Re: why the difference between two identical laptops?
On Tuesday 17 October 2006 08:27, Miroslav Maiksnar wrote:
> Dne úterý 17 říjen 2006 16:39 Preston Boyington napsal(a):
> > alright folks, give me some ideas as to why there are differences
> > between these two laptops.
> >
> > i loaded Debian on my first laptop, changed my sources to my favorite
> > ones, installed all the programs and codecs i could think of that i
> > might want.
> >
> > then i did the ol':
> > dpkg --get-selections > packages.txt
> >
> > i then loaded a base Debian install on my second laptop, changed the
> > sources like on my first laptop, and proceeded to run:
> > apt-get update
> > dpkg --set-selections < packages.txt
> > apt-get dselect-upgrade
> >
> > everything loaded just fine, except i notice that there are differences
> > in things like my Gnome icon for battery/charging/plug. it's different
> > than my first laptop. also after an update last night on the second
> > laptop i lost a desktop shortcut to the /share partition that was there
> > initially. (i haven't updated the first laptop to see if the same thing
> > will happen.)
> >
> > the Gnome versions should be the same (2.14.3 i think), so why the minor
> > discrepancies? they are not "show stoppers" by any means, i am just
> > curious.
>
> Problem is, when you use --get/set-selections combo, you loose information
> about exact package versions (needed for stable/testing/unstable mix) and
> you also loose dependency info for aptitude (all packages will behave like
> manually installed). In general, --get/set-selections can make identical
> installs only when using stable release without aptitude.
>
> And of course, if you want identical installations, you also need to
> transfer configurations (/etc, /home/*/.*), as it is initially set to
> default when you install package, but this default can be different between
> two versions of the same package. So on "new" computer you will have "new"
> default config, which will probably be somehow different from "old"
> computer (depends on release and package updates).
>
> I would do identical installs using bootable linux CDs (knoppix) and
> something like `tar c /old_root/ | ssh other_comp 'tar x -C /new_root/'`
>
> Mixi
If I may go a bit off topic for a moment, how would one go about backing up
and restoring the packages installed AND the installed versions of those
packages?
Thanks in advance.
--
Robert Miesen
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