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Title
Mac OS X system only bootable in single user mode after installing QAS -
Description
After installing QAS or updating Mac OS X the system now hangs while booting and can only be booted into single user mode.
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Cause
Some combinations of Mac OS X and QAS versions cause problems at boot time. Usually this is caused by using an older build of QAS that has not been updated for the version of Mac OS X you are running. We recommend disabling QAS in single user mode, rebooting, then upgrading to the most recent version of QAS. -
Resolution
To unconfigure QAS while in single user mode, you can perform the following steps:
- “Type "/sbin/mount -uw /" (This mounts the volume "/" with read/write access.)”
- Unconfigure the directory plugin by running:
# /opt/quest/bin/vastool unconfigure odmodule
Note: Older versions of QAS do not use odmodule. If the odmodule is not configured you will need to use this command instead: /opt/quest/bin/vastool unconfigure ds - Unconfigure PAM
# /opt/quest/bin/vastool unconfigure pam
Check /etc/pam.d/authorization and login and screensaver for pam_vas.so module which should no longer be there. - sudo /bin/launchctl stop com.quest.vasd
With QAS unconfigured you should now be able to reboot the system, log in with a local admin account, and update QAS to the most recent version which can be found here:
https://support.quest.com/kb/SOL116643
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Additional Information
To check if the odmodule is configured you can use the following steps:
# cd /Library/Preferences/OpenDirectory/Configurations
# plutil -convert xml1 Search.plist
# grep VAS Search.plist
If you find the following line then odmodule is configured for QAS:/VAS