Often we lose GRUB boot loader whenever we install Windows after
Linux installation. This is a terrible hazard to all who love to use
dual, triple or even quadrapole or even higher boot systems on their
Lappys or Desktop PCs. Here’s the fix 。
Step 1. Boot with your Ubuntu Live CD or DVD
Step 2. Open gnome-terminal or konsole
Step 3.
Step 4.
For hda1,sda1 it’ll be (hd0,0),
For hda2,sda2 it’ll be (hd0,1),
For hdb1,sdb1 it’ll be (hd1,0).
Step 5.
Reboot the machine.
The boot loader should be recovered now 。
Another way to fix is to enter into the single user mode at the time of boot from the selection menu & when you have the root prompt do the following:
Now repeat from Step 4 to Step 8 as before and you’re done。
Step 1. Boot with your Ubuntu Live CD or DVD
Step 2. Open gnome-terminal or konsole
Step 3.
$ sudo grubYou’ll get a” grub>” prompt.
Step 4.
grub>find /boot/grub/stage1You’ll have an output like (hd0,0) , it’ll be the number of your partition.
For hda1,sda1 it’ll be (hd0,0),
For hda2,sda2 it’ll be (hd0,1),
For hdb1,sdb1 it’ll be (hd1,0).
Step 5.
grub>root (hd0,1)Step 6.
grub>setup (hd0)Step 7.
grub>quitStep 8.
Reboot the machine.
The boot loader should be recovered now 。
Another way to fix is to enter into the single user mode at the time of boot from the selection menu & when you have the root prompt do the following:
# grubYou’ll have “grub>” prompt like before.
Now repeat from Step 4 to Step 8 as before and you’re done。