verification failed 0x1a security violation

I thought that it may have been due to a BIOS upgrade via Dell, but I have done the same upgrades on other similar PCs and the problem isn't repeating itself - they all work okay. When I attempt the installation, it comes up with a blue screen with the text: Verification failed: (0x1A) Security Violation The strange thing is, I have used the same ISO image (verified SHA256) on this PC previously and it worked fine with no issues.įrom what I have researched, it seems to be an issue with the BIOS / UEFI key, but I am not sure what has changed since the last install of Mint. Why didn't Debian copy that magical file, mm圆4.I have a problem installing Linux Mint on my Dell OptiPlex 7060 SFF PC (i7-8700) from either DVD or USB.

Done the same with the live debian iso: it boots and bootctl confirms Secure Boot is on. Should something be copied from LUbuntu to Debian? Lubuntu shows for a few seconds a display that says 'MOK Manager'. Worked and confirmed.īut there is a difference between LUbuntu and MX at boot. Tried booting LUbuntu instead, in the physical machine, from a USB drive made with Rufus. Both USB drives and the physical CD-RW worked and it was confirmed with bootctl that Secure Boot was on. Tried booting a VM configured with Secure Boot. Pressed Enter again on the CD-RW entry and it loaded Windows.

Tried writing the iso to a CD-RW with Windows, with Verify on, and attempting to boot from the internal CD-RW drive by pressing F12 and Enter on the CD-RW entry: it just flashed the display once. Tried plain cp with another USB flash drive. So what is going on here? If I have Secure Boot enabled how does MX boot? If not, why doesn't debian boot?Ĭp debian-10.2.0-amd64-netinst.iso /dev/sdbĭiff temp.iso debian-10.2.0-amd64-netinst.isoīinary files temp.iso and debian-10.2.0-amd64-netinst.iso differ One curiosity: MX indeed does not do Secure Boot as I just saw by typing bootctl in a live MX run.

Going to the EFI setup, there is nothing like 'enable or disable Secure Boot', there is only this menu entry:įorce System to Setup Mode - clear all Secure Boot variables (PK, KEK, db, dbx, and dbt). Following your instructions to set it up manually in a VM booted from the live debian iso while the USB drive made by Rufus is mounted (made in 'ISO Image Mode', not 'DD Image Mode'):Ĭp /run/live/medium/EFI/boot/grub圆4.efi. Its 'DD Image Mode' produced the same error too.

Created a bootable USB drive with plain cp (in a VM running the live debian iso):Ĭp debian-live-10.2.0-amd64-xfce.iso /dev/sdaįailed to open /EFI/BOOT/mm圆4.efi - Not foundīack to Rufus.

Verification failed 0x1a security violation