FreeDVDBoot
PlayStation 2 DVD Player Exploit. This allows you to burn your own PlayStation 2 homebrew discs and play them on an unmodified console as seen in the demo video. With uLaunchELF as the initial program, users can include multiple homebrew programs on the same disc.
For technical details please refer to my blog post.
Step 1: Identify your DVD Player Version
Boot your PlayStation 2 without any disc inserted, and press Triangle to identify which DVD Player version your console has.
For initial release only DVD Player version 3.10E is supported (as that's the console I have). In the future I may look at other firmware versions, and hopefully over time other developers from the scene will also contribute support for additional DVD Player versions.
Pre-built ISO files for supported DVD Players containing just uLaunchELF are provided in this repository for ease of use (which can be used to boot homebrew over USB storage), such as 3.10E.iso. If you intend to make your own image containing additional homebrew / modified initial loader, please read on.
Step 2: Copy your homebrew
Once you've identified your console's DVD Player version, copy all of the homebrew you would like to include on the disc into that directory (EG: 3.10E/).
Step 3: Make an image
Once you've placed all the homebrew files you'd like into the directory, generate a UDF image of the directory. The easiest way is probably to install genisoimage and run the following (where exploit.iso is the output and 3.10E is the directory containing VIDEO_TS and any homebrew):
genisoimage -udf -o exploit.iso 3.10E
Step 4: Test and burn
I would recommend you test in PCSX2 first, but since PCSX2 doesn't support loading the DVD Player, you have to decrypt and repack it yourself, which is beyond the scope of this README. With that said, if you aren't touching anything in VIDEO_TS, there shouldn't really be any reason for the exploit to fail.
OPTIONAL: Replace the initial program
I've included uLaunchELF recompiled with DVD support as the default initial program. It presents a menu which allows you to select any of the homebrew programs you chose to include on the disc (and also allows booting from USB).
Alternatively, if you would rather just boot into a single homebrew application, the initial program the exploit attempts to boot is located at VIDEO_TS/VTS_02_0.IFO, replace it with your desired ELF file, with the below caveat that compatibility might be lower than if you booted a program through uLaunchELF:
For the initial release, I didn't bother to reimplement a couple of functions used by the loader, so it requires that the ELF you load doesn't overwrite those functions I use (those are around 0x84000 - 0x85fff and 0x250000 - 0x29ffff). I will probably remove this limitation in the future, but all ELFs I could find were fine with this limitation.
You can run readelf -l to verify your executable satisfies this requirement. For example, this Tetris homebrew just uses 0x00100000 - 0x0017a940:
$ readelf -l VTS_02_0.IFO
Elf file type is EXEC (Executable file)
Entry point 0x104490
There is 1 program header, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x001000 0x00100000 0x00100000 0x72ef4 0x7a940 RWE 0x1000
Section to Segment mapping:
Segment Sections...
00 .text .ctors .dtors .rodata .data .jcr .sdata .sbss .bss
DEVELOPMENT: Replacing the loader payload
The default payload will boot VIDEO_TS/VTS_02_0.IFO as an ELF file, but tweaks might be desired to improve compatibility, or maybe changing the behaviour to boot BOOT.ELF instead for instance.
If you wish to update the loader payload, run build.sh inside PAYLOAD directory, and copy the output fullpayload.bin to VIDEO_TS/VIDEO_TS.IFO at offset 0x2bb4 (for 3.10E).