Order of booting for dual system setup
Order of booting for dual system setup
Computer: I recently purchased an Acer 1660G desktop for gaming purposes. It came with Windows 10 on its single SSD, and I split it into two partitions—Ubuntu is on the second one. The installation worked smoothly, but when I tried to set Ubuntu as the default boot partition, the BIOS didn’t recognize it. Even after changing the boot order in efibootmgr within Ubuntu, the system would revert back to Windows first upon reboot. I’m looking for a way to make Ubuntu the primary boot option so I can restart remotely and load it again. Any suggestions?
GRUB was likely installed alongside Ubuntu during setup. You're probably trying to configure your BIOS to start from GRUB and let it select the operating system automatically. By default, GRUB boots to the last OS you loaded, but you can adjust this by modifying /etc/default/grub and running "sudo update-grub". The GRUB_DEFAULT setting determines which option appears first in GRUB, and it will launch after a timeout if you don't interact with the system. For more details on setting up GRUB, see the provided link.
Bit of a delay on my response. I haven't been working on the server lately. Yes, GRUB was installed with Ubuntu server, but that is not the boot menu I was speaking of. The boot menu I was talking about was the one you can load into while your computer is loading up before you load into an OS. From there you can choose what you want to boot into, i.e. Windows, Ubuntu, a bootable usb, etc. Specifically for me it's the ESC key to get there. GRUB is not booting first. Windows always seems to boot first. GRUB_DEFAULT is set to Ubuntu server but that doesn't really matter since GRUB isn't the default boot option through the BIOS. It doesn't show up in my BIOS so I can set to be first in the boot order.