I found a way to get HP drivers working without floppy or cd/dvd. I will explain steps to make it go:
1. Unpack CPQary3-1.92-solaris10-i386.tar.gz and copy DU directory to usb flash 2. Start solaris install, select 5 to put additional driver, insert usb flash and select 3. This will fail with message "Can't find install script /tmp/ITUs/000/DU/sol_210/i86pc/Tools/install.sh." But look lines before that, you will see path to your usb flash disk, something like /dev/dsk/c2t0d0p1, remember that or write it down. 3. Press e to return to starting menu and select 6, single user shell 4. mkdir /tmp/test 5. mount -F pcfs /dev/dsk/c2t0d0p1 /tmp/test (just put right path to usb dev) 6. cd /tmp/test/DU; mv SOL_210 t; mv t sol_210; cd sol_210; mv I86PC t; mv t i86pc; cd i86pc/Tools; mv INSTALL.SH t; mv t install.sh; rm -rf /tmp/ITUs/*; cd /tmp; umount /tmp/test; logout; 7. You are in start menu again, select 5 then 3 and drivers gets loaded to miniroot. Seems this was a problem with letter case. -- This message posted from opensolaris.org