I usually create a local mirror once a new version of ubuntu is out.
that is around 20 GB for main, restricted, multiverse and universe
repositories. I use the local mirror to update multiple computers, so
I do not need to download multiple times. I also found out that most
of what is in these repositories is sufficient for my purposes at
school, so I have fast installs/uninstalls, if I need additional
Quoting Gavin McCullagh <email@example.com>:
> On Mon, 26 May 2008, Dean Mumby wrote:
>> I am currently running ubuntu ltsp 7.04 I was wondering what the best
>> approach might be to get to ubuntu 8.04
>> 1. Should I upgrade to 7.10 using the upgrade manager and then upgrade
>> to 8.04 using the same or
>> 2. Should I somehow upgrade to 8.04 using the alternate cd etc or
> My understanding is that  is the option you must use. I guess for what
> it's worth an option  would be to install from scratch, but obviously
> most people won't want to do that.
>> Any suggestions , this is a production machine in use everyday , I want
>> to try avoid any downtime.
> I think you'll need to schedule some downtime (or at least "unreliable"
> time) as the upgrade will require reboots and some system services and
> applications (eg firefox) may stop working or not work well during the
> upgrade working. Have you any school holidays coming up?
> Each upgrade should probably take the download time (dependent on your
> number of installed packages and speed of net connection) and the install
> time itself. For me that's usually 2-3 hours.
> It's possible that you can "pre-download" most of the packages. One
> possible way would be to temporarily change edgy to gutsy in
> /etc/apt/sources.list, then do:
> sudo apt-get --download-only dist-upgrade
> then undo the changes to /etc/apt/sources.list and perform the upgrade
> using the supported route.
> If you have sufficient disk space on /var you could also pre-download the
> hardy packages in the same way. This might help reduce your upgrade
> window. Be sure to restore /etc/apt/sources.list before the real upgrade
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