This key is available in the Ubuntu shim package, IIRC or you can get it in my rEFInd. Note that once you re-activate Secure Boot, you'll need to manually register Canonical's/Ubuntu's public key in your Machine Owner Key (MOK) list. This is most easily done by disabling Secure Boot, installing Ubuntu, installing the updated shim, and then re-enabling Secure Boot. You can use the more up-to-date shim version 0.2 with Ubuntu.The drawback is that you'll lose the security benefits that Secure Boot provides - but this is no worse than running Windows on a BIOS-based computer. Note that this will not prevent you from booting Windows. This is usually the easiest approach to take. You can disable Secure Boot on the computer in question.If you're running into such problems, I have three suggestions: I'm not sure if this is because of configuration errors, because of the fact that Ubuntu is still using the old shim version 0.1, or because of bugs in some computers' Secure Boot implementations. In practice, there seem to be a lot of problems with that. In theory, Ubuntu 12.04.2 (but not 12.04), 12.10, and 13.04 all support Secure Boot via a program called shim, and their installers should boot with Secure Boot active.
Usb secure boot how to#
In Legacy mode, the CD ROM works fine.Īs I have to start in Uefi secure boot mode to install *buntu 13.04 alongside Windows 8 in Uefi secure boot mode: How to burn a bootable live CD in Uefi secure boot mode? Either with Win 8 or Win XP or Mac OS 10.4.11 or a Live CD in legacy mode? When I start with Uefi, but secure boot disabled, there is even not Error message. The error message is:ĬDRom has been blocked by the current security policy Īs Canonical had not a Uefi licence for *buntu.
Usb secure boot iso#
I clicked on the ISO image (also in Windows 8 UEFI secure boot mode) "burn to CD ROM" as described f.ex. Then, I tried it with a CD ROM, because some people belives that some old and hidden stuff on the USB stick could disturb the boot processus. The stick starts only in legacy boot, but not in Uefi mode. I used Lili (LinuxLive USB Creator) to create a bootable USB Stick based on the 64bit Lubuntu 13.04 iso with Windows 8 Uefi secure boot.
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