From time to time, CPU vendors release updates to microcode that can be loaded into the CPU from the OS.  For x86, we have these updates available in the archive as amd64-microcode and intel-microcode.

Sometimes, these microcode updates have addressed security issues with the CPU.  They almost certainly will again in the future.

We should ensure that all users of Ubuntu on baremetal x86 receive these security updates, and have them applied to the CPU in early boot where at all feasible.

Be...

Crew Demo-2 Departure - https://youtu.be/sl2jo1bSxl8
Crew Demo-2 Return Coast Phase - https://youtu.be/zMsxviPT2Cw
Crew Demo-2 Splashdown - Watching Now

On Saturday, May 30, SpaceX’s Falcon 9 launched Crew Dragon’s second demonstration (Demo-2) mission from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida, and the next day Crew Dragon autonomously docked to the International Space Station. This test flight with NASA astronauts Bob Behnken and Doug Hurley aboard the Dragon spacecraft returned human spaceflight to the United States. SpaceX and NASA are now targeting 7:34 p.m. EDT on Saturday, August 1 for Crew Dragon to autonomously undock from the Space Station, with the two astronauts aboard the spacecraft, and return to Earth. Approximately 19 hours later, after jettisoning its trunk and re-entering Earth’s atmosphere, Dragon will splash down at one of seven targeted water landing sites off the coast of Florida at 2:42 p.m. EDT on Sunday, August 2. The Demo-2 mission is the final major…