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macOS 10.15.5 Update

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This was a clean and easy update on both my 2012 MacBook Pro and my PowerMac G5 Red. I think that it updated the firmware on the MacBook Pro. On the G5, two reboots, used Clover r5118, and I had to manually select the Install macOS from SSD the first reboot. So far I haven't run into any issues.

I backed up just prior to updating, but I won't do any CCC backups until Catalina 10.15.5 is properly supported, as per their website's warning.
 
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Updated "softly" to Clover 5118 (Hackintool!) and then go up to 10.15.5...
Bildschirmfoto 2020-05-28 um 23.54.32.png
 
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Update did not work for me. Received a "OSstatus error -37" message. Tried changing my SMBIOS and my regular BIOS settings. Third install attempt saw the macOS updater completely obliterate the macOS System partition, leaving the Data partition as an orphan (there is currently no way to "salvage" an orphaned partition since firmlink documentation is absent from Apple). Unable to boot the original drive after initiating the update, and was forced to completely wipe the drive.

Using Opencore 0.5.8 with a 9900K and ASRock Z390 Phantom Gaming ITX.

Glad ya'll are having good luck!

---------------

Fixed the issue! Make sure that all symlinks in your /Library and /Users folders are perpetually active even in Recovery mode.

In my case, my /Users/Shared symlink pointed to a DMG file that mounts on login. Since your user is not "logged in" while in Recovery mode or while Updating, there is no path for that symlink. Hence the "OSstatus error -37" message.

I copied all contents to a separate internal hard drive that's always plugged in, recreated a blank /Users/Shared folder, and symlink'd each item that usually mounts within /Users/Shared. Boom, update worked like a charm! Totally hands-off installation. Seamless.
 
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Success with 10900K and Asus ROG Strix Z490-E Gaming:

1590719103256.png
 
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As pointed out in another thread on here, anyone using Carbon Copy Cloner, and possibly SuperDuper - but I haven't checked SD, please read the WARNING on their website and if you want to make a fresh bootable clone download the new beta.

CCC WARNING

Thanks. Moderators: Can you pin this warning to the top of the thread until it's fixed?
 
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