where to add printk.time ?

Question

This is a very simple question yet I have little knowledge in Linux and starting to build it .

I am trying to debug the kernel using printk times. I am following this website: http://elinux.org/Printk_Times and in the middle it says to use it: "When booting the kernel, add the option "printk.time=1" (or "time" for older kernels) on the kernel command line "

Where is kernel command line ? am I to add this line in the grub and update the grub ?

Please advise on where should I add this command,

Many thanks,

Answer 1

Yes, it's for menu.lst.

title Desktop -- openSUSE 12.1
    root (hd0,0)
    kernel /vmlinuz-3.3.1 printk.time=1
    initrd /initrd-3.3.1