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Old 10-10-2012, 01:41 AM   #1
miros84
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Restore linux mint grub after installing Fedora 17


I have Linux Mint installad on my PC. Grub was installad on /dev/sda
After installing Fedora 17, Fedora´s grub now is intalled on /dev/sda.
But I prefer so much Linux Grub then Fedora grub.
I ran Linux Mint by SGD2 and tried
Code:
grub-install --root-directory /dev/sda
but it doesnot work.
Any idea how to restore Linux Mint grub on sda?
 
Old 10-10-2012, 04:23 AM   #2
syg00
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If you are chroot'd into your Mint install, simply run
Code:
grub-install /dev/sda
update-grub
 
Old 10-10-2012, 08:20 AM   #3
miros84
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That works perfectly. Now Linux Mint grub is active, but after "update-grub" it doesnot detect Fedora 17...
Do I have to add it manualy? Or meybe I need other command? I can run Fedora by SGD2, so Fedora is OK. Just doesnot appear in Linux Mint grub. Any idea on how to fix that?
Fedora is on /dev/sda6 on a logical partition.
 
Old 10-11-2012, 03:37 AM   #4
syg00
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Dunno - I don't allow Ubuntu (derivatives) to control my machines. Update-grub should find the kernel(s) in F17 okay I would have thought.
What filesystem are you using on F17 ?.
 
Old 10-11-2012, 04:59 AM   #5
m.a.l.'s pa
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Maybe try running update-grub again. I had a similar problem with Debian Wheezy's grub2 not detecting Fedora 17 after running update-grub, but for some reason, when I ran it again Fedora 17 was detected fine, and no problems since.
 
Old 10-11-2012, 12:21 PM   #6
miros84
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I found the problem. First, I need to mount the partition where Fedora is isntalled,then grub-update finds Fedora correctly.
 
Old 10-11-2012, 07:48 PM   #7
m.a.l.'s pa
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Quote:
Originally Posted by miros84 View Post
I found the problem. First, I need to mount the partition where Fedora is isntalled,then grub-update finds Fedora correctly.
Wow. That explains what happened here, too. Looking back at my notes, Fedora 17 wasn't found at first, but after I set up mount points for its partitions in Wheezy, and edited fstab, update-grub found it just fine. I had no idea why it was found the second time I ran update-grub, but not the first! Thanks!
 
Old 10-13-2012, 04:11 PM   #8
Lsatenstein
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The way I did grub changes was much much easier.

Grub is already installed in Mint.
cd /boot/grub
then do grub-mkconfig >/tmp/grub.cfg # creates the grub that mint generates.
put this grub in an email to your self.
reboot to Fedora.
as a user download the grub.cfg and put it in /tmp within Fedora
as root
cd /boot/grub2
cp grub.cfg grub.bak
Now cp /tmp/grub.cfg .

reboot and it will be Mint's grub.

There is really nothing wrong with Fedora's grub. It is only there to start your choice of Linux
You can modify the grub.cfg to change default from '0' to 'x' where x is the menuentry number (counting from zero).
 
  


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