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Question: High Sierra Login Loop Back

After upgrade to HighSiera, I can`t login on my account user, after type password and click on login button the macbook come back to login screen.


Erro on /var/log/system.log

com.apple.xpc.launchd[1] (com.apple.xpc.launchd.daemon.pid.SecurityAgent.522): Failed to bootstrap path: path = /System/Library/Frameworks/Security.Framework/Versions/A/XPCServices/XPCKeychai nSandboxCheck.xpc, error = 1: Operation not permitted


Any Ideas?

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Nov 11, 2017 8:17 AM in response to vitorvitinho In response to vitorvitinho

Do a backup, preferable 2 separate ones on 2 drives. Boot to the Recovery Volume (command - R) and select Recovery Volume. Run Disk Utility and select First Aid. Then re-install the OS.


OS X Recovery


OS X Recovery (2)

Nov 11, 2017 8:17 AM

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Nov 15, 2017 7:26 AM in response to vitorvitinho In response to vitorvitinho

I know a lot of people have run into this problem. I too had it occur. One of our guys here at the office guessed, correctly, that Centrify might be the problem. If you use Centrify, then here's what we did, which essentially uninstalls centrify. After you get past the login then the new centrify compatible with high sierra can be installed.


I am assuming these commands came from centrify.


Boot into single user mode (Command-S) and once you are at the terminal, run the following:


1. # mount -uw

2. # adleave -f

3. # /usr/local/share/centrifydc/bin/uninstall.sh

4. # mv /var/db/auth.db /var/db/auth.db.bak

5. Reboot your Mac

6. Login using local administrator account


NOTE - #rm /var/db/.AppleSetupDone may be needed between step 4-5


In my case, I ended up with keychain problems and a loop about repairing applications, which I am still working with Apple support to resolve, but at least it is not a reformat disk next step, which Apple suggested.


Good luck!

Nov 15, 2017 7:26 AM

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Question: High Sierra Login Loop Back