Change boot order F16

boarder428 · #1 23rd May 2012, 05:38 PM

Hello, been a while since I used Fedora, having trouble changing the boot order between windows and Fedora. from root gedit/boot/grub2/grub.cfg is not working for me as well as manually thru gedit. I don't seem to have the right priveleges. Can someone point me in the right direction to get the grub menu edited in Fedora?

nonamedotc · #2 23rd May 2012, 06:50 PM

Here is an excellent guide for GRUB 2. In this you can find how to change the boot order. Hope this helps.

boarder428 · #3 23rd May 2012, 07:20 PM

Quote:

Originally Posted by nonamedotc

Here is an excellent guide for GRUB 2. In this you can find how to change the boot order. Hope this helps.

That's a great tutorial if using ubuntu but thats not the problem i'm having. I can't seem to open anything in Fedora, I'm guessing it has something to do with permissions. Fedora used to have a way to change boot order without editing the grub menu, is this still an option?

Here's an example of the problem i'm having

Code:

[root@Acer5515 corey]# gedit /etc/default/grub

(gedit:2614): EggSMClient-WARNING **: Failed to connect to the session manager: None of the authentication protocols specified are supported


** (gedit:2614): WARNING **: Could not connect to session bus
[root@Acer5515 corey]#

dsmithhfx · #4 23rd May 2012, 07:25 PM

You might be able to bypass the permissions problem by booting from a livecd.

nonamedotc · #5 23rd May 2012, 08:44 PM

Well, why don't you look at this thread? This deals with getting graphical user programs to show up when opening as root. It does not seem to be a permissions issue to me.

That might answer some of your concerns.

boarder428 · #6 23rd May 2012, 08:46 PM

Quote:

Originally Posted by dsmithhfx

You might be able to bypass the permissions problem by booting from a livecd.

Thanks, I'll try that if all else fails. I've been using ubuntu for so long and I've never had a problem changing the boot order so I know it's something stupid. I just don't care much for the look of Unity and I really like the new look of Fedora so I want to give it a run!

george_toolan · #7 24th May 2012, 09:08 AM

Try

Code:

vi /etc/default/grub

boarder428 · #8 24th May 2012, 08:34 PM

Quote:

Originally Posted by george_toolan

Try

Code:

vi /etc/default/grub

Ok, vi got the file editied but I cannot get the update grub command to work and it still boots into the first grub entry. This should'nt be this hard, I have never had any problems changing this in ubuntu, nor have I ever had to use vi to edit grub entries. What the heck is the deal here?

Code:

[root@Acer5515 corey]# vi /etc/default/grub
[root@Acer5515 corey]# update-grub
bash: update-grub: command not found...
[root@Acer5515 corey]# su update-grub
su: user update-grub does not exist
[root@Acer5515 corey]# sudo update-grub
sudo: update-grub: command not found
[root@Acer5515 corey]# su - update-grub
su: user update-grub does not exist
[root@Acer5515 corey]# update-grub2
bash: update-grub2: command not found...
[root@Acer5515 corey]#

sea · #9 25th May 2012, 01:40 AM

The dbus problem, probably no xorg-x11-xinit-session?
Or even simpler, even as root, call it with: sudo gedit /etc/default/grub, might solve the issue.

Run as root:

Code:

grub2-mkconfig -o /boot/grub2/grub.cfg

***glennzo*** · #10 25th May 2012, 01:44 AM

update-grub? That is Ubuntu.

This is Fedora ...

PHP Code:


			
sudo grub2-mkconfig -o /boot/grub2/grub.cfg

or

PHP Code:


			
su -c 'grub2-mkconfig -o /boot/grub2/grub.cfg'

or

PHP Code:


			
su
<password>
grub2-mkconfig -o /boot/grub2/grub.cfg

boarder428 · #11 25th May 2012, 05:28 AM

Thanks Sea and Glennzo, those answers were exactly what I was looking for!

AceRoom · #12 25th May 2012, 02:46 PM

Though the earlier method was to edit the grub file, if you go through this page, there is a much nicer way of doing it.
http://fedoraproject.org/wiki/GRUB_2..._default_entry

So as root:

Code:

grub2-mkconfig -o /boot/grub2/grub.cfg
grep menuentry /boot/grub2/grub.cfg

This output gives me:

Code:

menuentry 'Fedora Linux, with Linux 3.3.2-1.fc16.i686' --class fedora --class gnu-linux --class gnu --class os {
menuentry 'Fedora Linux, with Linux 3.3.2-1.fc16.i686 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os {
menuentry "Windows Recovery Environment (loader) (on /dev/sda1)" --class windows --class os {
menuentry "Ubuntu, with Linux 3.2.0-23-generic (on /dev/sda9)" --class gnu-linux --class gnu --class os {
menuentry "Ubuntu, with Linux 3.2.0-23-generic (recovery mode) (on /dev/sda9)" --class gnu-linux --class gnu --class os {

Copy the desired title including the quotes. For this example, let's take the Windows entry. In my case it's:
"Windows Recovery Environment (loader) (on /dev/sda1)"

Then execute:

Code:

grub2-set-default "Windows Recovery Environment (loader) (on /dev/sda1)"

This method avoids a lot of hassle (of counting the entries

).

boarder428 · #13 25th May 2012, 03:07 PM

Quote:

Originally Posted by AceRoom

Though the earlier method was to edit the grub file, if you go through this page, there is a much nicer way of doing it.
http://fedoraproject.org/wiki/GRUB_2..._default_entry

So as root:

Code:

grub2-mkconfig -o /boot/grub2/grub.cfg
grep menuentry /boot/grub2/grub.cfg

This output gives me:

Code:

menuentry 'Fedora Linux, with Linux 3.3.2-1.fc16.i686' --class fedora --class gnu-linux --class gnu --class os {
menuentry 'Fedora Linux, with Linux 3.3.2-1.fc16.i686 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os {
menuentry "Windows Recovery Environment (loader) (on /dev/sda1)" --class windows --class os {
menuentry "Ubuntu, with Linux 3.2.0-23-generic (on /dev/sda9)" --class gnu-linux --class gnu --class os {
menuentry "Ubuntu, with Linux 3.2.0-23-generic (recovery mode) (on /dev/sda9)" --class gnu-linux --class gnu --class os {

Copy the desired title including the quotes. For this example, let's take the Windows entry. In my case it's:
"Windows Recovery Environment (loader) (on /dev/sda1)"

Then execute:

Code:

grub2-set-default "Windows Recovery Environment (loader) (on /dev/sda1)"

This method avoids a lot of hassle (of counting the entries

).

Very usefull, thanks alot!

sea · #14 25th May 2012, 05:38 PM

Just comes in mind, to change your default menu entry to boot, have a look at this:

/etc/default/grub
GRUB_DEFAULT=N

Where N is any number from 0 (the first entry) to NN (the maximum menu entries, fallback counts as well).

boarder428 · #15 25th May 2012, 06:03 PM

Quote:

Originally Posted by sea

Just comes in mind, to change your default menu entry to boot, have a look at this:

/etc/default/grub
GRUB_DEFAULT=N

Where N is any number from 0 (the first entry) to NN (the maximum menu entries, fallback counts as well).

Yes, that's what I was doing after I figured out how to edit the file in Fedora, I just did'nt know the correct command to get the grub.cfg file to update in Fedora. I'm used to Ubuntu!