A new version of XBReboot has been released already with a new patch (PIRS support) and fixed XeLL. XBReboot is an image you can flash on your onboard NAND that will allow you to 'reboot' a JTAG-exploitable 360 in a patched 8955 kernel which makes homebrew XDK possible (unsigned XEXs etc). The released image is just for Xenon motherboards, but the readme states it could easily be made for other 16mb-nand motherboards, so I guess we'll see support for those soon.
It comes with a readme this time, so we now get some official details:
* XBReboot Block Layout:
Ox00 – 0x2F 4548 boot FW
0×30 – 0x3F Backup Xell
0×40 – 0x4F XBRfw.bin Rebooter core
0×50 – 0xBF Patch.bin Kernel and patches
0xC0 – 0x?? Flash file system
* Version: XBRfw 0.5beta Initial
The fw version need not change for any given Patch.bin
Patch.bin is what needs to change for any new patch
* The following are Patch.bin versions
Don't need xextool:
automatically detect correct key for dev or retail xex.
Drag and drop any xex to cdr.
No specific secdata.bin or crl.bin requirements.
Add support for PIRS
Fixed Backup Xell
1) Extract KV and Config blocks from orig.bin
nandpro orig.bin: -r16 rawkv.bin 1 1
nandpro orig.bin: -r16 rawconfig.bin 3de 2
2) Inject those blocks into XBR.bin
nandpro XBR.bin: -w16 rawkv.bin 1 1
nandpro XBR.bin: -w16 rawconfig.bin 3de 2
3) Flash result
nandpro lpt: -w16 XBR.bin
There is no need to unpack and repack pirs files! This is a limitation of freeboot. Not XBR. Aside from that major difference, all functionality is the same.
Individual sections can be updated or extracted separately using nandpro.
The image can be made to work for all 16M consoles.
The standard method of using build.py can be used to change the 4548 boot FW portion of the flash to the console type.
Create the image as described above.
The command to rebuild it might look like this:
build.py XBR.bin CB CD update.bin xell-1f.bin XBRfw.bin smcp.bin
Then the .ecc file result from build.py would be "flashed" back into the XBR
nandpro XBR.bin: -w16 image_00000000.ecc
Official Site: n/a, by ?
Download: n/a (might be illegal under DMCA/EUCD)
Original Source: Xbox-Scene