How to install Ubuntu 12.04, booted from external HDD

Colin Law clanlaw at
Fri Nov 30 22:51:33 UTC 2012

On 30 November 2012 22:40, Dave Woyciesjes <woyciesjes at> wrote:
> On 11/30/2012 05:17 PM, Colin Law wrote:
>> On 30 November 2012 22:00, Dave Woyciesjes <woyciesjes at>
>> wrote:
>>> On 11/30/2012 04:43 PM, Dave Woyciesjes wrote:
>>>>       I've got Ubuntu 12.04 installed on an external HDD. I have iso
>>>> images of the installer disc on there as well.
>>>>       What I'm trying ( and not finding) is how to get it setup so I can
>>>> boot a computer from the external HDD, then run the installer so I can
>>>> install Ubuntu onto the internall HDD of the computer....
>> Can't you just put the installer image on a usb stick?  Much easier.
>> Colin
>         I would, If I had one larger than 1GB. :) And I'd rather learn
> something too... Plus, another benefit of using this 60GB drive, is the
> space for backing up before reinstalling.

Is it a usb external drive?  If so you may be able to put the image on
in the same way as one does to create a bootable usb stick.  I don't
know though.  I would then make a separate partition for your backups
rather than extending the one on the installation disc I think.

4GB sticks don't cost much by the way, and are better for installing
from than DVD as they are much faster.  A real disc will be even
quicker of course.


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