You need ....
1. HDLOADER.ELF (must have 674.060 Bytes) for the MC Exploit
2. sjuncrunch (to uncrunch the .ELF) ->try to google
3. ps2packer (to crunch the pachted .ELF) -> try to google
Make a Folder and put all the Files inside!
Uncrunch the HDLOADER.ELF
Go to CMD (command.com) and enter the Folder that you created!
Type: sjuncrunch hdloader.elf unhdloader.elf
The New File unhdloader.elf have yet 2.977.792 Bytes.
Open the HEXEditor and go to Location 0x00001488
Replace "2E 01 04 0c" with "00 00 00 00"
Go to CMD.
(Don't Forget to rename the orginal HDLOADER.ELF to Backup or something)
Type: ps2-packer unhdloader.elf hdloader.elf
After a moment you will read this Message:
File compressed, from 2977792 to 629264 bytes, ratio = 78,87%
Now its finished!
Put the New HDLOADER.ELF to MC and replace the old there!
Yet you can BOOT your PS2 without a PSX CD