Re: Subtle difference in behavior of installation packages
On Wed, 08 Feb 2012 18:38:53 -0500, John Pietrzak wrote: apt-get remove without --purge won't remove conffiles, which would explain why /etc/sudoers.d/foo is still there ... And that's on purpose at least in Debian. BTW, what is Debian's purpose on keeping conffiles around? Is there value in having config info for nonexisting packages? (Should I not be worried about leaving sudoers files in the sudoers.d directory?) A package might be removed only temporarily or in error, and be reinstalled again later. In that case the admin will be happy to find their carefully tweaked config files instead of having to re-create them from scratch (or grab them from a backup or an older git revision). And in general conffiles lying around in /etc/ don't hurt. Cheers, gregor -- .''`. Homepage: http://info.comodo.priv.at/ - OpenPGP key 0xBB3A68018649AA06 : :' : Debian GNU/Linux user, admin, and developer - http://www.debian.org/ `. `' Member of VIBE!AT SPI, fellow of the Free Software Foundation Europe `- NP: Bruce Springsteen: The Promised Land signature.asc Description: Digital signature ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Subtle difference in behavior of installation packages
On 2/9/12 6:30 PM, gregor herrmann wrote: On Wed, 08 Feb 2012 18:38:53 -0500, John Pietrzak wrote: BTW, what is Debian's purpose on keeping conffiles around? Is there value in having config info for nonexisting packages? (Should I not be worried about leaving sudoers files in the sudoers.d directory?) A package might be removed only temporarily or in error, and be reinstalled again later. In that case the admin will be happy to find their carefully tweaked config files instead of having to re-create them from scratch (or grab them from a backup or an older git revision). And in general conffiles lying around in /etc/ don't hurt. Ah, I guess that makes sense. Thanks! --John ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Subtle difference in behavior of installation packages
Hi, On Wednesday 08 February 2012 13:10:25 John Pietrzak wrote: Hi folks, I've been working on a small Maemo app, and have reached the point where I've pushed it up to Extras-Devel. Almost everything works perfectly, except for one item: I've created a sudoers file for the app, in order to allow it to call modprobe to load a kernel module. (This is the lirc_rx51 module, needed for access to the IR hardware.) This file needs to go into the /etc/sudoers.d directory. I can install and uninstall the file just fine using the debian package I've constructed locally. When installing the app from the Extras-Devel repository, however, the application manager can place the file into /etc/sudoers.d, but seems unable to remove it when uninstalling. Try to run apt-get remove package in xterm. This is what application manager doing... Also see error in application manager log. I'm using the Qt SDK, and have recently upgraded to Qt Creator 2.4.1, so maybe the latest Qt software creates debian packages differently than the Extras system does... So, I guess these are my questions: 1) Do I need to do something special to install/uninstall files to the /etc directory in Maemo? I think nothing special. Only add your /etc files to conffiles in debian package, but this is done by debhelper script for dpkg-buildpackage. So really nothing. 2) Should I even be using /etc/sudoers.d to let my app access modprobe? What is the preferred way for an app to make requests of the kernel? Yes add sudoers file, run script for updating sudoers.d and use: sudo modprobe module Thanks! --John -- Pali Rohár pali.ro...@gmail.com signature.asc Description: This is a digitally signed message part. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Subtle difference in behavior of installation packages
On Wed, 08 Feb 2012 19:21:16 +0100, Pali Rohár wrote: I can install and uninstall the file just fine using the debian package I've constructed locally. When installing the app from the Extras-Devel repository, however, the application manager can place the file into /etc/sudoers.d, but seems unable to remove it when uninstalling. Try to run apt-get remove package in xterm. This is what application manager doing... Also see error in application manager log. apt-get remove without --purge won't remove conffiles, which would explain why /etc/sudoers.d/foo is still there ... And that's on purpose at least in Debian. If HAM can't be told to purge a package there's not much that can be done (short of using brute force in the postrm maintainer script. Ehh, this sounds ugly.). Cheers, gregor -- .''`. Homepage: http://info.comodo.priv.at/ - OpenPGP key 0xBB3A68018649AA06 : :' : Debian GNU/Linux user, admin, and developer - http://www.debian.org/ `. `' Member of VIBE!AT SPI, fellow of the Free Software Foundation Europe `- NP: Carole King: Will You Still Love Me Tomorrow signature.asc Description: Digital signature ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Subtle difference in behavior of installation packages
On Wednesday 08 February 2012 21:04:26 gregor herrmann wrote: On Wed, 08 Feb 2012 19:21:16 +0100, Pali Rohár wrote: I can install and uninstall the file just fine using the debian package I've constructed locally. When installing the app from the Extras-Devel repository, however, the application manager can place the file into /etc/sudoers.d, but seems unable to remove it when uninstalling. Try to run apt-get remove package in xterm. This is what application manager doing... Also see error in application manager log. apt-get remove without --purge won't remove conffiles, which would explain why /etc/sudoers.d/foo is still there ... And that's on purpose at least in Debian. If HAM can't be told to purge a package there's not much that can be done (short of using brute force in the postrm maintainer script. Ehh, this sounds ugly.). Cheers, gregor You can create sudoers.d file in postinst file and remove it in postrm. echo ... /etc/sudoers.d/... Or you can force debhelper to not add that sudoers file to conffiles. -- Pali Rohár pali.ro...@gmail.com signature.asc Description: This is a digitally signed message part. ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Subtle difference in behavior of installation packages
On 2/8/12 3:15 PM, Pali Rohár wrote: On Wednesday 08 February 2012 21:04:26 gregor herrmann wrote: apt-get remove without --purge won't remove conffiles, which would explain why /etc/sudoers.d/foo is still there ... And that's on purpose at least in Debian. If HAM can't be told to purge a package there's not much that can be done (short of using brute force in the postrm maintainer script. Ehh, this sounds ugly.). Yes, I tried the brute-force approach, and it was ugly. Ended up with the package manager thinking the sudoers file still existed. :( BTW, what is Debian's purpose on keeping conffiles around? Is there value in having config info for nonexisting packages? (Should I not be worried about leaving sudoers files in the sudoers.d directory?) You can create sudoers.d file in postinst file and remove it in postrm. echo ... /etc/sudoers.d/... Thanks, tried that out, and it works fine! I guess I'll just go with that for now... Thanks, --John ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
