I just installed Ubuntu 18.10. After the install, I was able to boot into the desktop, navigate over to Software & Updates, and install the proprietary Nvidia drivers from Additional Drivers. I rebooted after the installation of the drivers, and now it is hanging during the boot.
The few times I've been able to get out of the infinite loading dots and to the terminal output, I've seen this message (and it can go on for hours if left alone):
A start job is running for Hold unt■ishes up( <counter> / no limit)
Which steps should I take next to solve this issue?
EDIT: This edit is to notify readers that I have tried the following:
- Adding
nomodesetafterquiet splashin the kernel boot line options - Booting into an older kernel (in this case,
14.18.0-10 generic) didn't work. - Booting into recovery mode and fixing broken packages with dpkg

nomodesetkernel parameter? Did you install a bunch of SNAP applications after your install? Can you boot to Recovery Mode from the GRUB menu? – heynnema Mar 12 '19 at 23:42nomodesetdoesn't make a difference when placed afterquiet splash, and booting into recovery mode and repairing broken packages doesn't work. AND completely reinstalling doesn't matter either (after installing the Nvidia driver again). – Josh Mar 13 '19 at 21:124.18.0-10 genericdoesn't seem to make a difference either. – Josh Mar 13 '19 at 21:16nividia-driver-390– Josh Mar 17 '19 at 17:44fsckwas showing a bad super block, e2fsck is saying the drive has a dos partition. I've usedfdiskto reformat. Threw a GPT partition on it, and I'm reinstalling Ubuntu. – Josh Mar 17 '19 at 18:11nvidia-driver-390is what is available in the Software & Drivers Additional Drivers window. It's tested. I've had a poor experience with Linux and manually installing Nvidia drivers. – Josh Mar 17 '19 at 18:12fscknow, I just tried on a brand new hard drive. Same issue persists... – Josh Mar 19 '19 at 23:24terminaldomd5sum filename.isoand compare that number with what you see in the md5sums file, and make sure they match. – heynnema Mar 20 '19 at 02:57sudo add-apt-repository ppa:graphics-drivers/ppaand installednvidia-driver-418, now I boot to a black screen. – Josh Mar 20 '19 at 21:32nomodesetand at least you'll probably be able to fully boot. – heynnema Mar 21 '19 at 12:57