I am familiar with Debian based distros and now I have to administer CentOS machines.
I have two CentOS 4.4 machine and I both applied
yum upgrade
on them and they are both (lsb_release -a) 4.9 final now.
However when I looked the kernel version
uname -ar
One of them
Machine A: 2.6.9-42.0.3.ELsmp
Machine B: 2.6.9-42.0.8.ELsmp
Then I copied Machine B's CentOS-Base.repo file to Machine A then copied B's yum.conf to A and I retried but yum upgrade but A's kernel version is still same. What can I do? What do I miss?
Thanks
Best Answer
you have to reboot for the kernel to actually update, at that point, uname will give the correct results.
its worth pointing out that centos4 is now only on maintenance updates so you may want to consider also planning for a larger update to a later version of centos (currently 6.0 is latest)