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RHEL4 U5 Install, Boots Up with “GRUB” error on screen. 29 October 2008

Posted by Maulvi Bakar in : Linux,Work , trackback

This one is a funny error. After finishing the installation, the system reboots and ‘poof’ on screen only displays “GRUB”.

My suspicion is that, GRUB somehow or rather did not install properly onto MBR. Considering previously that the system comes only with a single harddisk. Later on, after fixing a second harddisk, the OS was re-installed with RAID1. Maybe that’s the cause as the old GRUB was not properly overwritten.

Basically, I re-insert the installation CD and boot up into rescue mode.
linux rescue

Upon boot up, mount the filesystem thus –
# chroot /mnt/sysimage

Use grub the regenerate the grub stuff on both hdds thus –
# grub

On the grub command line, select the 1st harddisk
grub> root (hd0,0)

Initialize grub onto the 1st harddisk
grub> setup (hd0)

Do the same for the 2nd harddisk
grub> root (hd1,0)
grub> setup (hd1)

Exit the grub menu –
grub> exit

Reboot the system and your grub should behave normally now..



1. Luqman - 7 December 2009


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