query: Can't boot after upgrading from 14.10 to 15.04
positive_passages.docid: 1285
positive_passages.text: My computer boots to a black screen, what options do I have to fix it?
negative_passages.docid: 113006
negative_passages.text: Grub rescue after removing Ubuntu?
negative_passages.docid: 146065
negative_passages.text: How do I fix booting process in Ubuntu 12.04 after the windows7 removed?
negative_passages.docid: 116397
negative_passages.text: Can't reach login screen after accidental power loss during an upgrade
negative_passages.docid: 149984
negative_passages.text: Can't update or install anything. Ubuntu 3.11.0.14
negative_passages.docid: 73121
negative_passages.text: How can I force Ubuntu to boot on a stuck boot menu?
negative_passages.docid: 46173
negative_passages.text: Can't boot Windows 7 after installing Ubuntu
negative_passages.docid: 106283
negative_passages.text: Boot hangs after installing the latest driver from PPA and Ctrl+Alt+F1 keyboard shortcut doesn't work
negative_passages.docid: 82914
negative_passages.text: Where is the boot loader installed?
negative_passages.docid: 20398
negative_passages.text: dpkg broken after 15.04 upgrade fail
negative_passages.docid: 55211
negative_passages.text: Problem when upgrading to Ubuntu 14.04 from Ubuntu 12.04
negative_passages.docid: 21039
negative_passages.text: Can't boot Windows 7 after installing Ubuntu 12.04 LTS
negative_passages.docid: 65808
negative_passages.text: 17.10 to 18.04 upgrade freezes during boot
negative_passages.docid: 27109
negative_passages.text: After the upgrade to 17.10 I only get a black screen. How do I fix this?
negative_passages.docid: 104717
negative_passages.text: Can't launch graphical apps from terminal after updating to 15.10
negative_passages.docid: 27352
negative_passages.text: Login broken after 15.10 -> 16.04 LTS upgrade, related to NVIDIA driver
negative_passages.docid: 672
negative_passages.text: Unable to boot into Windows after installing Ubuntu, how to fix?