Upgraded Ubuntu from 14.04 to 16.04, hangs on boot, can use recovery mode but unclear what's actually broken
103982
16.04 VirtualBox VM (from vhd file) hangs at "non blocking pool is initialized"
19755
Ubuntu 14.04 doesn' t boot after upgrade from 12.04 installed inside Windows 8.1
106283
Boot hangs after installing the latest driver from PPA and Ctrl+Alt+F1 keyboard shortcut doesn't work
104199
Ubuntu 16.04 LTS cannot suspend / fails on suspending
7357
upgrade to 13.10 stalled and restart failed
154383
15.04 - very slow boot
60507
Disk Utility (recovery mode) stuck at loading
39053
16.04 apt-get update hangs
135692
ubuntu 14.04 black screen when installing
141210
Boot stuck at logo screen after upgrading to 14.10
100323
Stuck on blue screen while booting the system
87551
How to repair grub?
141240
Problem booting after updating from Ubuntu 14.10 to 15.04
114595
Ubuntu hangs after replugging the modem
2581
Could not load 'vboxdrv' after upgrade to Ubuntu 16.04 (and I want to keep secure boot)
134374
Crazy boot and reboot times after upgrading to ubuntu 15.04 (a stop/start job is running for session c2)
5602
Boot drops to a (initramfs) prompts/busybox