Ack, I left out how I proved my my conclusion above. I copied the failed to fetch addresses into into the address bar of Firefox ie: Http://us.archive.ubuntu.com/ubuntu/pool/main/libc/libcgi-pm-perl_4.26-1_all.deb and received: "404 not found The requested URL /ubuntu/pool/main/libc/libcgi-pm-perl_4.26-1_all.deb was not found on this server.
Apache/2.4.18 (Ubuntu) Server at us.archive.ubuntu.com Port 80" I then shortened the addresses to Http://us.archive.ubuntu.com/ubuntu/pool/main/libc/ and found myself on the archive page for libc where I found the omitted directory /libcgi-pm-perl/ You can substantiate what I found by following what I did above. 'temporary failure resolving "us.archive.ubuntu.com' message is puzzling. It could indicate a network problem, but by doing what I did above I eliminated that as the cause. I will add this comment to bug #1615771 as well. I look forward to your questions, And thank you for your time and effort. You are saving this old disabled vet from the machinations of the M-word. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1615771 Title: fetching libcgi files in wrong directory prevents 14.04 to 16.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1615771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs