How to boot into fedora 18

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what do you mean by saying "it just automaticly boots into windows..." ?

=====1=====

if you still have GRUB bootloader on your MBR:

you should change the default OS on your system's GRUB configuraton file which is in this path : /boot/grub2/grub.cfg

in this line :

set default="num"

you can change the num to an integer which shows the menu-entry of Fedora on your Bootloader menu. (the nums begins from zero)

but, as mentioned in "grub.cfg" file:

# DO NOT EDIT THIS FILE

because any incorrect change will cause your system not boot at the next system startup.

so, the better way is to know the Menu-entry of your Fedora at the bootloader and using this command to change the default OS to Fedora :

grub2-set-default MENU_ENTRY

for example if Fedora is the first Menu-entry at your bootloader, the command will be :

grub2-set-default 0

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=====2=====

if you had installed windows bootloader :

• Howto Rescue a Fedora System?

then try this command :

grub2-install /dev/sda

by this command, grub2 will be written on the MBR of your first Hard Drive( not first partition) , it is not neccessary to determine the partition because each Hard drive has one unique MBR.

for example if you had two hard drives and you wanted to insert grub2 at the MBR of your second Hard drive, the command would be : grub2-install /dev/sdb

*it is finished and now you can restart the system to see the changes

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