Quick Guide: Unable to boot Linux after installation.

If you had problem to boot linux (any flavor that uses grub as the boot loader), and all you get is a blank screen after all of those BIOS messages.. it might be something is wrong with your grub installation.

Below is a guide on how to resetup grup.

1. Boot to linux rescue

2. chroot /mnt/sysimages

3. cd /boot/grub

4. check that all grup.conf setting is correct

5. check that devices.map is correct (use grub-install --recheck device-name , to rebuild the file)

6. run command below:

shell# grub
grub> root (hd0,0)
grub> setup (hd0)
if you have more than 1 disk and it is mirrored, proceed with the following

grub> root (hd1,0)
grub> setup (hd1)
grub> quit (to exit from grub shell)

7. remove the cdrom from the machine and reboot.

8. now you should be able to boot the machine.