Booting Issue in Ubuntu 18.04 external hard drive set up

by Kaustubh M Harapanahalli   Last Updated July 12, 2019 11:02 AM - source

I have installed Ubuntu 18.04.2 on an external hard drive. The details of the hard drive are: Storage: 500 GB Type: SSD Make: SanDisk

The installation happened seamlessly, but after I remove the live USB and restart the system, I am facing an issue.

I am seeing the Ubuntu drive option while I hit on the OS loader option (F12 key) and after I select to boot Ubuntu, its booting Windows 10 instead of Ubuntu. Here's the video of what is happening.

Here, when I open the drive, I see a EFI boot loader menu showing up on File Manager. I feel that there is some error with respect to EFI boot.

I am not able to figure out the fix for it. If someone can help me out with this, it would be a great help.

Thanks in advance.

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