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[–]CompleteDoubterII[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (3 children)

I've tried both of them, but I don't know how to get it to boot from my USB in either option.

[–]CompleteDoubterII[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (2 children)

I found out how. But when I boot from my USB, I get a red box with the text: 'Invalid signature detected. Check secure boot policy in Setup.' I don't know what to do with the secure boot policy.

[–][deleted] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

So are you trying to install Qubes now, or are you still trying to run memtest86? For the memtest, a different bootable Linux distro might be better. I don't know if Qubes has this memtest thing as an option you can boot into.

I think you need to edit a bios setting to allow legacy booting or something.

Changing UEFI mode to Legacy mode. Tap away at the esc key as soon as you press the power button to enter the Start-up Menu and then select the Bios Menu ( f10 ). Under the System Configuration tab, expand the Boot Options Menu. You need to set Secure Boot to Disabled and Legacy Devices to Enabled.

Here's some Qubes uefi docs: https://www.qubes-os.org/doc/uefi-troubleshooting/#accessing-installer-rescue-mode-on-uefi

In UEFI mode installer do not have boot menu, but starts directly the installation wizard. To get into Rescue mode, you need to switch to tty2 (Ctrl+Alt+F2) and then execute:....

[–]CompleteDoubterII[S] 3 insightful - 1 fun3 insightful - 0 fun4 insightful - 1 fun -  (0 children)

Still trying to run memtest86. Didn't you say I should boot from the flash drive to boot into memtest86? Thanks for the docs, I'll read into them sometime.