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+--- Thread: Security update for ext SSD (/showthread.php?tid=229567)
Security update for ext SSD - Dik2 - 06-18-2019
Trying to install Security Update 10.6.3. Mid 2011 iMac 27" running High Sierra on a Thunderbolt SSD. It goes through the usual restart process but Software update keeps saying it is needed.
Re: Security update for ext SSD - Forrest - 06-18-2019
Security Update 10.6.3 was released in 2010 - won't run on High Sierra
Re: Security update for ext SSD - Dik2 - 06-18-2019
Sorry, it's 2019-003 10.13.6
It comes up from Software Update when booted from SSD.
Re: Security update for ext SSD - Filliam H. Muffman - 06-18-2019
Do you have the most recent firmware installed?
Re: Security update for ext SSD - Forrest - 06-18-2019
I can't get Security Update 2019-003 10.13.6 installed on my Mac Mini either. I think this is a result of uninstalling McAfee Total Protection awhile ago - I need to press the power button to shut off my computer.
Re: Security update for ext SSD - Sarcany - 06-18-2019
I think your boot vol needs to be APFS to install the latest HS and Mojave updates. Did you clone to that external drive? Possible you set it up as HFS/GUID?
Re: Security update for ext SSD - Dik2 - 06-18-2019
Format: APFS
Re: Security update for ext SSD - Sarcany - 06-18-2019
After the update, do you have an OS X Install Data folder at the root of the drive?
You should see that if the update failed to install properly.
It's been my experience that it takes multiple attempts to install on about one in four Macs, leaving that folder behind.
...Have you tried manually installing the update?
https://support.apple.com/kb/DL2004?locale=en_US
Re: Security update for ext SSD - Dik2 - 06-19-2019
Just tried manual install, no joy.