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
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!
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.
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
Originally Posted by edwardecl
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.
Originally Posted by edwardecl
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.
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