How to install Ubuntu 12.04, booted from external HDD

[Colin Law]

On 30 November 2012 22:40, Dave Woyciesjes <woyciesjes at sbcglobal.net> wrote:
> On 11/30/2012 05:17 PM, Colin Law wrote:
>>
>> On 30 November 2012 22:00, Dave Woyciesjes <woyciesjes at sbcglobal.net>
>> 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.

Colin