IMac 12,1 Lion hangs on shutdown

Question

We have recently brought a number of iMacs (12,1) and i have created a lion (10.7.5) image, but we are having a problem where they keep hanging on shutdown, everything appears to shut down but the mac doesn't power off it just sits on a white screen.

Answer 1

Thank you for your response, i haven't been able to replicate the fault again on the mid 2011 iMacs but i have had the problem on a number of mid 2007 iMacs. Please find attached log.
23/10/2012 08:02:03.152 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:03:18.000 kernel: smb_iod_reconnect: Reconnected share SHARED with server taz
23/10/2012 08:03:18.000 kernel: smb_iod_reconnect: Reconnected share IT-TECHNICIANS with server taz
23/10/2012 08:07:06.412 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:12:09.677 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:14:50.726 sandboxd: ([101]) applepushservice(101) deny network-outbound 172.30.1.22:8080
23/10/2012 08:14:50.727 applepushserviced: Got connection error Error Domain=kCFErrorDomainCFNetwork Code=310 "There was a problem communicating with the secure web proxy server (HTTPS)." UserInfo=0x7fca4be72110 {NSErrorFailingURLStringKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSErrorFailingURLKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSLocalizedRecoverySuggestion=To change your proxy settings, open Network preferences, click Advanced, and then click Proxies. For help with this problem, contact your system administrator., NSLocalizedDescription=There was a problem communicating with the secure web proxy server (HTTPS).}
23/10/2012 08:14:50.727 applepushserviced: Failed to get client cert on attempt 71, will retry in 900 seconds
23/10/2012 08:17:12.984 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:22:16.091 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:27:19.417 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:29:51.876 sandboxd: ([101]) applepushservice(101) deny network-outbound 172.30.1.22:8080
23/10/2012 08:29:51.877 applepushserviced: Got connection error Error Domain=kCFErrorDomainCFNetwork Code=310 "There was a problem communicating with the secure web proxy server (HTTPS)." UserInfo=0x7fca4be3e4d0 {NSErrorFailingURLStringKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSErrorFailingURLKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSLocalizedRecoverySuggestion=To change your proxy settings, open Network preferences, click Advanced, and then click Proxies. For help with this problem, contact your system administrator., NSLocalizedDescription=There was a problem communicating with the secure web proxy server (HTTPS).}
23/10/2012 08:29:51.877 applepushserviced: Failed to get client cert on attempt 72, will retry in 900 seconds
23/10/2012 08:31:18.000 kernel: smb_iod_reconnect: Reconnected share SHARED with server taz
23/10/2012 08:31:18.000 kernel: smb_iod_reconnect: Reconnected share IT-TECHNICIANS with server taz
23/10/2012 08:32:22.529 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:37:25.653 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:38:39.555 ARDAgent: Did not find entry for client 00:25:00:ef:86:43
23/10/2012 08:39:04.067 Remote Desktop: SendMessageToAgentWithReply: gCmdReplyPtr->cmdResult contained error code -6405
23/10/2012 08:40:06.535 com.apple.SecurityServer: Failed to authorize right 'system.install.app-store-software' by client '/System/Library/PrivateFrameworks/PackageKit.framework/Versions/A/Resources/in stalld' [3301] for authorization created by '/System/Library/CoreServices/Software Update.app' [3296]
23/10/2012 08:40:06.535 com.apple.SecurityServer: Failed to authorize right 'system.install.software' by client '/System/Library/PrivateFrameworks/PackageKit.framework/Versions/A/Resources/in stalld' [3301] for authorization created by '/System/Library/CoreServices/Software Update.app' [3296]
23/10/2012 08:40:11.319 diskmanagementd: DM ->T-[DMToolBootPreference recoveryPartitionInfoForVolume:what:dict:]: inHostDiskUDS=0x10ae08c20=disk0s3=Macintosh HD inWhatStr=RecoveryInfoBaseSystemVersion
23/10/2012 08:40:11.459 diskmanagementd: DM ..T-[DMToolBootPreference recoveryPartitionInfoForVolume:what:dict:]: did if-needed-best-effort unmount
23/10/2012 08:40:11.459 diskmanagementd: DM <-T-[DMToolBootPreference recoveryPartitionInfoForVolume:what:dict:]: retErr=-69737 outInfoDict=(null)
23/10/2012 08:40:11.520 Software Update: recoverySystemVersion: could not get recovery version information for mount point /: Unable to find boot helper partition. (-69737)
23/10/2012 08:40:11.520 Software Update: Package Authoring: error running volume-check script: TypeError: 'null' is not an object (evaluating 'my.target.recoverySystemVersion.ProductBuildVersion') at x-distribution:///installer-gui-script%5B1%5D/volume-check%5B1%5D/@script
23/10/2012 08:41:32.405 Software Update: Layout still needs update after calling -[WebHTMLView layout].  WebHTMLView or one of its superclasses may have overridden -layout without calling super. Or, something may have dirtied layout in the middle of updating it.  Both are programming errors in Cocoa Autolayout.  The former is pretty likely to arise if some pre-Cocoa Autolayout class had a method called layout, but it should be fixed.
23/10/2012 08:42:28.923 authexec: executing /Library/Frameworks/VirusScanPreferences.framework/Versions/Current/Resources/p refsHelperTool
23/10/2012 08:44:53.064 sandboxd: ([101]) applepushservice(101) deny network-outbound 172.30.1.22:8080
23/10/2012 08:44:53.065 applepushserviced: Got connection error Error Domain=kCFErrorDomainCFNetwork Code=310 "There was a problem communicating with the secure web proxy server (HTTPS)." UserInfo=0x10981b140 {NSErrorFailingURLStringKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSErrorFailingURLKey=https://albert.apple.com/WebObjects/ALUnbrick.woa/wa/deviceActivation?device=Mac OS, NSLocalizedRecoverySuggestion=To change your proxy settings, open Network preferences, click Advanced, and then click Proxies. For help with this problem, contact your system administrator., NSLocalizedDescription=There was a problem communicating with the secure web proxy server (HTTPS).}
23/10/2012 08:44:53.065 applepushserviced: Failed to get client cert on attempt 73, will retry in 900 seconds
23/10/2012 08:46:55.631 ARDAgent: SendPacketToTask error Broken pipe
23/10/2012 08:46:55.631 ARDAgent: Error sending Task Server connection code 2 to admin.
23/10/2012 08:46:59.158 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.159 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.162 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.163 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.165 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.169 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.169 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.171 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.171 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.173 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.180 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.201 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.201 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.202 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.206 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.210 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.214 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.215 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.218 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:46:59.220 Remote Desktop: [Computer initWithDescriptor] CFStringToIPv6Address failed to convert string :: to an IP address.
23/10/2012 08:47:00.477 ARDAgent: MPSignalSemaphore err -29298
23/10/2012 08:47:03.551 ARDAgent: SendPacketToTask error Broken pipe
23/10/2012 08:47:03.552 ARDAgent: Error sending Task Server connection code 2 to admin.
23/10/2012 08:47:12.227 com.apple.launchd.peruser.480586318: ([0x0-0x16016].com.apple.AppleSpell[297]) Exited: Killed: 9
23/10/2012 08:47:12.230 com.apple.launchd.peruser.480586318: (com.apple.mdworker.pool.0[3294]) Exited: Terminated: 15
23/10/2012 08:47:12.276 com.apple.launchd.peruser.480586318: (com.apple.talagent[225]) Exited: Killed: 9
23/10/2012 08:47:12.947 McAfee Reporter: Application is teminating
23/10/2012 08:47:13.571 loginwindow: DEAD_PROCESS: 40 console
23/10/2012 08:47:13.579 mcxalr_agent: Disconnect request received.  Reason: unmanage
23/10/2012 08:47:14.000 kernel: mcxalr{4} Management DISABLED for uid: 480586318
23/10/2012 08:47:14.000 kernel: AFP_VFS afpfs_unmount: /Volumes/MAC Techsupp, flags 0, pid 4235
23/10/2012 08:47:14.000 kernel: AFP_VFS afpfs_unmount: /Volumes/Machine Backups, flags 0, pid 4240
23/10/2012 08:47:14.000 kernel: IOHDIXHDDriveOutKernel::doEjectMedia semaphore_wait_deadline() returned 14
23/10/2012 08:47:14.000 kernel: AFP_VFS afpfs_unmount: /Library/Screen Savers, flags 0, pid 4233
23/10/2012 08:47:14.000 kernel: AFP_VFS afpfs_unmount: /Library/Burton College Desktop, flags 0, pid 4236
23/10/2012 08:47:14.672 shutdown: reboot by ********:
23/10/2012 08:47:14.677 shutdown: SHUTDOWN_TIME: 1350978434 672462
23/10/2012 08:52:07.000 bootlog: BOOT_TIME 1350978727 0