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I have installed ubuntu on a external drive on a ssd connected with usb and I don't have an efi partition.

I am in efi mode and I have disable secure boot and I have set as first option to boot from usb. But my pc doesn't boot from external drive (installed with ubuntu) and it boots to windows (internal ssd) directly.

If I abort the boot pressing ESC and then change boot option (with F9), I go to windows boot manager and from there I can select ubuntu.

But what could the easiest way to make my pc boots by default on ubuntu and not have to press ESC and then F9 to manually select ubuntu?

Thanks for any help.

Giorgos Krux
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1 Answers1

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If you haven't used it yet, I suggest you use the Gparted tool. You can use it to select the boot disk.

How to install the Gparted tool is explained in this video. https://www.youtube.com/watch?v=vlVXPtJ20hA

Here is how to change the boot disk on a similar question about Gparted. Make boot partition using GParted in Boot-Repair

Good luck to you:)

Alper.d
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