On Tuesday 03 December 2013 22:51:11 Brad Alexander wrote: > On Tue, Dec 3, 2013 at 5:39 PM, Neal Murphy <neal.p.mur...@alum.wpi.edu>wrote: > > On Tuesday, December 03, 2013 05:26:37 PM Lisi Reisz wrote: > > > I have had another failed upgrade. Before I tried to upgrade, > > > I ran dpkg --get-selections and saved the result in a file. > > > > > > I am obviously going to have to install Wheezy from scratch. > > > Is there any way I can make use of Squeeze's package list to > > > give the owner of the box the same applications/packages as she > > > had in Squeeze, mutatis mutandis? > > > > This topic was recently discussed, I think within the last 2-3 > > weeks. ... Ah, > > 11/4: "Re: Installing same packages in a Squeeze installation in > > a new Wheezy > > installation". Excerpt from a thread summary I posted: > > > > ---- > > The theory is that --get-selections will list all installed pkgs > > in a form that can be used by --set-selections to (re)install > > them. > > > > So, on the existing system: > > # Mount a thumb drive; change 'sdg' as needed > > mount /dev/sdg1 /mnt > > > > # Save the list of pkgs > > dpkg --get-selections > /mnt/current_installed_pkgs.txt > > > > # Umount, then unplug the drive > > umount /mnt > > > > And on the new system, first netinstall a basic system. Then > > # Mount the thumb drive; change 'sdd' as needed > > mount /dev/sdd1 /mnt > > > > # Set the list of pkgs to install > > dpkg --set-selections < /mnt/current_installed_pkgs.txt > > > > # Unmount and remove the thumb drive > > umount /mnt > > > > # Start the 'upgrade' > > apt-get dselect-upgrade > > When done, the new system should have the same pkgs as the old > > system. It won't be identical, but it'll be close. > > Neal beat me to the punch, Lisi. > > One point I would like to make is that it is probably not a bad > idea to capture this from all of your machines as a starting point > to have a pool of machine "types." For instance, being a believer > in bastion hosts, I have a separate firewall, backup machine, > fileserver, workstations, laptop, and containers (OpenVZ) for, for > instance, mediawiki box, puppet master, etc. Each machine runs a > script (installed by puppet) that runs at 4am that does an dpkg > --get-selections and writes it to the filesytem. This is backed up > daily. This way, if I am building a new box of a type, I have a > base config from which to work.
Thanks to both of you. I am most grateful. And that is a most useful additional suggestion, Brad. :-) Lisi -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201312032320.57578.lisi.re...@gmail.com
