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Cannot upgrade from 20.04 to 22.0X

ng flag
Carl Witthoft

I have run sudo apt update and aside from a failure to get stuff from the R repository, no problems. sudo apt upgrade runs fine.

But if I try to get the SoftwareUpdater tool to run, when I click the "upgrade" button, it crashes. I tried using sudo do-release-upgrade but it just tells me I need to run "update" first.

None of the advice on older question pages has helped. Is there something I should try to edit/clear/reset that might help? Am I going to be forced to start 'from scratch' with an ISO on a thumb drive?

UPDATE: I cleared out the bad item from the sources.list file, and now the update commands run without error (and without doing anything new). I tried all the additional apt commands provided in the comments, to no avail.

then this:

%  sudo do-release-upgrade
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.

% sudo apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  r-cran-foreign
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

That's all I get, and SoftwareUpdater still crashes if I try that out.

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David avatar
cn flag
David
Get rid of the sources entry for R. If you get a failure in update and upgrade a version upgrade wont work either. It is like a flat tire and you try to drive anyway.
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ru flag
Thomas Ward
@CarlWitthoft what does `sudo apt install r-cran-foreign` say? That will give us some insight into *why* the package does not upgrade/install such as dependency problems, etc. **Alternatively**, consider running `sudo apt remove r-cran-foreign` which will remove R from your system if that was installed separately by another source. And then install it again from wherever you got it *after* upgrading.
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Score:1
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ng flag
Carl Witthoft

Not only did I have to remove R items from the sources list, I had to run sudo apt remove r-cran-foreign , after which running the updater allowed me to execute sudo apt autoremove to completely clear out all installed R files. After this last step the OS updater ran successfully from SoftwareUpdater .

I'll worry about reinstalling the proper version of R later -- that I can deal with.

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