by nekton34 » Mon Mar 28, 2016 8:46 pm
I've been running 1.4.2 on OSX 10.11.3 and the 10.11.4 betas for months with no problem but when I did the final 10.11.4 GM upgrade, instantly my 4-disk RAIDZ failed to mount and the zpool command was not found, although at least some (three?) zfs running kexts were found by kextstat.
An upgrade to 1.4.5 seems to have fixed the problem.