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#1 Re: Installation » [SOLVED] Installing roundcube from beowulf-backports » 2021-05-03 10:05:26
Thanks. Ah, okay, I see, so in general, it would seem preferable to use -t, which means that I've been doing it wrong. :-(
Just to qualify this statement (that I made), I guess that there are situations where you would want to install package X from backports while minimizing other changes to your existing setup, in which case
apt-get install X/beowulf-backportswould be the better strategy. However, the risk with this strategy (as I found out), particularly if X has a number of dependencies, is that one of the dependencies (which is not installed from backports) is too old or isn't fully compatible with X from backports.
This is why the safest strategy would be to install X from backports using
apt-get -t beowulf-backports install X#2 Re: Installation » [SOLVED] Installing roundcube from beowulf-backports » 2021-05-02 22:11:28
From the man page:
-t, --target-release, --default-release
This option controls the default input to the policy engine; it creates a default pin at priority 990 using the specified release string.Using /beowulf-backports doesn't change the default release so APT can only attempt to draw the dependencies from beowulf.
apt install roundcube/beowulf-backports roundcube-core/beowulf-backports roundcube-mysql/beowulf-backports
Thanks. Ah, okay, I see, so in general, it would seem preferable to use -t, which means that I've been doing it wrong. :-(
I can install emacs
That's just a metapackage. Try
apt install -s emacs-nox/beowulf-backports
At the same time, the emacs metapackage did pull in the intended emacs version (27.1) from backports, which is why I thought that
apt-get install emacs/beowulf-backportsdid what I thought that it did. In other words, in the case of emacs,
apt-get install emacs/beowulf-backportsseemed to me to do what
apt-get -t beowulf-backports install emacswould have done (but it probably didn't do exactly the same thing after all).
#3 Re: Installation » to what extent can /usr/share actually be shared? » 2021-05-02 18:00:08
What about sharing the entire /usr directory? To what extent can the systems differ, or must they be packageclones of each other?
I wouldn't do it, at least not with /usr, and especially not with two different distributions.
On my setup, I have an ad hoc partition /data that is shared by two distributions, but of course, neither of the two distributions touches this directory.
#4 Installation » [SOLVED] Installing roundcube from beowulf-backports » 2021-05-02 17:03:39
- angstrom
- Replies: 3
The context: a fresh installation of Devuan Beowulf, the backports repository is activated.
For example, I can install emacs from backports unproblematically using the following command:
apt-get install emacs/beowulf-backportsSuppose that I follow the same strategy to install roundcube from backports:
apt-get install roundcube/beowulf-backportsThis results in an error message saying that roundcube can't be installed because one of its dependencies, roundcube-core, can't be installed, which puzzles me.
However, if I try to install roundcube from backports using the command
apt-get -t beowulf-backports install roundcubethen it works!
Does anyone know why there is this difference?
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