Tunning maxdsiz_64bit

[catastro]

Hi, I have to change some kernel parameters on some systems and in one of them, in the maxdsiz_64bit when I try to use the kmtune -s maxdsiz_64bit=new_value it tells me that value does not exists, and executing the command kmtune it does not appear, and in others it does. Is this because it is not being used or something like this?
In the systems that this parameter appears, the command to execute is the same as I wrote before, I ghuess.
And one last thing, I guess after this I have to do:

# mk_kernel -s system
# mv /stand/system /stand/system.prev
# /usr/sbin/kmupdate
# shutdown -r -y 0

Or should I move the old one before, then make the kernel, update it and then reboot?
Thanks in advance

[Steven E. Protter · Accepted solution]

Shalom

Your procedures as posted are incomplete.

See this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=105739

SEP

[catastro]

Thanks Steven, I took a look at the post in the form you sent me, and I reviewd the steps, and these are the ones I belive should be now, aren't they?

#cd /stand
#cp vmunix vmunix.old
#cp system system.old
#cd build
#mv /stand/system /stand/system.prev
#/usr/lbin/sysadm/system_prep -s system

Edit system file and make changes.

# mk_kernel -s system

The new kernel will be created in /stand/build. Copy this to the original location.

#cd /stand/build
#cp vmunix_test /stand/vmunix
#cd /stand
#cp system /stand
#/usr/sbin/kmupdate
#shutdown -r -y 0

[Jaime Bolanos Rojas.]

Catastro,

You are just about right, this are the steps that I have:

1- cd /stand/build

2- /usr/lbin/sysadm/system_prep -s system

3- use kmtune do the changes or kmsystem or kdadmin

4- while in /stand/build
/usr/sbin/mk_kernel -s ./system

5- cp /stand/system /stand/system.old
cp /stand/vmunix /stand/vmunix.old
cp -R dlkm dlkm.vmunix.old

6- schedule installation with kmupdate
copy /stand/build/system to /stand/system

7- shutdown -r 0

8- check that the changes took effect.

Regards,

Jaime.

[catastro]

Thanks to the two of you for your advices. I just made my steps now clear and update the kernel. Again, thanks.