update Grub on CentOS 6

cccc · Post by **cccc** » 2011/11/30 00:53:04

hi

Howto update Grub on CentOS 6?

I've tried update-grub[code] # sudo update-grub
sudo: update-grub: command not found
# grub --version
grub (GNU GRUB 0.97)[/code]but it doesn't work.

markkuk · Post by **markkuk** » 2011/11/30 10:57:27

What do you mean by "updating GRUB"? Update-grub is an Ubuntu command to re-generate the GRUB 2 configuration file. CentOS uses GRUB 1 a.k.a. "legacy GRUB", so there's no need for update-grub, grub-mkconfig or any other similar commands. You can edit the configuration file /boot/grub/grub.conf with any text editor.

cccc · Post by **cccc** » 2011/11/30 16:08:34

I need to re-generate the GRUB configuration file to find out automatically boot entries from other linux OS, installed on the same machine.
Anyway, if this doesn't work, I will edit the configuration file /boot/grub/grub.conf with a text editor.

pschaff · Post by **pschaff** » 2011/12/01 00:03:14

There is no automatic discovery and GRUB update mechanism in CentOS/RHEL.

cccc · Post by **cccc** » 2011/12/01 09:04:38

CentOS