I hope one or more of you can help me. I upgraded today from Ubuntu 18.04 LTS to 20.04 LTS on my desktop computer. (I know I am way behind, but I can do this only in the summer etc., etc.) I used the built-in Ubuntu update feature. It worked better than I expected and took less that two hours. The data backups I did ahead of time took much longer. Anyway, 20.04 is running but I have two problems. Number One: Many terminal commands give this message: Errors were encountered while processing: linux-image-4.15.0-212-generic Processing was halted because there were too many errors. W: Can not find PkgVer for 'linux-image-extra-4.4.0-122-generic' E: Sub-process /usr/bin/dpkg returned an error code (1) In particular, here is what happens when I try to remove 4.4.0-212. sudo apt-get --purge remove linux-image-extra-4.4.0-212-generic Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package linux-image-extra-4.4.0-212-generic E: Couldn't find any package by glob 'linux-image-extra-4.4.0-212-generic' E: Couldn't find any package by regex 'linux-image-extra-4.4.0-212-generic' Number Two: I cannot get audio out of Line Out to my speakers. And I cannot get audio into Line In to make recordings. I *do* get audio from the audio output on my HDMI monitor. This might be related to the need for codecs, but when I try various terminal commands to load more codecs, I get problem Number 1 ! Some of what I read on the Web mentions tex files that could cause Number 1. I do have TeXstudio installed. I tried to uninstall texstudio and texlive, but when I do that, I get the message ant Number One! I'd appreciate any help or suggestions. Thank you. George Caplan email: gmcaplan@gmcaplan.org Phone: 978-263-5288 (landline, no texts)