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Upon performing an upgrade from Ubuntu 17 to Ubuntu 18.04 LTS, my PC was in standby mode, thereby interrupting the last 1/4 portion of the upgrade. When trying to boot normally- "Ubuntu*"; "Linux 4.7.2", the machine loads the drive and asks for password. Then the screen just goes blank. If I boot into 4.7.2 recovery mode, I am able to access Ubuntu 18.04 and login.
Grub configuration is at i8042.reset nomodeset. Previously it was set to quiet splash. Neither has solved the boot issue.
What can I do to solve the interrupted upgrade process (to where the upgrade did not successfully complete during running in Ubuntu 17), and to where I can boot into Ubuntu without recovery mode?
LSB Version: core-9.20170808ubuntu1-noarch:printing-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch Distributor ID: Ubuntu Description: Ubuntu 18.04 LTS Release: 18.04 Codename: bionic
4.7.2-040702-generic #201608201334 SMP Sat Aug 20 17:37:03 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux