If you want to choose your own home-grown kernel and/or modules tree before the nodes have been installed, see http://oscar.ncsa.uiuc.edu/oscar for a nifty tool to do that. But the standard smp and up kernels should be installed on the nodes. If you just want the nodes to boot the redhat up kernel already there, do this:
If the nodes are using lilo (they have an /etc/lilo.conf file), copy the /etc/lilo.conf file from one of them up to the server like this (assuming your first node is named c1 and that you're one of those cool people that prefer emacs):
# scp c1:/etc/lilo.conf /tmp
and then change the line that starts with "default=" to reference the up kernel. For instance, the relevant sections before and after might be:
=============================================================
...
# the default label to boot
default=2.4.7-10smp
...
image=/boot/vmlinuz-2.4.7-10smp
label=2.4.7-10smp
...
image=/boot/vmlinuz-2.4.7-10
label=2.4.7-10
..
==============================================================
...
# the default label to boot
default=2.4.7-10
...
image=/boot/vmlinuz-2.4.7-10smp
label=2.4.7-10smp
...
image=/boot/vmlinuz-2.4.7-10
label=2.4.7-10
..
==============================================================
Don't forget to copy the new /etc/lilo.conf file to all the nodes with cpush, and then
use cexec to execute the "/sbin/lilo" command with exec, maybe like this:
# cpush /tmp/lilo.conf /etc/lilo.conf
# cexec /sbin/lilo
After that, the next time the nodes reboot they should boot with the up kernel.
You can reboot all the nodes with this command:
# cexec '/sbin/reboot &'
If you need to put your own kernel in after the nodes are installed, do the same kind of thing and substitute your own kernel after placing it in /boot on all the machines.
At 10:40 AM 7/16/2002 -0500, Ravi Srinivasan wrote:
I am using OSCAR on a cluster with RH 7.2. Is it possible to replace the smp kernel on the nodes with a up kernel without reinstalling?Thanks, Ravi ------------------------------------------------------- This sf.net email is sponsored by: Jabber - The world's fastest growing real-time communications platform! Don't just IM. Build it in! http://www.jabber.com/osdn/xim _______________________________________________ Oscar-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/oscar-users
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