If you aren't locally connected to a GSP and want to upgrade the firmware, you can do it via the lan console. You'll have to either be connect via local console or via the GSP's internal port.
All of the following information was gleaned from:
to get the version of the GSP: the 'he' command will show version in the first line of output:
Hardware Revision 8 Firmware Revision A.01.10 May 24 2001,11:05:55
to access the GSP via the "internal port", which might not work on all GSP versions:
create the device file for the gsp internal port, delete device file when done for security reasons:
mknod tty1p0 c 1 0x010000
vi /usr/lib/uucp/Systems and add the following line exactly:
gspiport Any;5 gspiport,f900 - ''''\r\d\r\d\r ogin:-BREAK-ogin: uucp asswrd: uucp-BREAK-ogin: uucp asswrd: uucp
vi /usr/lib/uucp/Devices and add the following exactly:
gspiport tty1p0 - 9600 direct
cu -l /dev/tty1p0
do the firmware upgrade via the XU command.
to exit the cu command type the following two characters: ~.
download latest gsp revision A firmware from: http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1190612