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  1. #1
    Forum Moderator PS3 News's Avatar
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    Graf Chokolo Releases PS3 Linux Kernel, OtherOS++ Project


    Following up on his previous update, over the weekend PlayStation 3 hacker Graf Chokolo has released his PS3 Linux 2.6 Kernel and began documenting his PS3 CFW Custom Firmware with OtherOS++ Project.

    His new PlayStation 3 Linux Kernel includes a new HDD, FLASH, VFLASH and RAM drivers for PS3 and AsbestOS users can use the drivers as well.

    Download: http://git.dukio.com/gitweb.cgi?p=linux-2.6;a=snapshot;h=b0fd285df1f5d67002cc94bbdc11928ced191734;sf=tgz

    To quote: The repository which is based on Linux 2.6 kernel, has several wicked stuff in it especially graf_chokolo’s ram block device. As kmeaw said; “It can read/write anything in PS3 RAM, and very useful for HV hacking”

    You can read below the commits done to his version of Linux kernel.
    • Added support of several storage regions to PS3 storage library
    • Improved PS3 disk block device driver
    • New drivers for PS3 NOR and 3 RAM misc driver for full access to HV memory
    • Added new HV calls
    • Added extra debug messages for SPU isolation

    Finally, from http://ps3wiki.lan.st/index.php/Custom_Firmware_with_OtherOS%2B%2B: PS3 CFW Custom Firmware with OtherOS++
    • First we need a custom Hypervisor (lv1.self) with OtherOS++ support and other nice features like full access to HV services :-) (working on it)
    • Second, we need a program like otheros.self which will resize VFLASH region and store there petitboot
    • Third, we need a GameOS program/XMB plugin which will trigger OtherOS++ boot after GameOS reboot by setting a flag on the 5th VFLASH region

    Graf Chokolo Releases PS3 Linux Kernel, OtherOS++ Project

    More PlayStation 3 News...

  2. #2
    Senior Member Denida's Avatar
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    Yes, saw him commenting on that on grafchokolo earlier today, is very promising with return of full OtherOS, so looks very promising!

  3. #3
    Senior Member EiKii's Avatar
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    sweet mama, good work this is really getting intresting

    Keep up the good work!

  4. #4
    Senior Member daveribz's Avatar
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    Wow, this seems VERY promising. I like the idea of having petitboot, which will simplify the switch between GameOS and OtherOS. All the work graf_chokolo put on HV hacking is awesome! Finally an unrestricted system! Looking forward to this. We will probably be able to triple-boot soon; imagine GameOS fw.355 + GameOS fw.356 + Ubuntu = freaking sweet!

  5. #5
    Senior Member Denida's Avatar
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    The development of Linux' return on PS3 has been developing a good deal last two weeks from AsbestOS from 1.5 to 3.0 version and loading through USB media, to this very intering (and desired) development to give it full OtherOS back.

    Very much anticipating this

  6. #6
    Senior Member condorstrike's Avatar
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    now we're talking... and so close to launching from xmb, Graf Chokolo ftw.

  7. #7
    Contributor edwardecl's Avatar
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    Nice, but asbestos can already boot Linux from the internal HDD using the linux.img on the root of the filesystem...

    Making a new firmware and booting it from vflash seems a bit OTT compared to that unless it has more features or is a bit quicker or something?

    I'd rather mount the ps3 filesystem in Linux and boot from that rather than partitioning, if only someone could make a way of decrypting the ps3 filesystem...

    as for the kernel , full access to the GFX ram? does that mean we can actually use the video ram as ram instead of swap space now? if so does someone have a compiled kernel?

  8. #8
    Senior Member Brenza's Avatar
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    Wow, i'm really happy, thanks! =D

  9. #9
    Senior Member joffe's Avatar
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    Quote Originally Posted by edwardecl View Post
    Nice, but asbestos can already boot Linux from the internal HDD using the linux.img on the root of the filesystem...
    Yes, but even asbestos V15 is a somewhat crappy solution and more the like a POC. The kernel is packed besides stage1/2 loaders to asbetos.bin in USRDIR - which seems to be copied to /dev_flash as lv2_kernel.self - so if you want to build your own kernel for your favorite distro (I use gentoo) you have to install all modules to linux.img but also need to build a new asbestos.pkg containing the new kernel, install that etc. Several linux.img's around suffer from the problem of incompatible kernel/module version. IMO graf_chokolo's way is the best to go, simply put improved petitboot to vflash that boots off your kernel that has to be in your linux.img, reading parameters from your kboot.conf

    Quote Originally Posted by edwardecl View Post
    I'd rather mount the ps3 filesystem in Linux and boot from that rather than partitioning, if only someone could make a way of decrypting the ps3 filesystem...
    graf_chokolo stated already that he is able to mount the ps3 ufs so partitioning won't be necessary, an image file or bundle would work.

    Quote Originally Posted by edwardecl View Post
    as for the kernel , full access to the GFX ram? does that mean we can actually use the video ram as ram instead of swap space now? if so does someone have a compiled kernel?
    can't imagine that gfx ram as additional memory is an option, read-speed is far too slow, even slower than reading data from harddisk.

  10. #10
    Senior Member barrybarryk's Avatar
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    no, if you want to use the ps3vram as swap space you can, its quicker than a hdd but there's only 256MB of it, which isn't really enough for swap, better off making a 1GB loopback on the hdd and using that. I'll just be glad when I can install a decent bootloader again for ydl6.2 and zerogame

 


 
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