[CentOS] RHEL/CentOS 7 Dual boot with CentOS 5.x/6.x - default boot quick solution/howto

[Nux!]

On 22.03.2014 17:46, Ljubomir Ljubojevic wrote:
> I have RHEL 7 Beta installed in dual boot with CentOS 6.x. Since RHEL 
> 7
> installed GRUB2, I had problem that RHEL 7 is default boot.
> 
> 
> My personal solution was to go to /etc/grub.d and run command:
> mv 10_linux 31_linux
> 
> grub2-mkconfig -o /boot/grub2/grub.cfg
> 
> Explanation:
> 
> 
> - /etc/grub.d is where grub2 writes down config files used to create
> boot menu.
> - OS-prober creates 30_os-prober file in /etc/grub.d
> - 10_linux is created for RHEL/CentOS 7.x system installed.
> 
> If you change order of files in /etc/grub.d (numbers at the start of 
> the
> files) the list generated with grub2-mkconfig will change order in the
> GRUB2 menu :)

Oh boy, I'm so going to miss Grub 0.97..
Thanks for sharing, though!

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