How do you check what kernel version you currently have on your server? What is the lastest kernel version? Will it be any downtime for kernel upgrade?
Thanks

uname -r will show you the current kernel version ... The latest Kernel Versio in 2.4.20
To get the new kernel live you'll have to reboot.

greets,

I found the answer for the first question:
rpm -q kernel kernel-headers kernel-ibcs kernel-pcmcia-cs kernel-source

I got version: 2.4.18-3, this is not the lastest one, isn't it?

However, I found that, my
kernel-headers Not installed
kernel-ibcs Not installed
kernel-pcmcia-cs Not installed
kernel-source Not installed

Wonder if you need to install all that?

Thanks