On Sat, 07 Nov 2020 19:11:45 -0300, Eike wrote in message
<1837090.H3z0i6zCVW@lxcl01>:

> Hi Arnt,
>
> thanks for answering and for the extra recommendations.
>
> On Saturday, 7 November 2020 18:38:48 -03 Arnt Karlsen wrote:
> > On Sat, 07 Nov 2020 16:22:24 -0300, Eike wrote in message
> >
> > <1632636.6XzDy3geBR@lxcl01>:
> > > On Saturday, 7 November 2020 15:52:25 -03 Ludovic Bellière
> > > wrote:
> > > > Hi Eike,
> > > >
> > > > Install libelogind0 first, so it takes precedence over systemd,
> > > > then
> > > > elogind.
> > >
> > > Thanks - but ->
> > > That is impossible because of a catch-22.It is not even possible
> > > to deinstall/purge libsystemd0it seems to be there to haunt me.
> > >
> > > Copy and paste off aptitude introduced some not-so-nice
> > > esc-sequences
> > > into the text. I hope that it will not mess-up the message too
> > > much.
> >
> > ..2 main ways: use aptitude to pick the version you want.
> aptitude isn't good at hen-and-egg-problems

..I find it's pretty good at showing you solutions; break some package,
when it whines "Broken package", hit "e" and "." or "," to browse thru
to some solution as close as possible to what you want, and mod that to
what you want. Rip out stuff you want gone with dpkg --force-* trains.

> > ..if aptitude's error handling fails to find a solution, try apt
> > and apt-get, they do things differently, and if those fail, we have
> > rpm-style nuclear --force purge options to find with dpkg --help
> > and dpkg --force-help, just line or pile 'em up. ;o)
>
> Good grief!
>
> Yep apt does things differently.
> apt: ""You are about to do something potentially harmful."
> I typed "Yes, yadda yadda ..."
> It deinstalled hundreds of packages, just as I instructed it to do,

...with apt* et al. Is why I propose dpkg -P --force-* trains.

.."-P" == "--purge", I failed to include that, I thought it was
obvious in the context of your thread here, my bad.

..by "just line or pile 'em up", I meant line up --force-* options
after "dpkg -P trumpackage" until it does obey your stupid command.
(It will still whine, because breaking your box is generally
considered stupid if you don't know how to fix it.)

..once you've ripped out the trumpy stuff, your box is broken, fix
it with e.g. aptitude and dpkg --configure -a replacing the missing
trumpy bits you threw out, with whatever you want instead.

> including apt, aptitude and deselect. Tadaaaa!
> I had a snapshot and restored it.
> Now, there is obviously no way out of this - so be it.
> I will do a fresh install of Beowulf because I really have more
> important things to do.
>
> > ..once you've thrown out the trump you want out, refer back to
> > Ludovic's advice. ;o)
> not biting the hook ...

.. ;o)

> Cheers to all and also all the best
> Eike
>
>
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--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.