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How to restore grub entries in new Fedora 25 installation

asked 2017-05-19 20:36:47 -0600

expat42451 gravatar image

First hello to everyone here. Thanks for those of you knowledgeable sharing your expertise with new Fedora users.

System is a desktop-- Asus tuf Z270 16GB Ram, NVidia 730 graphics, 3 Benq monitors. Storage is 1 1TB and 1 2 TB spinning drives. Before the Fedora install, Open Suse and Windoze 10 coexisted happily, Windoze on the 1 TB drive and OpenSuse on the 2 TB. I used GPartd to shrink the Open Suse partition to basically half of the 2 TB drive, and then the install program in Fedora 25 to format the 1 TB I opened up by shrinking the Suse partition. Install went beautifully, simple and quick. However on booting , GRUB sees Suse but not Windoze in the menu and when asked to boot Suse, says it cant find it. Looking at Gnome Disks, Suse is there along with the Windoze drive, the disks are bootable. So how do I make GRUB see Windoze (I need it for work unfortunately).....I am not that concerned about SUSE at this point.....

One note. In BIOS settings I have the system set up where it should boot either Legacy or UEFI with UEFI priority.

Any recommendations would be appreciated. I did a search here and the thread on dual booting was for Windoze 7 and an earlier version of Fedora. I tried the CLI commands for GRUB and the output was "no such file" so I am only guessing that the thread was for the GRUB 1 days.

Regards and thanks very much.


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Need more information. Please post output from the following.

efibootmgr -v
sudo os-prober
sudo blkid
cmurf gravatar imagecmurf ( 2017-05-31 10:49:47 -0600 )edit

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answered 2017-05-19 23:17:05 -0600

expat42451 gravatar image

updated 2017-05-31 08:58:26 -0600

florian gravatar image

First I would like to apologise to a really excellent forum for posting a question without thinking it through. I also with moderator's permission will post my solution to help others experiencing the same problem.

Follow the guidelines outlined here

for those of us that have been around for a while and remember the old days of Grub....Grub 2 is much easier to use with a host of automated commands like os-prober-things are also outlined here

and particularly this command--

grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

I hope this helps some other users who experience similar problems. Also again my apologies to the forum for posting without thinking. I have more experience with Grub than with Grub 2.

Regards and again many thanks to all here


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Don't feel bad about answering your own question. It's a fine, old tradition here, and well appreciated because it helps others who find themselves in your position. Thanx for letting us know what worked, and be sure to come back if you need more help, or want to answer other people's questions.

sideburns gravatar imagesideburns ( 2017-05-31 16:06:49 -0600 )edit

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Asked: 2017-05-19 20:36:47 -0600

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Last updated: May 31 '17