Wednesday, 26 February 2014

Fix for "None of the selected updates could be saved" on Mac OS X software update

Saw this error today when running the Apple Software Update process on an old MacBook running 10.6.5.   The text of the message indicated that the digital signatures on the downloaded packages were invalid.  Manually downloading the 10.6.8 combo updater didn't fix it.

Turns out the date was set to the year 2001.  Fixing the date & time on the Mac cured the problem.

Presumably the digital signatures have "valid from" and "valid to" dates: common practice, well intentioned, but unhelpful for software updates.