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Panos_Papajohn
July 27th, 2010, 12:55 PM
Hello

I'm new to the Ubuntu family (just installed Lucid Lynx) and I'm having a problem with the installation. I've burned the ISO file to a DVD and follow the instructions for the installation. When I had to create a partition for the Linux I created one to my external HD. Now every time I restart my PC it can't boot neither Windows nor Ubuntu and I'm staring at a black screen. When I put the DVD the PC boots and I can use Ubuntu. But on the desktop there is a file Install Ubuntu 10.04. If I open the file I following the same procedure as in the first install. I thought that the bootloader had a problem so I used the terminal app to inform the bootloader about the two OS (Windows and Ubuntu) but when I used the sudo grub command I get the message : sudo: grub: command not found
. As I said I'm new to Ubuntu so I don't have a clue what to do so if anyone can help me I would appreciate it.;)

VH-BIL
July 27th, 2010, 01:04 PM
find out what hard drive your system is booting then I think the solution is to run the command
grub-install <device to install the master boot record>

oldfred
July 28th, 2010, 05:43 AM
With external drives you want to use the advanced button on the last partition screen to install grub to the external. Then set BIOS to boot external. If external is not there, then windows will still boot.

You need to make sure you have windows boot loader in sda and grub2 installed in sdb (or whatever drive the external is).

How to restore the Ubuntu/XP/Vista/7 bootloader (Updated for Ubuntu 9.10)
http://ubuntuforums.org/showthread.php?t=1014708

If you want specific instructions, plug in the external and from liveCD run this script which documents how your system is set up:

Boot Info Script courtesy of forum member meierfra
Page with instructions and download:
http://bootinfoscript.sourceforge.net/
Paste results.txt, then highlight entire file and click on # in edit panel(code tags) to make it easier to read.
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