as openboot already providing drivers for attached devices
then whats the need for sun operating system to load again new device
drivers upon booting ?
can;t it use openboot device drivers to handle attached
Solaris can't use openboot drivers, as openboot is not Solaris, and is fact cannot even be qualified as an operating system, it is a "monitor", or single program running on top of the hardware, without an O/S layer.
Driver's APIs are thus different.
can we write forth programs and use openboot to execute at openboot
you certainly can. this is documented in the openboot command reference manuals.
suppose i want to read a file "abc" from harddisk at openboot prompt.
Is itpossible ? as openboot will contain driver for attached harddisk ,
for how it knows about file system ?
I don't think there is a command to load a forth script file from disk to be executed, nor to allow the forth script to read data from a text file, but I may be wrong.
The load command, howerver, allow to load and run a binary file.