Updating ubuntu 7 04
If you run a firewall, you may need to temporarily open this port.As this is potentially dangerous it's not done automatically.Before upgrading, consider reading the Xenial Xerus Release Notes.
You may still need to review differences in software configuration when upgrading, but the core system will likely have greater stability.On Digital Ocean systems, it is safe to ignore this warning and proceed with the upgrade, since a local mirror for 16.04 is in fact available. Continue [y N] Details [d] New packages will now be retrieved, then unpacked and installed.Enter y: Updating repository information No valid mirror found While scanning your repository information no mirror entry for the upgrade was found. Even if your system is on a fast connection, this will take a while.For other systems under your control, remember that it’s safest to perform major operating system upgrades only when you have direct physical access to the machine.At the prompt, type y and press Enter to continue: Reading cache Checking package manager Continue running under SSH? It is not recommended to perform a upgrade over ssh currently because in case of failure it is harder to recover.