Debian Installer Buster Alpha 5 Has Initial UEFI Secure Boot Support

Written by Michael Larabel in Debian on 2 February 2019 at 07:02 AM EST. Add A Comment
The fifth alpha of the Debian Installer for the upcoming Debian 10.0 "Buster" release is now available for testing. What makes this new release particularly important to test is that it features the initial UEFI Secure Boot support.

Debian 9 "Stretch" didn't get UEFI Secure Boot support in time while Debian developers have been working to ensure this year's release, Debian 10.0 Buster, will support this security standard found in PC hardware of recent years. The Secure Boot support isn't complete in this Debian Installer Buster Alpha 5 release, but it's getting close and in need of more widespread testing. Debian Buster will default to installing the signed packages on x86_64 hardware.

This new alpha of the Debian Installer also adds Zstd compression support to its Btrfs support, updates to the Linux 4.19 kernel, run-time optimizations for debootstrap, Xen PVH guest support within its GRUB2 bootloader, ReiserFS support has been dropped from Partconf, re-enabling of TLSv1.0 support for WPA-Supplicant, new ARM board entries, and various other improvements.

More details on the Debian Installer Buster Alpha 5 release via debian-boot. Those wanting to test out Debian's long overdue Secure Boot support can learn more details via this call for testing.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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