root@ctech:/etc/apt# add-apt-repository ppa:elmer-csc-ubuntu/elmer-csc-ppa
Archive for the monolithic Elmer FEM software ubuntu packages.
More info: https://launchpad.net/~elmer-csc-ubuntu/+archive/ubuntu/elmer-csc-ppa
Press [ENTER] to continue or ctrl-c to cancel adding it
gpg: keybox '/tmp/tmpesl6mv32/pubring.gpg' created
gpg: /tmp/tmpesl6mv32/trustdb.gpg: trustdb created
gpg: key 89358ABF9FB7E178: public key "Launchpad PPA for Elmer CSC ubuntu packaging" imported
gpg: Total number processed: 1
gpg: imported: 1
gpg: no valid OpenPGP data found.
root@ctech:/etc/apt# apt update
Hit:1 http://security.debian.org/debian-security stable/updates InRelease
Hit:2 https://repo.skype.com/deb stable InRelease
Hit:3 http://mirror.keystealth.org/debian stable InRelease
Hit:4 http://mirror.keystealth.org/debian stable-updates InRelease
Ign:5 http://ppa.launchpad.net/elmer-csc-ubuntu/elmer-csc-ppa/ubuntu groovy InRelease
Err:6 http://ppa.launchpad.net/elmer-csc-ubuntu/elmer-csc-ppa/ubuntu groovy Release
404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/elmer-csc-ubuntu/elmer-csc-ppa/ubuntu groovy 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 configuration details.
I don't quite know what is involved with adding a Release file. I'm not even sure that that is the real problem. See the error at line 6. My "sources.list.d" directory includes the following:
I guess there are no instructions for release "Groovy" of Ubuntu. Just tried to copy the instructions from "Disco" to "Groovy" and "Focal". The 1st one has some problems whereas the 2nd one seems to compile...
The problem seems to be that Groovy is picky on the argument mismatch of old Fortran routines in Arpack but does not care of our fix for it (using -std=legacy). Focal and Disco are happy with the exact same build rule.
this system is using apt-secure and since there is no release file in the repository it is disabled by default, you can by pass the disable on apt-get by using the option
Pass the --allow-unauthenticated option to apt-get as in:
Sorry about the long delay on answering this. Got tied up with a lot of other things. Short answer the problem persists. But, i am locked out of all of the ppa's that i've tried to use since Debian started messing around with the security. I gave up and compiled from source code. Works fine. i noticed that verson 9 is out. I may install that.
Thanks for you previous replies and, again, sorry about the delayed reply.