[ubuntu-za] upgrade path from 8.10 to 9.04

[Morgan Collett]

On Tue, May 19, 2009 at 16:09, Lee Sharp <leesharp at hal-pc.org> wrote:
> Trevor Hughes wrote:
>
>> Now I want to upgrade the old laptop from 8.10 to 9.04
>
>> Either way checking in Synaptic both meta packages ubuntu-desktop and
>> xubuntu-desktop are marked as installed.
>>
>> I exclusively use the Xubuntu part and even my login screen is the
>> Xubuntu screen (obvioulsy replaced the Ubuntu screen when I installed
>> it)
>
>
> I have not tried this, so It may or may not work, but...  Set one as a
> cd repository, and then upgrade with the other.  It will either disable
> it as a repository since it is upgrading (Ooops) or it will prompt you
> to change CDs.

I also don't know what will work in the end, but my 2c worth is to
copy the deb packages from the CD you're not using for the upgrade, to
/var/cache/apt/archives before you do the upgrade. I think the debs on
the CD follow the repo format, so pool/main/l/linux_whatever.deb -
you'd need to copy the files from all the subdirectories to
/var/cache/apt/archives which is just a flat format.

Alternatively you could set up an apt proxy like apt-proxy or
apt-cacher or apt-cacher-ng (my current favourite) - usually you can
populate the cache from existing debs like a mounted CD. The upgrade
will then download packages from the repos as usual, and the proxy
will serve them from its cache instead of downloading them.

Regards
Morgan