I have 3 OSes booting- WIndows, Fedora 20 & fedora 21. But I always try to default to the fedora 21 install, so I don't have to press any keys when it boots. so running mkconfig always picks up the latest version & kernels from all installs.. but I only run it from fedora 21. I'm not sure but I think doing yum update, if you get a new kernel, it runs mkconfig. > You may avoid to do it. > But I have a multiboot system. > I may have to manage which grub.cfg file needs to be read when booting. > grub-install let me do it. > > =========================================================================== > Patrick DUPRÉ | | email: pdupre@xxxxxxx > Laboratoire de Physico-Chimie de l'Atmosphère | | > Université du Littoral-Côte d'Opale | | > Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 > 189A, avenue Maurice Schumann | | 59140 Dunkerque, France > =========================================================================== > > >> Sent: Monday, May 04, 2015 at 1:19 PM >> From: "Paul Cartwright" <pbcartwright@xxxxxxxxx> >> To: users@xxxxxxxxxxxxxxxxxxxxxxx >> Subject: Re: grub2 >> >> mmm, well if it has already been installed , why would you ever have to >> run grub-2-install again?? all you would have to do is modify the >> grub.cfg whenever you add a new kernel.. I guess the only way to test >> would be to add/remove a kernel, then JUST run grub2-mkconfig, reboot & >> see if the changes were updated.. >> or am I missing the point.. >> >>> Hello, >>> >>> In my opinion, it odes not matter. >>> after grub-install /dev/sda >>> grub knows that it has to read the file >>> /boot/grub2/grub.cfg >>> Then you can change it, it will use the chnaged file. >>> There is no copy of the copy in /dev/sdx >>> >>> >>> =========================================================================== >>> Patrick DUPRÉ | | email: pdupre@xxxxxxx >>> Laboratoire de Physico-Chimie de l'Atmosphère | | >>> Université du Littoral-Côte d'Opale | | >>> Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 >>> 189A, avenue Maurice Schumann | | 59140 Dunkerque, France >>> =========================================================================== >>> >>> >>>> Sent: Monday, May 04, 2015 at 11:07 AM >>>> From: "Klaus-Peter Schrage" <kpschrage@xxxxxx> >>>> To: users@xxxxxxxxxxxxxxxxxxxxxxx >>>> Subject: Re: grub2 >>>> >>>> Am 03.05.2015 um 20:42 schrieb Paul Cartwright: >>>>> On 05/03/2015 11:02 AM, Klaus-Peter Schrage wrote: >>>>>> Am 03.05.2015 um 15:59 schrieb Patrick Dupre: >>>>>>> Hello, >>>>>>> >>>>>>> After I run >>>>>>> grub2-mkconfig -o /boot/grub2/grub.cfg >>>>>>> grub2-install /dev/sda >>>>>> First thought: Shouldn't these two commands be interchanged? >>>>> no, you run the mkconfig FIRST, then install it in /dev/sda .. >>>>> >>>>> >>>> I am a bit stumbled: I always thought that it is a good idea to install >>>> a feature before configuring it ... Following Fedora's Grub2 >>>> documentation, I did it this way for quite a long time whenever I needed >>>> to update my grub configuration: >>>> "The configuration format has evolved over time, and a new configuration >>>> file might be slightly incompatible with the old bootloader. It is thus >>>> often/always a good idea to run grub2-install before grub2-mkconfig for >>>> some reason is run." >>>> But, I admit, in most situations the order of the two command may not >>>> matter. >>>> -- >>>> users mailing list >>>> users@xxxxxxxxxxxxxxxxxxxxxxx >>>> To unsubscribe or change subscription options: >>>> https://admin.fedoraproject.org/mailman/listinfo/users >>>> 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 >>>> >> >> -- >> Paul Cartwright >> Registered Linux User #367800 and new counter #561587 >> >> -- >> users mailing list >> users@xxxxxxxxxxxxxxxxxxxxxxx >> To unsubscribe or change subscription options: >> https://admin.fedoraproject.org/mailman/listinfo/users >> 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 >> > -- Paul Cartwright Registered Linux User #367800 and new counter #561587 -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users 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
