Boot problem 12.04.4 LTS
10252
How to fix "The system is running in low-graphics mode" error?
78405
I can't get grub menu to show up during boot
9332
Cannot boot system due to start job running for hold
132354
Removed Windows 7 and installed Ubuntu Server 12.04, but Windows Boot Manager still appears
142786
Boot to console (standard method fails)
8914
Grub rescue - error: unknown filesystem
27017
How to fix a grub boot error : "symbol 'grub_calloc' not found
6346
How do I avoid the "S to Skip" message on boot?
144646
Can't boot Windows XP after installing Ubuntu 12.04
79817
How do I troubleshoot random rebooting?
141240
Problem booting after updating from Ubuntu 14.10 to 15.04
96797
Cannot boot because: Kernel panic - not syncing: Attempted to kill init!
672
Unable to boot into Windows after installing Ubuntu, how to fix?
17833
"GPT detected. Please create a BIOS-Boot partition" while using boot-repair
110099
Booting ubuntu gives "init not found"
157857
How do I boot my PC from GRUB?
46966
Ubuntu 12.04 LTS Got freezing while preparing to install