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Marcan Names PS3 Linux Bootloader on Firmware 3.41 AsbestOS


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199w ago - Nintendo Wii developer Marcan has been sharing updates via [Register or Login to view links] on his progress with a PS3 Linux bootloader, one that is currently working on PlayStation 3 Firmware 3.41 (including on the PS3 Slim) and now named AsbestOS.

Download: AsbestOS ATMega Port with Software USB (Arduino Mega)

Below are some of his recent Tweets for those curious, to quote:

"AsbestOS port to the ATMega with software USB (Arduino Mega, etc...) [Register or Login to view links]

Investigating how RSX access will work. It's definitely possible but it might end up very different from desktop Linux 3D as we know it.

[Register or Login to view links] git repo if you want to follow along. No support or docs yet, it's not done, don't ask, but feel free to peek.

Preliminary porting notes: [Register or Login to view links]. If you have developed or ported a version of the exploit, please let me know your comments

The device I'm using to test is an IGEPv2 (OMAP3, same as the Beagleboard, N900, Palm Pre, ...).

It doesn't mean I'm going to somehow deliberately screw you over, it means if your device can't handle a custom 40KB payload, then it can't.

"non-generic psjailbreak clone" means "cheap closed low storage probably unupgradable device designed with no future-proofing in mind".

Any non-microcontroller devices will work. Phones, iPods, other media players or portable consoles, etc.

Users of non-generic psjailbreak and clones are probably SOL though (that's what you get for buying essentially a dedicated piracy device).

To clarify, you need at least a 64K (not 32K!) micro *or* a device that has at least 64K extra external storage (SD, Flash, EEPROM).

[Register or Login to view links] working a bit better now

Confirmed that it works (to the same extent) on the Slim too

[Register or Login to view links] It's alive! Mostly, anyway.

I bet you've never seen a Linux kernel say this: [ 0.000000] PS3 firmware version 3.4.1

Wasted like an hour debugging a bootwrapper that was working perfectly, except noone documents this stuff. dtbImage.ps3 != zImage.ps3

That wasn't too bad. Threads caught.

Next headache: catching *both* CPU threads from lv2.

AsbestOS (yeah, I'm calling it that) now works on the PS3 Slim (still doesn't quite boot Linux, though)

I can TFTP-load a kernel now, though it doesn't exactly boot yet. More tomorrow, hopefully.

There are two stages. Stage1 replaces the usual psjb payload (2kB or so) and loads stage2 via USB (30kB currently)

The Teensy will NOT work without external mem (32K Flash). The Teensy++ and the AT90USBKEY SHOULD be enough (128K Flash).

By the way, if anyone wants to run this Linux loader from a hardware dongle, make sure you get something with at least 64k of storage!

IP stack = done (lwIP FTW). 64 bytes from ps3 (192.168.3.60): icmp_req=1 ttl=255 time=0.361 ms

I suck at names. Help me name a usb-exploit PS3 Linux bootloader? All i came up with so far is lv2ate ("levitate") and AnotherOS.

Last tweet brought to you by LPAR, VAS, HTAB, TLB, SLB, DMA, BI, PU, RM, PME, HPTE, VSID, ESID, AVPN, RPN, WIMG, GELIC, and, of course, LV1.

http://is.gd/fj0dK sent from a USB lv2 payload using raw lv1 syscalls. And now I can finally go to sleep today.

Ha, Linux got owned by *exactly* the same bug that the 360 hypervisor had: comparing 32b of a system call no., then using 64b. (via tmbinc)"





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Comments 35 Comments - Go to Forum Thread »

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pip1's Avatar
#25 - pip1 - 199w ago
Why so much effort for linux? I get the idea that running linux on a ps3 is cool and all but there is still the problem that without a driver for the rsx linux on ps3 will allways be crippled. Before Geohot released the exploit he had he said he did not want to do so unless someone could explain in detail what the hypervisor was restricting as far as a gpu driver is concerned.

Nobody responded (at least publicly) which combined with the fact that nouveau drivers are still nowhere as good as the nvidia version would basicaly show that there will never be a ps3 linux gpu driver. (too much effort for lackluster results).

Zeratul's Avatar
#24 - Zeratul - 199w ago
No. This exploit load Linux Kernel as LV2 application (as GameOS or old OtherOS).

But more powerful then simple OtherOS on PS3 fat. Becose linux loaded by this payload will have access to all memory.

lolster's Avatar
#23 - lolster - 199w ago
Would this be integrated in the XMB or would we have to run it as homebrew?

Djhg2000's Avatar
#22 - Djhg2000 - 199w ago
Does this fully boot though? I thought there was a kernel panic bc we have no working fs?
Not if we supply a suitable initrd image in the netboot image, remember; rootfs root (/) is in RAM because it's a special semi-pseudo filesystem.

Hmm... marcan42, if you're reading this, you should try appending "root=/dev/rd/0" to the kernel command line to attempt a completely HDD-less boot.

Zeratul's Avatar
#21 - Zeratul - 199w ago
But do not use my mirror for real testing. Repository updates come usually, but I'm clone this repository only one time.

You must check repository for new commits before compilation.

Does this fully boot though? I thought there was a kernel panic bc we have no working fs?
I think it's a begining. This news and repository for developers only. We must wait for complete solution. But this news and code - it is real proof of linux on PS3.

In PS3 linux - We trust!

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