I installed last week on a real server no problem.
Now for self educational purposes, I wanted to reinstall in a VM, but I keep receiving error:
apt-get update cannot be used to add new CD-ROMs
E: Some index files failed to download. They have been ignored, or old ones used instead.
Error executing command, exiting
I’ve tried reinstalling the VM, but absolutely no change. the result is the same before and after apt-get upgrade.
What to do now? VM Software is: VMWare Pro 12
EDIT: I’ve been copy pasting the commands in PuTTy from splynx’ website.