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  • Re: about systemd service leftovers

    From Davide Prina@21:1/5 to Patrice Duroux on Sun Apr 7 15:10:01 2024
    Patrice Duroux wrote:

    By the time on my Sid system, there is an accumulation of:

    $ systemctl list-units --all | grep '●'

    probably it is best to use
    $ systemctl list-units --all --state=not-found

    I try to understand where is the problem

    For example
    $ LANG=C dpkg -l podman
    dpkg-query: no packages found matching podman

    $ systemctl list-units --all podman.service
    UNIT LOAD ACTIVE SUB DESCRIPTION
    ● podman.service not-found inactive dead podman.service
    [...]

    but there is not podman.service file anywhere
    there is not a dependency in any systemd service

    but:
    $ systemd-analyze dump podman
    Unit podman.service:
    Description: podman.service
    Instance: n/a
    Unit Load State: not-found
    Unit Active State: inactive
    State Change Timestamp: Sun 2024-04-07 11:41:49 CEST
    Inactive Exit Timestamp: n/a
    Active Enter Timestamp: n/a
    Active Exit Timestamp: n/a
    Inactive Enter Timestamp: n/a
    May GC: yes
    Need Daemon Reload: no
    Transient: no
    Perpetual: no
    Garbage Collection Mode: inactive
    Slice: n/a
    CGroup: n/a
    CGroup realized: no
    WantedBy: multi-user.target (destination-file)
    ReferencedBy: multi-user.target (destination-file)

    so I found a dead symlink
    $ ls -l /etc/systemd/system/multi-user.target.wants/podman.service
    lrwxrwxrwx 1 root root 34 1 ago 2020 /etc/systemd/system/multi-user.target.wants/podman.service -> /lib/systemd/system/podman.service

    $ LANG=C ls -l /lib/systemd/system/podman.service
    ls: cannot access '/lib/systemd/system/podman.service': No such file or directory

    It seem that removing podman package don't remove the symlink

    Ciao
    Davide

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  • From Andrey Rakhmatullin@21:1/5 to Patrice Duroux on Sat Apr 13 21:30:01 2024
    On Sat, Apr 13, 2024 at 08:30:35PM +0200, Patrice Duroux wrote:
    Ok so this is probably due to the version of the DHs used when generating the postrm script during packaging.
    How?

    On my system, the diversity is quite large regarding all the installed packages
    and the dh_installsystemd:

    $ grep -ho 'dh_installsystemd/.\+' /var/lib/dpkg/info/*.postrm | cut -d '/' -f 2 | sort -u
    13.10
    13.11.1
    13.11.4
    13.11.6
    13.11.7
    13.11.8
    13.11.9
    13.13
    13.14.1
    13.15.2
    13.15.3
    Does this lead to any problems?

    For a given (old)stable release, is this more homogeneous?
    No. Packages are not rebuilt for each release.

    Under control by any QA tool?
    No, as it's not considered a problem.

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