Ubuntu 12.10 "Quantal Quetzal" was the first release of Canonical's popular distribution to include a workaround for Secure Boot, but now--with the release yesterday of Ubuntu 12.04.2 LTS--the "Precise Pangolin" Long Term Support version popular with business users has gained Secure Boot support as well.
"To help support a broader range of hardware, the 12.04.2 release adds an updated kernel and X stack for new installations on x86 architectures, and matches the ability of 12.10 to install on systems using UEFI firmware with Secure Boot enabled," the official release announcement explains.
Based on the 22.214.171.124 extended upstream stable release of the Linux kernel, the software also includes the workaround designed to help prevent the bricking problem that has been uncovered in some Samsung laptops.
Support through 2017
Offered with support through April 2017, Ubuntu Linux 12.04.2 is now available as a free download from the project site.
Users of Ubuntu 10.04 and 11.10 will be offered an automatic upgrade to 12.04.2 via the software's included Update Manager, but more upgrade details are available online.