I'm trying to install maxima ppa in Ubuntu in 18.04 in VirtualBox in windows 10. Gunter from maxima thinks you can help ( I can't get octave to install either... ):
Gunter's email ( starts with edited version of my ppa attempt, see below ) :
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/octave/stable/ubuntu bionic
Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user
Then it isn't the thing I was afraid of: For a time Ubuntu used weak gpg
signatures and then started complaining if one still used them.
My guess what has happened is:
- The system that produced this error message includes an ppa version
- it was recently updated to bionic
- and the Ubuntu nightly Build ppa was added.
Now it complains (in cryptical form, alas!) that there is no software
for Ubuntu bionic in the Octave ppa. So it cannot decide what to do.
The maintainer of the Octave ppa should be likely to be able to fix this
My ppa attempt:
graeme@graeme-VirtualBox:~$ sudo add-apt-repository ppa:maxima-developers/maxima-nightly
[sudo] password for graeme:
Nightly builds of maxima, a free and powerful Computer Algebra System.
Maxima was compiled with 3 lisps:
- If only maxima-sbcl is installed or if maxima is invoked as "maxima -l sbcl" maxima will quite fast. It will also be able to run on systems that don't have the lisp maxima was compiled with installed.
- If only maxima-gcl is installed or if maxima is invoked as "maxima -l gcl" maxima might be faster or slower than the gcl build depending on the problem. One advantage of gcl is the fast bignum routines that are built into it. The gcl flavour will only work
on systems the exact gcl build is installed on maxima was compiled with.
- if maxima is invoked as "maxima -l clisp" or if maxima-clisp is the only flavour installed maxima is slow, but extremely memory-efficient. Maxima-clisp requires a similar clisp to that it was compiled with installed on the target system.
There is no guarantee that the result of a nightly build works. As the developer team aims for stability, though, most of the time it is quite stable. Also the development team will be interested in the information that the nightly build shows errors, should
that be the case.
Press [ENTER] to continue or Ctrl-c to cancel adding it.