Verification failed: (0x1A) Security Violation from 22.04.1 live USB
https://askubuntu.com/questions/1456891/verification-failed-0x1a-security-violation-from-22-04-1-live-usb
WEBFeb 27, 2023 · Disable Secure Boot and leave it that way. Disable Secure Boot, boot the 22.04.1 ISO, install, update, and then enable Secure Boot again. Sadly, both solutions require that you disable Secure Boot at least temporarily. If that's not possible, you will have to install Ubuntu from a sufficiently new ISO.
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