PS: On Thu, 2023-06-15 at 08:31 +0200, Fons Adriaensen wrote: > :: Starting full system upgrade... > resolving dependencies... > looking for conflicting packages... > :: blas-openblas and cblas are in conflict. Remove cblas? [y/N] n > error: unresolvable package conflicts detected > error: failed to prepare transaction (conflicting dependencies) > :: blas-openblas and cblas are in conflict > > So what should I do if I want to keep cblas, lapack, numpy, scipy > etc.. working ? A pointer to provided dependencies is already that e.g. scipy isn't mentioned. While cblas is conflicting, scipy isn't mentioned, hence another package does provide cbals, a dependency for scipy.