Customers cannot boot after install 10.11.1 update
Non of the magic fixes listed on forums so far have helped with booting 10.11.1 on a Samsung 850 EVO 500gb or 250gb 1TB Solid State Drives. Only taking it back to 10.11 or cloning onto a Hard Drive solved the boot issue. This was on iMacs and MacBooks a Mac Mini managed to boot but Applications quit and lagged, failed and became unusable.
I cant believe Apple engineers have not tried replicating this but it was always going to end up with a problem like this because Apple Developers short-sightedness and Apples need to push the latest “Bleeding Edge Update to OSX” and not allow clients to choose a safer previous update has created this trap.
Apple will be very busy at the moment because 10.11 from what is being said in the forums is very disappointing, from simple extensions now stopping the OS from booting (a first in OSX history), too applications that don’t work or seem to be slower than normal.
Part of the problem is due to new Apple-enforced code signature restrictions, making lots of applications not compatible with the OS X 10.11.
Although the restriction is similar, this is not directly related to 10.11’s “System Integrity Protection” (SIP, aka “rootless”)
feature and disabling SIP has no effect. Unless Apple makes the signature restriction optional, it is not clear that some apps in their present form can ever be
made compatible with OS X 10.11.
Also with the latest lag in broadband in Australia because of Netflix being oversold and issues with Apple update servers it has come to my attention that some larger downloads are corrupting.
We can offer you any OSX 10.6 10.7 10.8 10.9 10.10 and 10.11 on a USB drive so you can install without waiting an hour + for download