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Re: How to refresh Debian to install software set

Damon L. Chesser <damon@damtek.com>:
>  Dennis G. Wicks wrote:
> >
> > I have four Debian systems and a couple of them seem to have gotten in 
> > the state that they don't have a full set of packages for some reason.
> >
> > Is there any way to do a refresh or reinstall of the system to make 
> > sure everything is there? Short of an install from the beginning that 
> > is!! I can figure that one out with no help. ;-)
>  One way it to get on a "good" system and do:  dpkg --get-selections 
>  >complete_good_package_backup.txt
>  Move that file over to a "bad" system and:  dpkg --set-selections 
> <complete_good_package_backup.txt
>  followed by  apt-get dselect-upgrade

I just tried this on a recent reinstall, and it worked marvelously:

    - dpkg --set-selections < file
    - aptitude update && aptitude install

>  your "bad" system will now install all the packages your "good" system 
>  has listed.  This is also a way to "clone" a load out (that and copy 
>  /etc, /var, and any data).  I do not think it will remove any pacakges 
>  "bad" has that "good" does not unless it conflicts with the upgrade (but 
>  I have not tried it, so am not sure).

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