Ubuntu 14.04 Boot – plymouth-upstart-bridge Issue

Force Ubuntu boot into console :

Edit :  /etc/defaults/grub

Uncomment to disable graphical terminal (grub-pc only)

#GRUB_TERMINAL=console
to
GRUB_TERMINAL=console

Set line

GRUB_CMDLINE_LINUX_DEFAULT="noplymouth"

Save it .

Run update-grub