Dual boot after ubuntu install not working - NO EFI and different hard drive
66685
Installing Ubuntu on one of two hard drives
11760
Ubuntu 17.04 will not boot on UEFI system with XFS system partition
146201
'Upgraded' to Windows 10 on dual boot, and can't boot to Ubuntu partition
126804
My ubuntu partition was deleted and I can't boot from either a DVD or USB
23908
How can I reinstall GRUB to the EFI partition?
39946
How to show GRUB after install Ubuntu over Windows 8?
7745
Dual boot UEFI Windows 7 and Ubuntu 12.04 (both 64 bits). W7 entry doesn't appear in GRUB
94557
How can I install a dual boot configuration with Ubuntu and Windows XP?
112313
Dual booting Windows and Ubuntu
21369
Boot error after screwing up dual-boot files
130437
Can I erase all partitions including EFI and install only Ubuntu?
47167
Installed Ubuntu 15.1 on USB (full install) but it won't boot
21039
Can't boot Windows 7 after installing Ubuntu 12.04 LTS
14623
Dual boot system
69941
How do I install Ubuntu on a second hard drive?
122210
Setup Windows 7 and Ubuntu on same hard drive
5413
How can I repair grub? (How to get Ubuntu back after installing Windows?)