topic Re: kernel config in Operating System - HP-UX

kernel config

amit singh_3 — Sun, 22 Feb 2004 04:22:21 GMT

Have wanted to change the "maxswapchunks"
kernel parameter.
but after changing the parameter by "kmtune" command it is showing me new value in "planed" field.
after rebooting the system it is still showing the old value, why?

pls reply me.

Amit singh

Re: kernel config

Karthik S S — Sun, 22 Feb 2004 04:27:56 GMT

Hi Amit,

Most of the Kernel parameters require a kernel reconfiguration and a reboot to take effect. Note that you need to reconfigure the kernel before you reboot the system.

Refer,
http://docs.hp.com/hpux/onlinedocs/TKP-90202/TKP-90202.html

kmtune -l will show you if a parameter is static or dynamic (that doesnt require a reboot)

-Karthik S S

Re: kernel config

Anita Kelkar — Mon, 23 Feb 2004 02:11:24 GMT

Hi Amit,
You need to rebuild the kernel using "/usr/sbin/mk_kernel -o /stand/vmunix" .
Once this is done, then reboot the system. You can do all this using "SAM" .

thanks
Anita

Re: kernel config

kamal_9 — Mon, 23 Feb 2004 02:17:09 GMT

hi
amit cahnge the value and move the old kernal as vmunix.old nad rebulit the kernal.then you can reboot the machine with new kernal

Re: kernel config

amit singh_3 — Mon, 23 Feb 2004 02:19:11 GMT

hey ,

Have allready tried all the things,
after changing the parameter with "kmtune"
it showing me the new value in "planed"
field by "kmtune -l -q" option.
but after rebuilting the kernel it is
showing me the old value only.

thnks for replying me.

Amit singh

Re: kernel config

Sanjay Kumar Suri — Mon, 23 Feb 2004 02:23:12 GMT

You need to do the following before boot:

SAM -->Kernel Configuration --> Configurable Parameters --> Actions --> Apply Tuned Parameter Set

sks