Topic: Discovery: Boot Xbox360 from 1888 Kernel - Downgrade Kernel (Read 762 times)

0794 · « **Reply #30 on:** January 13, 2007, 07:29:00 AM »

Great progress made by those at xboxhacker!

Maintaining kernels and patches on the flash memory and then creating the new exe on bootup is definitly not something I would have thought to have done but I am sure MS had their reasons. Excellent find!

Continue the great work!

infidelity · « **Reply #31 on:** January 13, 2007, 08:20:00 AM »

additional fellow hacker compliment

twistedsymphony · « **Reply #32 on:** January 13, 2007, 08:24:00 AM »

Interesting that the kernel and dashbaoard are separate...

I'm curious if he can still log in to Xbox Live, does it check the kernel or just the dashboard version.

Also I'm curious if this hack undoes the Save game restrictions that came about during the fall update.

Either way it's some interesting progress indeed.

xboxbman · « **Reply #33 on:** January 13, 2007, 09:11:00 AM »

My balls are tingling reading this. If the kernel boot sequence can be altered to downgrade it, can it be altered to boot unsigned commands? Is the kernel signed? I think this is some nice progress, I have a feeling this could lead somewhere good.....

jaimebenlasnow · « **Reply #34 on:** January 13, 2007, 09:24:00 AM »

Yes the kernel is sign i think i read that on free60 or something like that but downgrading it is not the same than replacing all the kernel since the 1888 is already on the flash and it's stored as a backed up kernel

This post has been edited by jaimebenlasnow: Jan 13 2007, 05:24 PM

mlmadmax · « **Reply #35 on:** January 13, 2007, 08:57:00 AM »

Good , some sort of progress, it's been a long time coming. I am hopefull of some kind of chip in the near future.

atomiX · « **Reply #36 on:** January 13, 2007, 09:50:00 AM »

Progress is always welcomed. This might stimulate even more hackers to jump on board.

mrdan · « **Reply #37 on:** January 13, 2007, 09:18:00 AM »

I wonder if this allows us to modify region?

epsilon72 · « **Reply #38 on:** January 13, 2007, 09:21:00 AM »

Heheh, ironic that we finally have some small progress on the day my xbox 360 auction closes..

Hopefully we'll see some more progress in the future...hopefully the said progress will also work with the Zephyr, because that's the next 360 I'll get, if I get another one at all.

Knasen · « **Reply #39 on:** January 13, 2007, 10:17:00 AM »

It is always fun when people find out new "secret" stuff about the 360. Not sure if this discovery will help us anything, but it is anyhow an interesting read and perhaps its the beginning of something bigger

amexie · « **Reply #40 on:** January 13, 2007, 10:27:00 AM »

wow he can do all this but he cant get a copy of the kiosk disc to try it

santa09 · « **Reply #41 on:** January 13, 2007, 10:32:00 AM »

exactly what i thougt
im sure someone on here has one
so downgrading the kernel isnt really downgrading its just tell the 360 to boot one thats been backed up or what

TheIrishLad · « **Reply #42 on:** January 13, 2007, 11:07:00 AM »

I'm excited but I don't know why?

Rustmonkey · « **Reply #43 on:** January 13, 2007, 11:48:00 AM »

MS can't feasibly resign the kernal everytime they patch it, can they? That would be pretty big risk, considering the data could be pulled during the update process... so speculation about a "hacked" update to the kernal may be founded....

This post has been edited by Rustmonkey: Jan 13 2007, 07:48 PM

wolfienuke · « **Reply #44 on:** January 13, 2007, 12:14:00 PM »

QUOTE(Rustmonkey @ Jan 13 2007, 10:19 AM)

MS can't feasibly resign the kernal everytime they patch it, can they? That would be pretty big risk, considering the data could be pulled during the update process... so speculation about a "hacked" update to the kernal may be founded....

Yes, it is feasable, and it is done. Yet if you re-read the original post, you would find that the original kernel is signed, and all the patches are signed. They are signed and encrypted before being sent to your xbox360 over xbl, so it is not a security risk. What I don't know is if this means the final patched kernel is signed or not... By way of the transitive property it is, but is there a final signature for the patched kernel (possibly located in the patch, or is that even possible)?

Author Topic: Discovery: Boot Xbox360 from 1888 Kernel - Downgrade Kernel (Read 762 times)