Boot CentOS and then, as root, edit the file /boot/grub/grub.conf and change the timeout= line from its rather small 5 second default to something larger. [by TrevorH]
on 07/28/2012 – Made popular on 07/28/2012
I am currently using SolusOS and it is really a great distro in my opinion. However, the default grub timeout of SolusOS is too short for my need, only 5 seconds. And since I have 3 other Linux distros and Windows 7 installed on my laptop, I need a longer grub timeout for me to select the operating system I want to use.
I edited the 'grub.conf' file of my linux system and changed the 'timeout' value in it and added some other line so as to solve the timeout issue of 'xm console guest' command. I was fool to assume that this 'timeout' parameter in grub.conf is actually related to 'xm console timeout and change it to very large value. So it led me to a big problem.