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I have installed two linux distributions which are kali linux and backtrack 5 and before install backtrack 5 grub2 was the main bootloader but now the main grub is the legacy of backtrack. How can I set grub2 as the main bootloader again?
EDIT:the grub2 is not overwritten but only is not the main bootloader. I tried boot-repair disk but it didn't work.
Maximo Panigada
Posted 2016-08-15T15:13:10.127
Reputation: 13
0
You may use @Rio6 answer to make it default and reinstall grub, but if you're on a EFI system, you can use
# efibootmgr
to list all of the bootloaders installed to the efi boot partition with numbers identifing them, then
# efibootmgr -o <insert-number-of-grub2-here>
to modify your efi boot order, setting grub2 first.
Admin3X
Posted 2016-08-15T15:13:10.127
Reputation: 151
1
You just need to reinstall grub2
Execute:
# grub-install /dev/sda
# grub-mkconfig -o /boot/grub/grub.cfg
change /dev/sda to the disk you want to install grub on
Rio6
Posted 2016-08-15T15:13:10.127
Reputation: 121
It's not replaced it still exist I don't need to reinstall but I need to make it the main bootloader – Maximo Panigada – 2016-08-17T11:10:20.840