I was upgrading my Ubuntu distro and shut down the laptop in the middle of the installation process. Upon restart, I only get a black screen with these messages:Starting Hardware RNG entropy gatherer daemon: (Hardware RNG device inode not found)/etc/rc2.d/S21rng-tools: Cannot find a hardware RNG device to use.saned disabled: edit /etc/default/saned* Restoring resolver state... [OK]And then it waits there forever.Is there any way to restore Ubuntu or does it need a fresh install?I would hate to have to reinstall and reconfigure my development environments all over again.
Ubuntu freeze after upgrade installation interrupt
ubuntu;upgrade
You have hosed the installation and you need to do a fresh OS install.If you've been doing proper backups of your whole system, restore from your latest backup and then redo the upgrade. You should do such a backup before any OS update.If you don't have such a backup, then wipe the system and do a full OS reinstall.  Even if you can kludge the system into running again, there are too many ways the system could be broken to trust it further.There are no circumstances under which I would do anything with such a system other than restore from backups and upgrade, or wipe and reinstall from scratch.