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I have Dell XPS 9500 and I am unable to boot from live-usb created via Rufus (or via regular 7z x ) whatever partition option I choose (MBR/GPT) neither disabling secure boot seem to work. I have an older Manjaro image which works just fine with secure boot turned off. Could you think about any solution to replace existing Manjaro installation with Ubuntu? Thanks.

J-unior
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  • When you attempt to boot the live-usb, does it just straight-up not show up in the boot options? Can you describe what happens when attempting to boot the live-usb? Any error messages? – jitter May 07 '21 at 16:48
  • When I try to boot form UEFI SD explicitly it says something like "no boot device found". If I put UEFI SD up in the hierarchy, it is skipped on boot. – J-unior May 07 '21 at 17:09
  • additionally, you said that you moved it up in the hierachy, but normally I would just change the boot device when booting by pressing "F2" (might be different for you) and then just picking the USB/CD player. Can you try that? – jitter May 07 '21 at 18:02
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    You need to use UEFI/gpt option in Rufus, not BIOS (CSM) and only boot in UEFI mode. With nVidia. If dual booting with Windows. Windows AHCI driver install: https://discourse.ubuntu.com/t/ubuntu-installation-on-computers-with-intel-r-rst-enabled/15347 & How to Install Ubuntu Linux on your Dell PC https://www.dell.com/support/article/us/en/04/sln151664/how-to-install-ubuntu-linux-on-your-dell-pc?lang=en – oldfred May 07 '21 at 18:04
  • I've changes the storage mode to Sata when I've installed Manjaro in the first place. Image is burned with GPT + DD option. Updated BIOS to the latest version, nothing seems to help. The system won't boot from livesd card to start the installation. – J-unior May 07 '21 at 18:42
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    Do you have an UEFI setting for allowing USB boot or full USB support? Is UEFI Secure Boot off, that should not be required, but often makes it easier to install, especially if you need proprietary drivers like the nVidia driver to be installed as part of install or first boot after install. – oldfred May 07 '21 at 19:19
  • Thank you for your help. I have tried tenths of times with secure boot on and off, tried pointing to the bootx64.efi file manually, tried Ubuntu server, Kubuntu, Mint. Nothing boots besides the older Manjaro image. – J-unior May 07 '21 at 22:58
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    If Manjaro boots using GRUB2 you can add the Ubuntu ISO to the boot menu. For general procedure see: https://askubuntu.com/questions/1251729/20-04-booting-iso-from-grub-menu/1251782#1251782 If you need a more detailed answer let me know. – C.S.Cameron May 09 '21 at 03:45
  • Does this answer your question? Why Doesn't a Bootable USB Boot and Bootable USB of Ubuntu Minimal CD – karel Jun 17 '21 at 23:57

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I highly recommend Universal USB Installer instead of Rufus.

I had the same issue with my personal computer, tested many solutions that didn't work, and finally that software solved it.

EDIT: I don't recommend to use Universal USB Installer anymore, here is the reason: USB flash installation medium