Ubuntu doesn't boot after installation
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)
14617
Dual-boot boot menu does not show up after installing Ubuntu 15.10 alongside Windows 10
26845
Ubuntu 18.04 Won't Boot on Dell Inspiron 7375
124014
Black screen after installation of Ubuntu 18.04
19762
How to reset Ubuntu installation
129105
Can't boot, no grub, "alloc magic is broken"
15124
Can't boot Ubuntu or Windows 8 after Ubuntu 64-bit install on Samsung series 7 Windows 8 laptop, error "All boot options are tried."
67935
Windows 7 won't boot after installing Ubuntu 11
90466
Can not boot Windows on Legacy BIOS after installing Ubuntu on UEFI
55300
Can't boot from Ubuntu USB stick
52539
Why can't I choose Ubuntu at boot?
137788
Bootable device not found after clean install of Ubuntu 14.04 UEFI on Acer
27915
How to fix very slow Ubuntu booting?
113006
Grub rescue after removing Ubuntu?
144646
Can't boot Windows XP after installing Ubuntu 12.04
135382
Ubuntu won't boot - kernel error?
80116
Can't boot XP after Ubuntu Installation, how to fix?