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I created a bootable drive with ubuntu version 20.04.3 LTS using Rufus to a 32 gigabite flash drive. When I restart the computer and open the boot menu, it doesn't show the drive or the option to boot ubuntu. Does anybody know why or how I could fix this? Currently I'm using Windows 11.

agi gun
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  • At boot try pressing F8, F9 or F12 to boot the USB. – C.S.Cameron Feb 15 '22 at 16:50
  • Do you know if your BIOS is UEFI or EFI? Also, is secure boot or fast boot disabled? Also, what computer are you using? Like, model, brand and architecture (ex. X86_64 or ARM) To ask a good question, I would recommend adding the things I asked for in your answer so that users can better answer your question. – Logan Feb 15 '22 at 18:24

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(considering that rufus not failed) In BIOS you need to:

  1. disable "Secure Boot" or "Fast Boot"(depends on your system, what is present)

  2. enable "Booting from USB"

  3. In case you had previously selected "Legacy Mode" then check if you have "UEFI with CSM", "UEFI hybrid" or just "CSM" and select it instead. If you had just "UEFI" than it's ok.

    [number 3.] depends on how is your current installation done.

---end of BIOS part---

Need to mention if you disable "Secure Boot" you might encounter Blue Screen and something like BitLocker need to recover you key. This means your Windows disk is ecrypted. Enable "Secure Boot" to be able to boot to Windows and there disable BitLocker. This page might be helpful.

For first time installing recommend this part of help.ubuntu.com.

Also you might consider reading this question.

daru
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