topic rebuild kernel, on-line in Operating System - HP-UX

rebuild kernel, on-line

Victor_5 — Thu, 06 Sep 2001 00:18:07 GMT

11.0, how to rebuild kernel, on line?

Re: rebuild kernel, on-line

Michael Tully — Thu, 06 Sep 2001 00:46:29 GMT

Hi Shawn,

as root

# cd /stand/build
# /usr/lbin/sysadm/system_prep -s system
# vi system (and add make your changes)
save file

# /usr/sbin/mk_kernel -s system
# /usr/sbin/kmupdate

Take note of the existing kernel name, probably vmunix.prev
# cd /

Reboot or shutdown

HTH
-Michael

Re: rebuild kernel, on-line

James R. Ferguson — Thu, 06 Sep 2001 00:54:10 GMT

Hi Shawn:

Make any kernel parameter changes with 'kmtune':

# kmtune -s = -S /stand/build/system

# cd /stand/build

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

# /usr/sbin/mk_kernel -s system

# mv /stand/system /stand/system.prev

# mv /stand/vmunix /stand/vmunix.prev

# mv /stand/dlkm /stand/dlkm.vmunix.prev

# mv /stand/build/system /stand/system

# kmupdate /stand/build/vmunix_test

# shutdown -ry 0

...JRF...

Re: rebuild kernel, on-line

Victor_5 — Thu, 06 Sep 2001 01:40:29 GMT

Hi Friends:

Thanks a lot for your quick responses.

However, I am looking for a method to rebuild kernel without shutdown?

Re: rebuild kernel, on-line

Michael Tully — Thu, 06 Sep 2001 01:50:48 GMT

Hi Shawn,

Once you have rebuilt your kernel you not
obligated to reboot straight away, however
in saying that, the changes that are made
using the procedures given to you will not be
available until the reboot has been
performed and the /stand/vmunix file has been
loaded into memory.

HTH
-Michael

Re: rebuild kernel, on-line

James R. Ferguson — Thu, 06 Sep 2001 01:53:34 GMT

Hi Shawn:

Tuning the kernel dynamically without a reboot appears doesn't appear until 11.11. Even then, some parameters remain "static". That is, their adjustment requires a reboot. Other parameters are defined as "dynamic" and can be tuned without reboot.

Kernel rearchitecture is a very active project. In addition to dynamic parameters, self-tuning ones will appear in new releases. Old names, like 'nproc' and 'nfile' will also become aliases for more descriptive identifiers.

Regards!

...JRF...