On Sat 10 Jul 2021 at 23:46:32 (+0200), Michael wrote: > On Saturday, July 10, 2021 10:26:03 PM CEST, David Wright wrote: > > I can't yet understand what you have done here. > > all i did was an apt-get -V dist-upgrade > > > > AIUI a2disconf > > removes symlinks in /etc/apache2/conf-enabled/ that were previously > > created there by a2enconf. > > that's correct > > > > OTOH, apache2-doc.conf is a pkg-provided conffile in > > /etc/apache2/conf-available/. During an upgrade, it will be > > automatically upgraded if it hasn't been altered. If you've > > altered it, then there's usually a dialogue presented about > > what to do¹. > > afaik this applies only to 'real' config files, like the ones like > /etc/apache/apache2.conf. apache2 configuration files in /etc/conf-* > are probably considered different.
My post is out-of-date, in that /var/lib/dpkg/info/apache2-doc.conffiles is now ignored in favour of debhelper commands, which I'm not conversant with. However, AFAIK there is only one category of conffile as far as APT is concerned. > i never altered this config file (or any other of those)! why should > i? if i need this file to be changed, i disable it with a2disconf (or > remove the symlink in /etc/conf-enabled/ myself), copy the source in > /etc/apache2/conf-available/ and change the copy. i never touch > original package files if there is a way to circumvent it. > > > But in any case, that's nothing to do with > > symlinks in /etc/apache2/conf-enabled/. > > agreed. > > > A more specific description of the symptoms might help. > > well, here is what '/var/log/apt/term.log' sais: > Log started: 2021-07-09 09:01:44 > (Reading database ... ^M(Reading database ... 5%^M(Reading database > ... 10%^M(Reading database ... 15%^M(Reading database ... > 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading > database ... 35%^M(Reading database ... 40%^M(Reading database ... > 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading > database ... 60%^M(Reading database ... 65%^M(Reading database ... > 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading > database ... 85%^M(Reading database ... 90%^M(Reading database ... > 95%^M(Reading database ... 100%^M(Reading database ... 41615 files and > directories currently installed.) > Preparing to unpack .../apache2_2.4.38-3+deb10u5_amd64.deb ... > Unpacking apache2 (2.4.38-3+deb10u5) over (2.4.38-3+deb10u4) ... > Preparing to unpack .../apache2-bin_2.4.38-3+deb10u5_amd64.deb ... > Unpacking apache2-bin (2.4.38-3+deb10u5) over (2.4.38-3+deb10u4) ... > Preparing to unpack .../apache2-data_2.4.38-3+deb10u5_all.deb ... > Unpacking apache2-data (2.4.38-3+deb10u5) over (2.4.38-3+deb10u4) ... > Preparing to unpack .../apache2-utils_2.4.38-3+deb10u5_amd64.deb ... > Unpacking apache2-utils (2.4.38-3+deb10u5) over (2.4.38-3+deb10u4) ... > Preparing to unpack .../apache2-doc_2.4.38-3+deb10u5_all.deb ... > Unpacking apache2-doc (2.4.38-3+deb10u5) over (2.4.38-3+deb10u4) ... > Setting up apache2-bin (2.4.38-3+deb10u5) ... > Setting up apache2-doc (2.4.38-3+deb10u5) ... > Package apache2 is not configured yet. Will defer actions by package > apache2-doc. > Setting up apache2-data (2.4.38-3+deb10u5) ... > Setting up apache2-utils (2.4.38-3+deb10u5) ... > Setting up apache2 (2.4.38-3+deb10u5) ... > info: Executing deferred 'a2enconf apache2-doc' for package apache2-doc > Enabling conf apache2-doc. > Processing triggers for man-db (2.8.5-2) ... > Processing triggers for systemd (241-7~deb10u7) ... > Log ended: 2021-07-09 09:02:06 > > please recognize the lines that say: > > info: Executing deferred 'a2enconf apache2-doc' for package apache2-doc > Enabling conf apache2-doc. > > this tells me that apt-get enables the configuration file although i > disabled it on purpose. Yes. Glancing at the scripts in /var/lib/dpkg/info/apache2-doc*, it's not clear to me where the current enabled-state is retained. I would've thought it necessary to run a2query before upgrading, to find out whether to run a2enconf on each element. AFAICT the deferred 'a2enconf apache2-doc' should not be run unless there's a symlink in conf-enabled/ (and on fresh installation, of course). It looks like a bug that resembles #977014, but which should be at normal level rather than wishlist. > fwiw: i think 'configuration files' in apache2 are not the same as the > configuration files of packages you probably thought of (and are right > about). Logically, I'd agree that they operate in different ways, but AFAICT APT sees them as the one category: conffiles. And that suggests a workaround: Put # at the beginning of each line in /etc/apache2/conf-available/apache2-doc.conf. Having done this, 'a2enconf apache2-doc' is effectively impotent, and any upgrade should invoke the dialogue I posted earlier, to which you can reply N (keep your installed version). [Note to self: read up on debhelper, and treat /var/lib/dpkg/info/*conffiles with due circumspection.] Cheers, David.