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January 2018 Mac Security Update causes Panic at Boot


makk
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Greetings,  Two Issues asking for help with.

 

about two weeks and half ago installed the security update for 2018 January.

 

After the install upon reboot got a boot panic. 

 

CPU fault it seems.

 

Unfortunately I have a laptop and 250Gb SSD drive only.  

 

I had made a high sierra USB installer used that.  

 

Would not boot after install. 

 

So I resorted to an El Capitan USB installer.

 

After that I could not sign into Mac App Store.  

 

I tried many combinations and clover boot loader settings.  

 

Finally out of dumb luck put the El Capitan USB installer back in and booted my drive from that.

 

After that I was able to see the App Store, reinstalled 10.12.6 Sierra.

 

Setting FixLAN previously in Clover, caused the this system not to be able to see App Store.

 

This time setting FixLAN able to see  App Store and download what was previously purchased.

 

What would be the reason for previously having to uncheck the FixLan setting in Clover to be able to see App Store

and then this time have to set it? with 10.12.6 Sierra.

 

While with El Capitan tried both on and off with FixLan?

 

 

Second Issue is the Security Update of January 2018  -- last month.

 

I don't have any files to present because I had to wipe drive twice and I just got back to 10.12.6 Sierra.   I apologize for that..

 

Thank you kindly

 

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