If you need to access the web-server on the server itself, and you don't have graphics installed, you can use links (there must be a package for it on ubuntu). Links is a text-based web-browser, handy for headless servers.
Don't have experience with aegir, and also don't quite understand your problem with the little information you provided, but maybe, this helps.

Ursula

On Thu, Jul 14, 2011 at 4:19 AM, Fahri Reza <dozymoe@gmail.com> wrote:
On Thu, 2011-07-14 at 09:07 +1000, Roger wrote:
> Hi all
> I have a hd with ubuntu 11.04 server installed.
> I followed the instructions to install Aegir on the server but it gives
> errors at the end of the install.
> Google tells of others experiencing the same errors but gives no resolution.
>
> I installed firefox on the server but think it won't work unless there
> is a windows manager of some sort.
> What is the smallest windows manager required to run firefox on a server
> and what else should be  installed.
>
> Can someone please point me to an Aegir tutorial or script that actually
> does install properly
>
> I would like to be able to access the ubuntu server hard drive from my
> ubuntu 11 desktop hard drive but have no idea how to do so.
> How can I work on the server hard drive from my desktop without having
> to boot into the server hd
>
> Help would be much appreciated, thank you
> Roger

You need X11 system on the server side and sshd capable of forwarding
X11, then you login from the client with $ssh -Y to enable GUI.

You don't need full blown X11 system, there is fake X11 for this tasks,
for example xvfb or kdrive(??).

I don't think you need window-manager for this.

And I have doubt whether you need a browser on the server-side in the
first place.

fireh.

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