Not sure what you are looking for since you would not really do the same type of rebuilding of the kernel in Solaris 8 as you would in Freebsd. You can change some parameters but you don't recompile the kernel in Solaris 8. You can check the man page for system (4) for more info.
From SunSolve (note the second line):
Quote:
The SunOS[TM] 2.X kernel modules are automatically loaded when needed.This makes rebuilding the kernel unnecessary.
There are parameters for the kernel and kernel modules that can be tuned. However, it isn't necessary to change these parameters, exceptunder special circumstances.
The module variables associated with semaphores are:
Parameter Default Description
--------- ------- -----------
seminfo_semmap 10 Number of entries in the semaphore map
seminfo_semmni 10 Number of semaphore identifiers
seminfo_semmns 60 Number of semaphores in the system
seminfo_semmnu 30 Number of undo structures in the system
seminfo_semmsl 25 Maximum number of semaphores, per id
seminfo_semopm 10 Maximum number of operations, per
semaphore call
seminfo_semume 10 Maximum number of undo entries, per
process
seminfo_semvmx 32767 Semaphore maximum value
seminfo_semaem 16384 Adjust on exit maximum value
1. Enter a line in the /etc/system file, using the following
syntax:
set semsys:seminfo_variable=value
For example, to increase seminfo_semmap from the default of 10 to 20,
add the following line to the /etc/system file:
set semsys:seminfo_semmap=20
2. Reboot the system
The kernel parses the /etc/system file during autoconfiguration
and overrides the default value for the parameters specified
in this file.