2

It took me days to overcome my pride and come out with a question that basic but I kept hitting brick wall with my head for too long now..

I have installed Ubuntu 16.04.2 last week. My PC is currently running on Windows 8.1. I have an Acer VN7-571G-586D.

I had no problem with Ubuntu installation, but eversince it was done I didn't access the OS. I have of course tried to run grub menu by pressing, holding, clicking (in different quantities) shift (left+right), esc, space and more keys during BIOS boot, after it and beforehand not to avail. I have put windows boot manager on first slot in BIOS boot order. I have just ran the general process of Boot-repair via USB (I rather didn't try other repair options so far being an amateur). Here is the log http://paste.ubuntu.com/25178328/.

None of those worked and finally I feel like I can't continue on my own. I haven't received any error message during installation, nor while trying the options above. Any ideas?

Bold Moves
  • 23

2 Answers2

0

I run a dual-boot on a couple machines. Once in a while, Windows 10 will decide to override my BIOS settings and will change the default boot from 'ubuntu' to 'Windows'.

Once you go into the BIOS (in Windows, hold SHIFT when pressing the Restart button. It will bring you to your boot prompt settings. Go to Troubleshoot > Advanced > UEFI Firmware), you can check to make sure SecureBoot is off, and under BOOT that 'ubuntu' is the first boot option.

This will get the GRUB boot screen to show when booting. There you can chose Windows or Ubuntu (default).

UPDATE: Taken from this post:

After reboot, I needed to go back into the bios, re-enable Secure Boot, then under the Secure Boot specific menu option, chose the "Add a trusted boot option" or similar (I will try to take a photo of this in the bios later). Navigate to the EFI/ubuntu/ folder, then choose either the shimx64 or grubx64 depending on if you have Secure Boot enabled or disabled respectively. Give the boot option a label, then go back to the boot options tab, and it should now appear in the list. After highlighting it use F6 to bring it up to the top (or at least above Windows Boot Manager). Now save the changes and reboot once more. This should drop you into the Ubuntu Grub boot options.

G Trawo
  • 1,771
  • 13
  • 14
0

Supposing you really installed it correctly. The problem is that your computer doesnt boot on grub, but automatically on windows.

First of all, you need to ensure it! So, how to do it?

On acer there is a key to enter on boot options on startup that you have to press, it can be F2, F9, F10,... Research for your model on google or try those I just cited.

But on BIOS this shortcut key to go to boot options may be deactivated, so look for something that seems "allow boot options" on startup...

Then, press this key on startup, and you will (if you installed ubuntu correctly) see the Ubuntu option, choose it and ubuntu will launch.

If it worked, now you have to solve the grub problem that doesnt boot automatically, then follow this tutorial

Vitor Abella
  • 8,015
  • 16
  • 63
  • 115