How to reduce a debian system to a base system
in [Debian]
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From: Ron Johnson on 19 Mar 2010 17:50 On 2010-03-19 15:21, Mike Viau wrote: [snip] > > I was hoping to find a solution for a currently running Debian system > rather then to create a bare bone baseline or image... > I did that once, for a little Debian-based router. Got it down to 250MB, even including Python and ssh. But that was many moons ago. You'll just have to do your "dpkg -l" and start purging what you think are unnecessary packages. There will be obvious packages, semi-obvious packages, and why-the-heck-do-they-require-this? packages. "Do you want to continue? [y/N]" is *definitely* your friend. -- Obsession with "preserving cultural heritage" is a racist impediment to moral, physical and intellectual progress. -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4BA3EF63.5010604(a)cox.net
From: Mike Bird on 19 Mar 2010 17:50 On Fri March 19 2010 12:55:47 Mike Viau wrote: > I was looking for a way to purge or remove all the packages that were > installed on a Debian system after the initial (bare bone) minimal system > installation. I have searched on Google for "How to reduce a Debian system > to a base system" but it seems like the topic of interest was to reduce the > memory consumption of the installed system, which is not my consern. > > In essence I would like to revert my system back to a freshly installed > state, without reinstalling. Ultimatly is this possible? Assuming your bare bones --get-selections file is called bbs: dpkg --dry-run --purge $(join -v2 <(awk '{if ($2=="install") print $1}' <bbs | sort) <(dpkg --get-selections | awk '{if ($2=="install") print $1}' | sort)) Remove "--dry-run" at your own peril once you're happy with the proposed actions. You may need to run it a couple or three times but that should do it. --Mike Bird -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/201003191448.03134.mgb-debian(a)yosemite.net
From: Greg Madden on 19 Mar 2010 18:50 On Friday 19 March 2010 01:09:20 pm Mike Viau wrote: > > Date: Fri, 19 Mar 2010 21:31:40 +0100 > > From: iodine(a)runbox.no > > To: debian-user(a)lists.debian.org > > Subject: Re: How to reduce a debian system to a base system > > > > Mike Viau wrote: > > > In essence I would like to revert my system back to a freshly > > > installed state, without reinstalling. Ultimatly is this possible? > > > > -snip- > > > > > I was hoping to find a solution for a currently running Debian system > > > rather then to create a bare bone baseline or image... > > > > Wouldn't the easiest way be to backup all important data and > > reinstall? That _should_ give the same end result. But if that > > isn't a viable option for you, please explain why. Is this perhaps > > a remote server that you can't get your hands on, I can see how > > that would be a problem. > > > > -- > > Odd > > I do have physical access to the box, but it does not have an optical drive > to make re-installation painless. I temporarily borrowed a USB drive that > is not with me anymore. The hardware is very recent and last time I tried > to used the net install disk the e1000e driver I was unable to detect my > network card and the Debian setup insisted that I was to use Ethernet over > Firewire. Would be nice to have a 'snapshot' feature to revert to. I have used aptitude (dselect) to get close to a standard install, base + standard is not that many packages, no X. It is a bit tedious, but it can be done, Search for and purge xorg, gnome stuff. Aptitude remembers packages that have been installed as recommends and will prompt you to offer to remove them. 'deborphan' can help find & remove orphaned libraries. -- Peace Greg Madden -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/201003191448.54996.gomadtroll(a)acsalaska.net
From: Rogerio Luz Coelho on 19 Mar 2010 19:40 Ok the bigger problem you should have is "what is a base system" You could run in another box a installation and get a list of the basic system packages, but what do you want the box for? give us a user case and we would try to sort this mess out for you. Definitely purging X is a must -- that will take down about 90% of the "flavour" packages and none of the essential stuff, could you not start there ? Do you need SQL ? Mail ? Apache ... etc ... A use case would be great ... or is this a experiment? Rogerio 2010/3/19 Greg Madden <gomadtroll(a)acsalaska.net> > On Friday 19 March 2010 01:09:20 pm Mike Viau wrote: > > > Date: Fri, 19 Mar 2010 21:31:40 +0100 > > > From: iodine(a)runbox.no > > > To: debian-user(a)lists.debian.org > > > Subject: Re: How to reduce a debian system to a base system > > > > > > Mike Viau wrote: > > > > In essence I would like to revert my system back to a freshly > > > > installed state, without reinstalling. Ultimatly is this possible? > > > > > > -snip- > > > > > > > I was hoping to find a solution for a currently running Debian system > > > > rather then to create a bare bone baseline or image... > > > > > > Wouldn't the easiest way be to backup all important data and > > > reinstall? That _should_ give the same end result. But if that > > > isn't a viable option for you, please explain why. Is this perhaps > > > a remote server that you can't get your hands on, I can see how > > > that would be a problem. > > > > > > -- > > > Odd > > > > I do have physical access to the box, but it does not have an optical > drive > > to make re-installation painless. I temporarily borrowed a USB drive that > > is not with me anymore. The hardware is very recent and last time I tried > > to used the net install disk the e1000e driver I was unable to detect my > > network card and the Debian setup insisted that I was to use Ethernet > over > > Firewire. > > Would be nice to have a 'snapshot' feature to revert to. I have used > aptitude > (dselect) to get close to a standard install, base + standard is not that > many > packages, no X. > > It is a bit tedious, but it can be done, Search for and purge xorg, gnome > stuff. > Aptitude remembers packages that have been installed as recommends and will > prompt > you to offer to remove them. 'deborphan' can help find & remove orphaned > libraries. > > > -- > Peace > > Greg Madden > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmaster(a)lists.debian.org > Archive: > http://lists.debian.org/201003191448.54996.gomadtroll(a)acsalaska.net > >
From: Mike Viau on 19 Mar 2010 20:00 On Fri, 19 Mar 2010 20:31:44 -0300 <rogluz.news(a)gmail.com> wrote: >Ok the bigger problem you should have is "what is a base system" I agree, what a base system means can be different among users. >You could run in another box a installation and get a list of the basic system packages, but what do you want the box for? give us a user case and we would try to sort this mess out for you. Thanks :) >Definitely purging X is a must -- that will take down about 90% of the "flavour" packages and none of the essential stuff, could you not start there ? Absolutely, I think that would be a good place to start >Do you need SQL ? Mail ? Apache ... etc ... Not at the moment. My hopes are to remove all the packages that have been installed as time progressed after the initial installation. I am fine with keeping the later versions that were not present on the installation media I used. >A use case would be great ... or is this a experiment? I suppose I can classify this as an experiment case, whereas I will likely later on try out various (which may include Apache, Samba, whatever really, etc) Debian packages on the system. This time I plan to keep better track of what I have installed so that the packages can be purged easily when I am finished with the application. Rogerio 2010/3/19 Greg Madden <gomadtroll(a)acsalaska.net> On Friday 19 March 2010 01:09:20 pm Mike Viau wrote: > > Date: Fri, 19 Mar 2010 21:31:40 +0100 > > From: iodine(a)runbox.no > > To: debian-user(a)lists.debian.org > > Subject: Re: How to reduce a debian system to a base system > > > > Mike Viau wrote: > > > In essence I would like to revert my system back to a freshly > > > installed state, without reinstalling. Ultimatly is this possible? > > > > -snip- > > > > > I was hoping to find a solution for a currently running Debian system > > > rather then to create a bare bone baseline or image... > > > > Wouldn't the easiest way be to backup all important data and > > reinstall? That _should_ give the same end result. But if that > > isn't a viable option for you, please explain why. Is this perhaps > > a remote server that you can't get your hands on, I can see how > > that would be a problem. > > > > -- > > Odd > > I do have physical access to the box, but it does not have an optical drive > to make re-installation painless. I temporarily borrowed a USB drive that > is not with me anymore. The hardware is very recent and last time I tried > to used the net install disk the e1000e driver I was unable to detect my > network card and the Debian setup insisted that I was to use Ethernet over > Firewire. Would be nice to have a 'snapshot' feature to revert to. I have used aptitude (dselect) to get close to a standard install, base + standard is not that many packages, no X. It is a bit tedious, but it can be done, Search for and purge xorg, gnome stuff. Aptitude remembers packages that have been installed as recommends and will prompt you to offer to remove them. 'deborphan' can help find & remove orphaned libraries. -- Peace Greg Madden -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/201003191448.54996.gomadtroll(a)acsalaska.net -M _________________________________________________________________ IM on the go with Messenger on your phone http://go.microsoft.com/?linkid=9712960
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