Keskustelu: Yleinen keskustelu: Ongelma Sagen asentamisessa

sudo apt-add-repository -y ppa:aims/sagemath
...
sudo apt-get update
...
sudo apt-get install sagemath-upstream-binary
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package sagemath-upstream-binary is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'sagemath-upstream-binary' has no installation candidate