Tools Snapshots of NiLuJe's hacks

[NiLuJe]

Originally Posted by mergen3107

This only happens when I have `Enable SSH on boot` in USB Network. Can this be fixed?

There have been varied and weird issues over the years, SSH or not, related to booting a Kindle while plugged in, so, probably not. I certainly don't intent to revisit that madness myself.

(This is probably even documented in the README).

[mergen3107]

Originally Posted by NiLuJe

You shouldn't be seeing the JAILBREAK banner on every boot with an up to date hotfix, but, who knows, this shit be weird.

Should I reinstall hotfix?

[boriscornelli]

md5sum is incorrect on multiple downloads


MR Package Installer | kual-mrinstaller-1.7.N-r19303.tar.xz | 2023-Nov-05 13:37:00 | 1.7M | 3bd0f475c6d6926669bfb4ff4c64dd30 | MRPI

i downloaded multiple times to verify

md5sum kual-mrinstaller-1.7.N-r19303.tar.xz*
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz.1
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz.2
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz.3
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz.4

can we get a updated md5sum on the files?

verified good
8af8c2a4cbdf6a9f4a45a63bb4c4dd02 kindle-mkk-20141129-r18833.tar.xz
6d149ea80df5081c8c9208ddec267582 kual-batterystatus-1.1.N-r18977.tar.xz
0484d7fd491e86c2fea9dc29d3901366 kual-gawk-1.5.N-r18977.tar.xz
931d61eedbdb1bfca6b1602740838213 kual-helper-0.5.N-r18980.tar.xz
0372d00ec596f18361f3b3cf5b64e35c kual-kual-plus-0.2.N-r13380.tar.xz


cannot verify, different md5sum
f439e3b25d7122d07177bd85fe4317e5 KUAL-5b5d1d2-20231104.tar.xz
03bb04584331e2dec4f7e09c36e05239 kual-mrinstaller-1.7.N-r19303.tar.xz
20397b923c9672ba4e0a5ec37aff5be0 KUAL-v2.7.31-g702078b-20231104.tar.xz

[mergen3107]

Originally Posted by NiLuJe

It's perfectly harmless and will magically fix itself once everything is rebuilt.

Rebuilt for 5.16.2?
Do you have an EGA or is this Soon™ ?

[mergen3107]

Originally Posted by NiLuJe

You shouldn't be seeing the JAILBREAK banner on every boot with an up to date hotfix, but, who knows, this shit be weird.

I think I found a culprit.
In current JBHotfix, file "fixup" L780-L794:

# Check if we need to do something with the OTA pubkey
if [ ! -f "${ROOT}/etc/uks.sqsh" ] && [ ! -f "${ROOT}/etc/uks/pubdevkey01.pem" ] ; then
	# No jailbreak key, install it
	install_touch_update_key
else
	# Jailbreak key found... Check it.
	if [ "$(md5sum "${ROOT}/etc/uks/pubdevkey01.pem" | awk '{ print $1; }')" != "7130ce39bb3596c5067cabb377c7a9ed" ] ; then
		# Unknown (?!) jailbreak key, install it
		install_touch_update_key
	fi
	if [ ! -O "${ROOT}/etc/uks/pubdevkey01.pem" ] || [ ! -G "${ROOT}/etc/uks/pubdevkey01.pem" ] ; then
		# Not our own? Make it so!
		install_touch_update_key
	fi
fi

All checks are good, except the last one:

	if [ ! -O "${ROOT}/etc/uks/pubdevkey01.pem" ] || [ ! -G "${ROOT}/etc/uks/pubdevkey01.pem" ] ; then
		# Not our own? Make it so!
		install_touch_update_key
	fi

Currently, /etc/uks/pubdevkey01.pem has Owner=1001 Group=127 instead of root on both.

If I do it by hand (from normal boot Kindle over SSH), it says FS is read-only:

[root@kindle us]# mount -o rw,remount /
[root@kindle us]# chown root:root "/etc/uks/pubdevkey01.pem"
chown: /etc/uks/pubdevkey01.pem: Read-only file system

@NiLuJe,
Is this is a problem?

[mergen3107]

The other check on /etc/uks.sqsh is OK, it is root:root

if [ -f "${ROOT}/etc/uks.sqsh" ] && [ -f "${MKK_PERSISTENT_STORAGE}/updater_keys.sqsh" ] ; then
	# Check it.
	if [ "$(md5sum "${ROOT}/etc/uks.sqsh" | awk '{ print $1; }')" != "f62830065dd99921c42c90f6f8347bf5" ] ; then
		# Unknown (?!) jailbreak keystore, install it
		install_touch_update_key_squash
	fi
	if [ ! -O "${ROOT}/etc/uks.sqsh" ] || [ ! -G "${ROOT}/etc/uks.sqsh" ] ; then
		# Not our own? Make it so!
		install_touch_update_key_squash
	fi
fi

[NiLuJe]

@boriscornelli: Yes, the updated packages are manually patched in, and I couldn't be arsed to update the checksums.

Will be magically fixed once I can once again update everything at once (at which point all of this will be autogenerated again).

I'll remove them in the meantime.

[NiLuJe]

@mergen3107: Ah, I'll probably need to rebuild a squash then, thanks!

(Ought to be mostly harmless, all things considered, though).

[mergen3107]

Thank you! Glad to help from time to time as well

[NiLuJe]

Ought to be fixed in r19326, thanks .

[mergen3107]

Originally Posted by NiLuJe

Ought to be fixed in r19326, thanks .

Thank you
Do you mean USBNetwork? Or JB Hotfix? I couldn’t find the revision number in the JB Hotfix, but I can see very close number in the USBnetwork (first page)

[mergen3107]

Ah, sorry!
r19326 is the package for K5 Jailbreak package, will test soon!

[mergen3107]

@NiLuJe
Thank you very much for your quick response!
I installed the new Dec-02-23 JB Hotfix as an mrpi package.
Then restarted Kindle Scribe two times:
1) First time it only said **** SQUASH JB ****
2) Second time it didn't say anything on the loading screen

Doubled checked the key in /etc/uks/ , everything is great! The key has root:root ownership (Owner:Group).

[NiLuJe]

Cool, thanks for double-checking .

[mergen3107]

No-no-no, thank you!

I also tried the usbnet on boot after new hotfix, it seems it is the same issue.
All observations:
1) Kindle is up, usbnet active (no usbms), I can connect either by cable or Wi-Fi, all good.
2) I connect the cable, test usbnet again, then long-press the power button and hit restart.
3) Screen with "Your Kindle is restarting" sohws up. Then, usbnet turns off, for a brief 10-15 seconds I see the Kindle drive show up on the screen of my PC. I don't have enough time to safely eject it - since Kindle continues with the restart.
4) Then, after seemingly regular amount of time, Kindle boots into this semi-debug mode with "Collecting info". Meanwhile it still shows only 1/3 strings that usbnet reports.
5) Cable usbnet refuses the connection. Didn't try Wi-Fi yet.

Is this how it usualy goes when you restart a Kindle with Enable usbnet on boot? I mean, things in Step 3.