Johannes, Dirk, thanks for keeping discussing this. I can confirm it works now. Thank you for the solution.
> Sorry Mark, it was me who did not read as much as I should - you are on a > fresh buster system, so no need to remove r-api-35 packages... Absolutely no problem. I'm happy it's solved. In case ppl are curious why I use Buster: it's the latest Debian currently offered by my cloud provider. Cheers, Mark On Sat, Jun 6, 2020 at 1:25 AM Johannes Ranke <johannes.ra...@jrwb.de> wrote: > Am Freitag, 5. Juni 2020, 20:04:48 CEST schrieb Dirk Eddelbuettel: > > On 5 June 2020 at 08:52, Johannes Ranke wrote: > > | Hi Mark, > > | > > | Am Freitag, 5. Juni 2020, 00:31:34 CEST schrieb Mark van der Loo: > > | > Hi all, > > | > > > | > I just spun up a fresh Debian Buster instance, then I added: > > | > > > | > deb http://cloud.r-project.org/bin/linux/debian buster-cran40/ > > | > > > | > to /etc/apt/sources.list. I also ran the apt-key command as described > > | > here: > > | > https://cran.r-project.org/bin/linux/debian/#secure-apt > > | > > > | > So far so good, > > | > > | OK, then you need to keep reading. Instead of simply installing R 4.0.0 > > | you > > | need to remove the packages depending on r-api-35 as detailed in > > Sorry Mark, it was me who did not read as much as I should - you are on a > fresh buster system, so no need to remove r-api-35 packages... > > Also, I think I have run into the same problem (r-recommended > uninstallable) > when checking the situation on buster in a chroot. > > > | https://cran.r-project.org/bin/linux/debian/#debian-bullseye-testing > > | > > | The reason is that the backported r-cran-* packages have a lower > version > > | number than the r-cran-* packages in the Debian archive, but the > packages > > | in the Debian archive depend on r-api-35 while the new backport > provides > > | r- api-40. > > > > That sounds ... suboptimal. And I am not sure I understand why that would > > be. Can you explain? Are they behind a version? If so, why? > > OK, for buster I updated the backports of the recommended packages. I > think > things are fine now (pending CRAN syncs), i.e. the backport to buster > including > the recommended packages should be installable using > > apt install -t buster-cran40 r-base > > If you have buster packages depending on r-api-35 installed, these will be > removed by the above command (just tested in my buster chroot). > > Cheers, > > Johannes > > > Also, apt-pinning can help here. You can give a repo a > higher-than-default > > priority. Maybe that would be applicable here? > > > > Dirk > > > > | Also, you will need to rebuild all locally installed packages as > detailed > > | on the CRAN Debian page. > > | > > | Greetings, > > | > > | Johannes > > | > > | > now when I do the following, I get no joy: > > | > > > | > $ sudo apt-get install r-base > > | > > > | > 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: > > | > r-base : Depends: r-recommended (= 4.0.0-1~bustercran.0) but it is > not > > | > > > | > going to be installed > > | > E: Unable to correct problems, you have held broken packages. > > | > > > | > > > | > However, when I use the buster-cran-35 deb line, all works fine. So > > | > there > > | > seems to be something going on with buster-cran-40. Is this correct, > or > > | > am > > | > I missing something? > > | > > > | > Thanks, > > | > Mark > > | > > > | > [[alternative HTML version deleted]] > > | > > > | > _______________________________________________ > > | > R-SIG-Debian mailing list > > | > R-SIG-Debian@r-project.org > > | > https://stat.ethz.ch/mailman/listinfo/r-sig-debian > > | > > | _______________________________________________ > > | R-SIG-Debian mailing list > > | R-SIG-Debian@r-project.org > > | https://stat.ethz.ch/mailman/listinfo/r-sig-debian > > > > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian
