PS2_Netemu
HDD KELF Magicgate for fsck.elf & osdmain.elf
not sure it differs for PS2_Softemu or other bioses or HDDs.
I was using the fake 40GB drive image created with pcsx2 & uLE formatted.
Update: Also here is the extra hidden MBR kelf in the
MBR partition?
found in hexeditor opening the dev9hdd.raw as hdd/floppy disk with 512 sector.
dev_hdd0/game/PS2U10000/USRDIR/INSTALL/IMAGE.DAT? can be 10GB?
This was the one pcsx2 was complaining about in the debugger log from my previous post:
https://www.psx-place.com/attachments/img_20250930_000900-2-jpg.46714/
IMAGE.DAT: KELF
Shows the region as 3?
4GB seems to be the smallest HDD you can make in pcsx2, if you run IMAGE.DAT as dev9hdd.raw it gets formatted as a 4GB HDD if you don't touch the size preset.
When you run SOCOM II U.S. Navy SEALS it creates a 512MB partition for the Downloadable maps as
PP.SCUS-97275...SOCOM_II
after you enable HDD under options it also creates a save file on memory card 1.
OPSM US PS2 Demo 87 SCUS-97340 contains the
"After Hours" map, which gets installed into the HDD partition as RUN/MP63.CDB, it's the smallest disc of the set with HDD content, the iso is around 1GB.
Demo 90 contains all three Downloadable maps.