On Mon, 11 Jul 2016 16:45:55 +0300 Kevin Wilson <wkevils@xxxxxxxxx> wrote: > Hi, > Thanks Todd. > The thing is that now CentOS is installed and it is the current > control and it indeed uses an older grub. So what do you suggest ? In the old grub, there used to be a command to switch immediately to the configuration file for another installation. I looked for how I used to do that, but I haven't got any installations with old grub left. It's been years since fedora switched to grub2. I think the command is called configfile. Install the documentation for grub, and install pinfo on your centos. Then do pinfo grub and you should get the info files for grub. Look for the command configfile, and create a stanza pointing to the location of the grub start file of f24, /boot/grub2/grub.cfg in your centos grub config file. When you boot centos, and then select that menu entry, it should then boot f24 using the f24 config file. That's how it used to work when both were grub, I'm not sure what happens if switching from grub to grub2. The other option is to use the chainloader command, but I never had very good luck with that. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://lists.fedoraproject.org/admin/lists/users@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org