Software Update Error

Product Name: iMac11,2

Processor Speed: 3.06 GHz

Memory: 4 GB

Storage capacity: 500.11 GB

OS version: Mac OS X 10.6.8 (10K549)

Application version: Software Update 4.0.6 (271)

Hello,

When installing and updating certain packages, an error is produced. For example updating iTunes with Software Update produces this error while 'Running package scripts...':

The update “iTunes” can’t be installed.

An unexpected error occurred.

Related lines of the message log:

02/03/2015 11:07:53 installd[621] PackageKit: ----- Begin install -----

02/03/2015 11:08:16 installd[621] PackageKit: Install Failed: PKG: pre-install scripts for "com.apple.pkg.iTunesX"

Error Domain=PKInstallErrorDomain Code=112 UserInfo=0x10648cc10 "An error occurred while running scripts from the package “iTunesX.pkg”." {

NSFilePath = preinstall;

NSLocalizedDescription = "An error occurred while running scripts from the package \U201ciTunesX.pkg\U201d.";

NSURL = "iTunesX.pkg -- file://localhost/Library/Updates/zzzz031-07682/031-07682.English.dist";

PKInstallPackageIdentifier = "com.apple.pkg.iTunesX";

}

02/03/2015 11:08:17 com.apple.ReportCrash.Root[656] 2015-03-02 11:08:17.061 ReportCrash[656:2a03] Saved crash report for installd[655] version ??? (???) to /Library/Logs/DiagnosticReports/installd_2015-03-02-110817_localhost.crash

02/03/2015 11:08:17 Software Update[617] Error: An error occurred while running scripts from the package “iTunesX.pkg”. (PKInstallErrorDomain code 112)

Troubleshooting steps I have taken:

Run as root in safe mode

Fix permissions

Verify disk

Any insight into this, or indeed into Error Code 112 appreciate.

Cheers.