I have a little eee pc 900 netbook that I somehow installed OpenBSD 6.6 on a few years ago. Recently I thought I’d give Haiku a shot, but the netbook will not boot from anything USB.
I know the BIOS is up to date on the final version 1006. Just to be sure, I reflashed it, from a FAT16 128MB USB drive (by pressing ALT+F2 at boot with the bios file 900.ROM on the stick).
I have tried numerous SMALL USB sticks (2 GB and smaller) with Damn Small Linux, Tiny Core Linux, and Haiku (32bit) and the laptop never sees the sticks: pressing escape during POST brings up the boot device selection menu and it only shows the internal 4GB (not msata, but some weird old Asus thing–so I can’t stick it in another computer) hard drive.
I have tried booting to the BIOS by hitting F2 during POST. The USB drives are never visible in the list of boot devices. I even tried an old USB CD ROM drive and burning Damn Small Linux to CD. The netbook doesn’t see the drive. I tried a spinning hard drive in a USB enclose, nope netbook didn’t see it. Tried a 2GB SD card…not seen either.
I have tested all these prospective USB boot devices in other old (non-EFI) computers and they boot fine.
Is my eee PC 900 just broken?