post/wait installation error ora-21746

I have recently installed Oracle 8.1.6 on Sun Solaris 2.51. I could not create database through database assistant i got the following error
ora-21746 - post/wait installation failure.
The RAM is 512MB
the kernel settings are as follows:

SHMMAX - 4294967295
SHMMIN - 1
SHMMNI - 100
SHMSEG - 10
SEMMNS - 200
SEMMNI - 70
SEMMSL - 50 (Equal to 50 processes in init.ora)

so i have abondened the database creation through database assistant, and instead decided to do it after starting the instance. I gave the following command and still i got the same error.

SVRMGR> connect internal
SVRMGR> startup nomount



Please help me to solve the problem.
thanks in advance
dwaraka

[Edited by dwaraka on 03-11-2001 at 03:15 PM]

HI,
SHMMAX values should be 0.5*physical memory present.
Change this and give a try.

Did you reboot the box, After you made changes to the system file.

If not do it. i think this will solve your problem.

Thanks.