's old FW-3.x-on-DXg posts/scripts, which might have been doing something of the sort way back in the day

.

Ok, I remember now that one of the prerequisites for creating Frankenstein's DXg was flashing custom recovery kernel.
Posting link to @yiafanlu's solution:
https://yifan.lu/2011/04/02/recoveri...rupt-kindle-2/

NiLuJe · 12-02-2021, 12:14 PM

Quote:

Originally Posted by katadelos

I've tested this in the past but can't find the exact KindleTool args that I used to create the update

Possibly something like -c 2? I don't recall if you actually need to supply a private key manually with this (but I don't think so. [EDIT: You don't, but keep the key length into consideration, c.f., below]), and the doc appears to be slightly incomplete in that it only mentions OTA V2, while the flag should be honored anywhere it's supported, which probably includes Recovery V2 ;p.

EDIT: Or `-c 1`, actually, unless you pass an actual custom 2K key to -k, otherwise shit happens

.

(Also, fixed the docs).

MrTick · 12-03-2021, 02:28 PM

Yup, works like a charm with:

Code:

kindletool create recovery2 -c 1 -d voyage -p wario rootfs.img.gz ../update_kindle_all_new_voyage_5.14.1.bin

(I also had to add -p wario, otherwise system was complaining, and the update was failing)

I've built the custom kernel according more or less to katadelos guide: https://www.mobileread.com/forums/sh...d.php?t=343310
Did my first very own kernel bricked KV?... maybe (no more serial virgin!)
Did one of the screws jumped through fourth dimension to some inaccessible universe?... I don't really want to talk about that

Anyway, thanks again to both of you guys!

12-01-2021, 05:02 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

12-01-2021, 06:30 PM	#2
MrTick Enhtusiast Posts: 53 Karma: 2340139 Join Date: Dec 2018 Device: K3 DxG PW1 KV PW4	I'm wondering (as my KV is still a serial-virgin) if we can create a FB03 (Recovery v2) update - that is designed exactly for flashing system partitions. I'll brick... I mean I'll test it tomorrow EDIT: Code: > kindletool extract update_kindle_all_new_paperwhite_5.14.1.bin tmp > rm tmp/.sig tmp/.dat # signature rubish > rm -r tmp/imx60_wario # bye bye uboot+kernel! > cd tmp && kindletool create recovery2 -d voyage . ../update_kindle_all_new_voyage_5.14.1.bin Package is there, looking at me, waiting to be flashed, but I'll be strong and resist till morning before the flashing (attempt) Last edited by MrTick; 12-01-2021 at 06:44 PM.

12-03-2021, 02:28 PM	#7
MrTick Enhtusiast Posts: 53 Karma: 2340139 Join Date: Dec 2018 Device: K3 DxG PW1 KV PW4	Yup, works like a charm with: Code: kindletool create recovery2 -c 1 -d voyage -p wario rootfs.img.gz ../update_kindle_all_new_voyage_5.14.1.bin (I also had to add -p wario, otherwise system was complaining, and the update was failing) I've built the custom kernel according more or less to katadelos guide: https://www.mobileread.com/forums/sh...d.php?t=343310 Did my first very own kernel bricked KV?... maybe (no more serial virgin!) Did one of the screws jumped through fourth dimension to some inaccessible universe?... I don't really want to talk about that Anyway, thanks again to both of you guys!

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12-01-2021, 07:50 PM	#3
NiLuJe BLAM! Posts: 13,506 Karma: 26047202 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	You'd need a patched initrd for that (c.f., @katadelos' previous post on that front ) (and explicitly flag the package with the right key number but our actual JB key, because I don't think the updater even supports the dev key index). All of that should be doable via KindleTool, but, obviously, has never been tested (to my knowledge) . Or @yifanlu's old FW-3.x-on-DXg posts/scripts, which might have been doing something of the sort way back in the day .

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