I am dual booting Ubuntu 15.10 and Windows 10. The problem is that the system boots directly into Windows. There is no grub menu shown during startup. In order to boot into Ubuntu I have to press ESC
on boot which brings a Startup Menu
with the following options:
F1 System Information
F2 System Diagnostics
F9 Boot Device Options
F10 BIOS Setup
F11 System RecoveryENTER - Continue startup
The above menu is HP specific diagnostic software (I think) which was installed in Windows. On pressing F9
it will bring Boot Option Menu
with the following options:
OS boot Manager
ubuntu (....)
Boot From EFI File
Notebook Hard Drive
Choosing ubuntu brings the grub menu with Ubuntu, Windows option. Choose Ubuntu again from grub to boot into Ubuntu. I am on HP e026ax. There is no UEFI. If there is no other OS and just Ubuntu, it will display the grub directly.
Partition Table from gparted:
Of all the Windows partition only two are created by me, the rest are automatically created by Windows and HP.