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2 votes

Verification failed: (0x1A) Security Violation while installing Ubuntu

This is an excerpt from this answer that I just wrote. What happened here is that Canonical updated their UEFI Secure Boot signing key and your system's Secure Boot Advanced Targeting variable. In ...
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1 vote
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converting MBR disk with UEFI boot to GPT

A preliminary note: I'm the author of GPT fdisk (gdisk), so I understand what it does pretty well. First, when doing any sort of maintenance at this level, backups are critical! Before you do anything ...
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1 vote
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Cannot boot Linux with Windows (nothing works)

Your Boot Repair output indicates EFI-mode installs of both Windows and Ubuntu, although there are hints that /dev/sda may have been used for a BIOS-mode install of Windows in the past, and a BIOS-...
  • 43.2k
1 vote
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Install windows from Ubuntu, could not prepare computer to boot

Figured it out. Had to reformat my hard drive. "oh no, my files!" Well, I was able to recover the lost partition because I made sure that the windows partitions would not encroach on my ...
1 vote
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Signing Virtualbox modules with EFI Secure Boot enabled

First, the issue isn't with EFI; it's with Secure Boot, which is just one specific UEFI feature. Secure Boot can be enabled or disabled and isn't even present on some (mostly older) EFI/UEFI ...
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