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Linux on PS3 Slim

 
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ps2devman



Joined: 09 Oct 2006
Posts: 271

PostPosted: Tue Aug 31, 2010 4:17 pm    Post subject: Linux on PS3 Slim Reply with quote

That's the next step, and it's now technically possible (if fw<=3.41).
Stay tuned.
(with RSX full access!)
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ouasse



Joined: 30 Jul 2007
Posts: 91
Location: Paris, France

PostPosted: Tue Aug 31, 2010 6:24 pm    Post subject: Reply with quote

please provide more information. Is it enabled with psjailbreak ? what is the procedure for installing a distro on the hdd ?
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liberostelios



Joined: 15 Sep 2009
Posts: 2

PostPosted: Tue Aug 31, 2010 10:39 pm    Post subject: Reply with quote

Could you please say more about this. Is RSX full access possible on fat models, too? What about linux on fw>3.21 on fat devices?

Thanks in advance.
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bru



Joined: 03 Jul 2009
Posts: 3
Location: Poland

PostPosted: Wed Sep 01, 2010 12:35 am    Post subject: Re: Linux on PS3 Slim Reply with quote

Great to hear that ;)
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speedxl



Joined: 07 Aug 2008
Posts: 27

PostPosted: Wed Sep 01, 2010 4:52 am    Post subject: Reply with quote

Excellent news, i hope its possible on the fat too (with full rsx access)

Thank you for all that made this a reality.
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ps2devman



Joined: 09 Oct 2006
Posts: 271

PostPosted: Wed Sep 01, 2010 6:35 pm    Post subject: Reply with quote

The exploit behind jailbreak dongles is being analyzed and close to be fully understood.

Best scenario case :
- A programmable (empty) USB dongle appears on the market.
Can't be considered illegal or even hacking related since it's sold empty, without any code inside. Scene sites, beside that, publish code to put inside in order to create a GameOS patch applier through usb .

The exploit takes advantage of some unsecured usb management at boot time (heap overflow) in order to inject ppc code into PS3 memory and execute it. From there, GameOS changes can be done.

For now the known exploit works on all PS3's (all models) if they have exactly fw 3.41. But there is no reason to not have, in the future, adapted code for earlier fw versions (so you can keep OtherOS as well).

Once unsigned code is running under GameOS everything is possible.

So this thread is just to warn you that you should keep fw<=3.41 for a while...

Update :
Google "PSGroove" for compiled code and see source code here : http://github.com/psgroove/psgroove

Update :
More details about a possible Linux kernel running under GameOS at the end of this page :
http://ps3wiki.lan.st/index.php?title=PSJailbreak_Exploit_Reverse_Engineering
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ldesnogu



Joined: 17 Apr 2004
Posts: 97

PostPosted: Thu Sep 02, 2010 8:42 pm    Post subject: Reply with quote

ps2devman wrote:
The exploit takes advantage of some unsecured usb management at boot time (heap overflow) in order to inject ppc code into PS3 memory and execute it.

Doesn't this imply that future firmwares will be fixed to prevent the hack from working?
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yoshi314



Joined: 26 Jul 2008
Posts: 39

PostPosted: Fri Sep 03, 2010 1:57 am    Post subject: Reply with quote

this stuff is supposed to work regardless of firmware, to enable service mode.

so i think it's either on some ROM, or on a chip that's not flashed at all during firmware update, because it's supposed to work when all else fails.

it doesn't mean it cannot start being flashed with future fw updates, though.
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ps2devman



Joined: 09 Oct 2006
Posts: 271

PostPosted: Fri Sep 03, 2010 2:44 am    Post subject: Reply with quote

hard to say...
I heard that standard firmware update could trigger afterwards a blue ray driver firmware update. So it could also trigger firmware update of other mother board components...
Either Sony thought to have this ability for future or they never thought about it (I seriously doubt about it).
So the best bet is that it will be blocked in fw>3.41
The fact that the exploit has been nicely explained means cheap homebrew/linux solution for all of us but also means Sony will be able to release the blocking firmware update in the coming days for sure.

(Note that the decision of other os removal definitely lets devs loose about releasing free and explained exploits. Not removing other os would not have prevented ps3jailbreak to appear, probably, but devs thanking Sony for other os feature would not have joined the global hacking effort. So the other os removal has just made Sony situation even more painful, and impossible to resolve at planetary scale, since parts are cheap and easy to assemble, with the appropriate published knowledge)


Last edited by ps2devman on Fri Sep 03, 2010 5:45 pm; edited 1 time in total
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yoshi314



Joined: 26 Jul 2008
Posts: 39

PostPosted: Fri Sep 03, 2010 7:16 am    Post subject: Reply with quote

ps2devman wrote:
So the other os removal has just made Sony situation even more painful, and impossible to resolve at planetary scale, since parts are cheap and easy to assemble, with the appropriate published knowledge)
it's even better because it uses no sony code, so no legal issues there.

although backup manager has been obviously built with sony's ps3 sdk. but that's not our concern at all. i doubt the psjb team had a sony licence for it ;)
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Frek



Joined: 06 Dec 2007
Posts: 19

PostPosted: Sat Sep 04, 2010 7:43 am    Post subject: Reply with quote

yoshi314 wrote:
ps2devman wrote:
So the other os removal has just made Sony situation even more painful, and impossible to resolve at planetary scale, since parts are cheap and easy to assemble, with the appropriate published knowledge)
it's even better because it uses no sony code, so no legal issues there.

although backup manager has been obviously built with sony's ps3 sdk. but that's not our concern at all. i doubt the psjb team had a sony licence for it ;)


Even if they did, would they build with them? Maybe I'm paranoid but if I was in Sonys position I would certainly made sure the binaries was watermarked.

Regarding the exploit- The hack used to enter the system (via the USB exploit) is just so clever done.
If it's a true independently developed exploit- I would believe that the PS3Jailbreak been under development for quite sometime- ie. long before geohots hack surfaced.
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ps2devman



Joined: 09 Oct 2006
Posts: 271

PostPosted: Tue Sep 07, 2010 9:08 pm    Post subject: Reply with quote

I'm not very interested into touching either the ps3 firmware or its hard disk contents (so I won't install any 'package'). It would be less risky to try to download some code from ethernet and execute it from a on-the-fly patched lv2 kernel I think.
My main interest is homebrew able to use full power of RSX, including dynamic horizontal resolution changes (like in WipEout HD) and the optional stereoscopic 3D effects (I'm now equipped with that too).

As a reminder avoid fw>3.41 if you are interested in homebrew on ps3 slim units (or any other model of course), until psgroove team says otherwise.

For me it is obvious that in order to have homebrew on ps3 slim and blue-ray 3D support at the same time, two ps3's will be necessary. I'm afraid.

Safer legal way would be to dig a bit more into how to unlock full RSX power (ztile, zcomp) on ps3 fat with fw 2.01 (keys to decrypt fw are known now)


Last edited by ps2devman on Fri Feb 11, 2011 7:43 pm; edited 1 time in total
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ldesnogu



Joined: 17 Apr 2004
Posts: 97

PostPosted: Tue Sep 07, 2010 11:02 pm    Post subject: Reply with quote

ps2devman wrote:
As a reminder avoid fw>3.41 if you are interested in homebrew on ps3 slim units (or any other model of course), until psgroove team says otherwise.

It looks like the newly released fw 3.42 prevents the hack from working. Not surprising :)
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Rex_VF5



Joined: 26 Dec 2007
Posts: 50

PostPosted: Wed Oct 20, 2010 9:37 pm    Post subject: Reply with quote

It's already way further - see http://marcansoft.com/blog/2010/10/asbestos-running-linux-as-gameos/ He even mentions RSX:
Quote:
there is clearly full access to the RSX including 3D support, although we still need to learn a few details about how that works to be able to use it.
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