My Powerbook Pismo works OK on Panther (10.3.4 or 10.3.5).

I recently changed my hdd and use the old one (20 MB) as an usbdisk.

I've no problem to use it.

If I update my system to 10.3.8 (same thing happens to 10.3.7 and
10.3.6), I can't no more mount my usbdisk (the hardisk utility don't
shows it !).

Can you give me a trick to make the new macos update & my usbdisk work
together ?

Many thanks,