i am trying to install oracle 10g application server on Red Hat Advcance server 4 Update 2.

oracle installer check the requirements before it starts installarion and during checking, it returns the following error

*********************************************
Checking security kernel parameters
Checking for file-max=206173; found file-max=131072. Failed <<<<
Problem: The security parameters in the kernel do not meet the minimum requirements (see above).
Recommendation: Perform operating system specific instructions to update the kernel parameters, namely BIT_SIZE and noexec_user_stack.
*********************************************

Can anyone please tell that what is the problem???

another problem (not related to the above problem) is that when i issue the statement

[root@nisar ~]# sysctl -a | grep sem

I face the following problem

*****************************
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe3'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe2'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe1'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe0'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe'
kernel.sem = 100 256 100 100
[root@nisar ~]#
******************************

i really didnt touch sysctl.conf

What might be the problem?
Regards

That's a higher file-max value than I thought you'd need. For making sure you're pre-requisites are correct, there's a good document at http://www.puschitz.com/InstallingOracle10g.shtml that I've used to install Oracle 10g on Redhat and Slackware based systems.

As far as the dev.parport.parport0 sysctl keys, they are added to the /proc file system by including parallel port support when you compile your kernel. There is more info on the parallel support and what it does on systems using /proc support in the docs that come with the kernel sources (Documentation/parport.txt). It shouldn't affect your Oracle installation though.

can you please answer the following???
After a very new installaion and without touching any thing, why this error message is being returned and whats the solution? i m very much new in linux


[root@nisar ~]# sysctl -a | grep sem

I face the following problem

*****************************
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe3'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe2'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe1'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe0'
error: unknown error 0 reading key 'dev.parport.parport0.autoprobe'
kernel.sem = 100 256 100 100
[root@nisar ~]#
******************************

sysctl -a reads the all the keys under /proc/sys so what you're seeing is not an error in the configuration of your system. sysctl is reading the keys that are put there by the parallel port driver and doesn't recognise them. You don't need to do anything about them unless you are having problems with your parallel port devices.

If you want to see what those keys contain, try running cat /proc/sys/dev/parport/parport0/autoprobe. The file will probably be empty unless you have a parallel port device that was successfully probed in which case you will see any IEEE-1284 device ID information that has been acquired from the (non-IEEE 1284.3) device or any IEEE 1284 device ID information retrieved from daisy-chain devices that conform to IEEE 1284.3 (Documentation/parport.txt).

You can hide the message (this doesn't change the configuration of your system, the keys are still there) with: