As most of us know, developer marcan was working on a Linux bootloader for firmware 3.41, the only problem he had, was choosing a name, well he has settled on AsbestOS, here is the tweet where he reveals the name and a few after regarding the bootloader.
AsbestOS (yeah, Iím calling it that) now works on the PS3 Slim (still doesnít quite boot Linux, though)
Next headache: catching *both* CPU threads from lv2.
That wasnít too bad. Threads caught.
Wasted like an hour debugging a bootwrapper that was working perfectly, except noone documents this stuff. dtbImage.ps3 != zImage.ps3
I bet youíve never seen a Linux kernel say this: [ 0.000000] PS3 firmware version 3.4.1 http://is.gd/fBv7U
Itís alive! Mostly, anyway.
Confirmed that it works (to the same extent) on the Slim too
source : http://www.ps3hax.net/2010/09/asbestos-the...-firmware-3-41/