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Re: XPS 13 9370 Ubuntu Unsecure Boot

Secure Boot has worked since 12.04.5 by dropping the GRUB 2 bootloader as a default tool on systems with Secure Boot enabled and generating an Ubuntu-specific signing key to use with UEFI. 

https://lists.ubuntu.com/archives/ubuntu-devel/2012-June/035445.html

The UEFI specification is not the problem for Linux. The problem is Microsoft's other requirement for any Windows certified client: the system must support Secure Booting. This hardened boot means that 'all firmware and software in the boot process must be signed by a trusted Certificate Authority."

Ubuntu 18.04 LTS will be supported for 5 years until April 2023.

Clean install starting with 18.04.2  hasn't been a problem for me.

Download the latest LTS version of Ubuntu, for desktop PCs and laptops. LTS stands for long-term support — which means five years, until April 2023, of free security and maintenance updates, guaranteed.

 

http://releases.ubuntu.com/18.04/

Ubuntu 18.04.2 LTS (Bionic Beaver)

http://releases.ubuntu.com/18.04/ubuntu-18.04.2-desktop-amd64.iso

 

Ubuntu 18.04 LTS release notes


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