How to configure kernel parameters shmmin and shmseg in RHEL 5? - Red Hat Customer Portal

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Issue

Getting the following error when trying to configure shmmin and shmseg in Red Hat Enterprise Linux 5.4.

#sysctl -w kernel.shmseg=128; sysctl -w kernel.shmmin=1 
error: "kernel.shmseg" is an unknown key 
error: "kernel.shmmin" is an unknown key

How to change kernel.shmseg in RHEL5 default is much more higher but when i have to check it's impossible to change kernel.shmeg default value in RHEL5 because kernel.shmseg values hardcoded.

Environment

Red Hat Enterprise Linux 5.4
shared memory

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