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Previously Downloaded OS X Installers No Longer Work

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Re: Previously Downloaded OS X Installers No Longer Work

#2
Apple has been getting sloppier and sloppier over the past 5 years or so. For instance, even if you have selected "automatically set my timezone based on my location", it won't update unless you actually open the date/time preferences panel every time you change zones.

Re: Previously Downloaded OS X Installers No Longer Work

#4
post #2

Apple has been getting sloppier and sloppier over the past 5 years or so. For instance, even if you have selected "automatically set my timezone based on my location", it won't update unless you actually open the date/time preferences panel every time you change zones.

Really? I flew west coast to east coast yesterday and the time on my machine updated with no manual intervention.

Re: Previously Downloaded OS X Installers No Longer Work

#5
post #2

Apple has been getting sloppier and sloppier over the past 5 years or so. For instance, even if you have selected "automatically set my timezone based on my location", it won't update unless you actually open the date/time preferences panel every time you change zones.

Really? I flew west coast to east coast yesterday and the time on my machine updated with no manual intervention.

Worked fine for me going from NL > UK yesterday. Yosemite.

Re: Previously Downloaded OS X Installers No Longer Work

#9
post #3

It kinda seems like Apple has set out to prove that having a release schedule that is date and feature driven at the same time is not a good idea.

This is not related to their release schedule, it has to do with the certificates used to validate software. You can view an explanation of application level code signing here [0] and the concepts also apply to signing OS images.

[0] https://developer.apple.com/library/mac/documentation/Securi...

Re: Previously Downloaded OS X Installers No Longer Work

#10
I was bitten by this this week. Tried to reuse my installer to install OS X El Capitan on a MBP without redownloading it over my super-fast 2Mbps internet connection.

First, I try to install it by just copying the installer app - "can't be verified".

Then I make a bootable USB stick using DiskMaker X - "can't be verified". I run an integrity check on the installer - all good.

I then try running `/path/to/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/USB-STICK --applicationpath /path/to/Install\ OS\ X\ El\ Capitan.app --nointeraction` - "can't be verified".

Finally I give up and the system is installed via the App Store. The download fails once, it finally completes, and I am left clueless as to why I couldn't reuse the old installer.

An "expired certificate" error message would have saved me many hours. It's unfortunate for the user that Apple puts so little emphasis on letting them be their own tech support.

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