On Mon 01 Jul 2019 at 07:32:20 (+0000), Fabian peter Hammerle wrote: > I set up an APT repository containing 2 packages: foo and bar > > The repository contains 2 versions of foo: 1.0.0 and 2.0.0 > and 2 versions of bar: 3.0.0 and 4.0.0 > > foo 1.0.0 depends on bar 3.0.0 > foo 2.0.0 depends on bar 4.0.0 > > I can easily install the latest version of foo via > ``` > $ sudo apt-get install foo > [...] > The following NEW packages will be installed: > foo bar > [...] > Setting up bar (4.0.0) ... > Setting up foo (2.0.0) ... ``` > > I get the same result when running `sudo apt-get install foo=2.0.0` > > However, apt-get fails to install foo 1.0.0 > ``` > $ sudo apt-get install foo=1.0.0 > Reading package lists... Done > Building dependency tree > Reading state information... Done > Some packages could not be installed. This may mean that you have > requested an impossible situation or if you are using the unstable > distribution that some required packages have not yet been created > or been moved out of Incoming. > The following information may help to resolve the situation: > The following packages have unmet dependencies: > foo : Depends: bar (= 3.0.0) but 4.0.0 is to be installed > E: Unable to correct problems, you have held broken packages. ``` > > Currently, I workaround this issue by running `sudo apt-get install foo=1.0.0 > bar=3.0.0`. > > How can I instruct apt-get to automatically install an older version of bar > as required by foo?
Presumably by employing the same method that linux-image uses: by moving/copying the version number into the packages' names, foo-1 and foo-2. > Or in other words: How can I make `apt-get install foo=1.0.0` install both > foo 1.0.0 and bar 3.0.0 (dependency of foo 1.0.0). Cheers, David.
