Re: Grub.conf?

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On 5/29/07, Norm <maillist@xxxxxxx> wrote:
Decided to set up a FC6/Ubuntu dual boot. box.  The Ubuntu part did not
load properly can't get into it enough to edit the sudo or add remove
any users, no problem just ignore it.  The catch is the Ubuntu parts are
the default boot. when I go to the fedora grub.conf or menu.lst files
there is no mention Ubuntu so editing the file will not do any good.
What file needs to be edited to boot from the FC 6 grub.conf file.  As I
plan to do a fresh install of Fedora 7 in a few days it probably does
not matter in the long run but I would like to know which file should be
edired to get back to the original FC6 boot configuration.

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Hi Norm!

I wish I had more time to make this easy, but alas.

Basic procedure I would follow:

0. Make a copy of your Master Boot Record and associated sector (one
with MBR only, one with MBR and its assocated secotor). For info
google "dd" and "linux master boot record".  The main purpose of the
MBR is to act as a loader for grub stage 1.
1. Understand where the grub you want to load is:
http://www.gnu.org/software/grub/manual/grub.html#Naming-convention
2. Info google "grub" and check out the "grub-install" command.  You
may need to use the grub shell to actually make the cange you
want/need.
3. Apply "grub-install" or appropriate commands to update the MBR to
point to the grub you wish to load.
4. Boot and hopefully be happy.  If not, at least you have a way to
re-establish your MBR.

Good Hunting!

Tod


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