On 01/05/11 11:36, Charles Plessy wrote:
Le Fri, Apr 29, 2011 at 11:49:57AM +0100, Tony Travis a écrit :
I wanted to make sure that 'biobuntu' was as close to Bio-Linux as
possible, but based on Ubuntu instead of Debian. I wrote a script
"dpkg-dsel" to compare the 'dselect' selections of two machines or to
compare the current selections of one machine with a reference list of
package selections obtained from the installation media.
Dear Tony,
comparing the output of “dpkg --get-selections” will not only reflect the
difference of what the “bio” pakcages need, but also the differences between
Debian and Ubuntu in general, plus the differences in the way they were
installed.
Hi, Charles.
It was only during the initial stages that I compared Debian (Sarge) and
Ubuntu (Dapper). Bio-Linux is based on Ubuntu 10.04 LTS, so I'm now
actually comparing an Ubuntu derivative (Bio-Linux) with Ubuntu.
I feel that it would be simpler to rely on APT than on dpkg, by having a list
of packages that are required for your system to be a “biobuntu”, and letting
APT pull everything else that is necessary. That will also help you to upgrade
from one Ubuntu release to the others.
I just use "dpkg" to set the selections, I then install them using:
aptitude -f install
The list of packages can be a meta-package. You could either write one from
scratch, or modify the Debian Med blends packages. It would not be too
difficult to unbrand or rebrand them.
Yes, I've thought of creating a meta-package - One thing that has
stopped from doing that me so far is not knowing how to create a package
dependency tree and how to prune off all the lower level dependencies
that could be installed automatically. A meta-package containing an
exhaustive list of all the required packages would not be an elegant
solution, would it?
However, an additional use of my "dpkg-dsel" script is to compare the
package 'selections' installed on different machines. I do this to track
the differences between various installations of Bio-Linux and Ubuntu as
well as comparing against a reference list of packages based on the
manifest of the 'squashfs' filesystem on the installation media.
Thanks for your helpful comments,
Tony.
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