ITunes 9.0.2 won't install (Problem with AppleMobileDeviceSupport.pkg)

Question

I am not able to install 9.0.2 on my Mac Pro. I have tracked it down to the "AppleMobileDeviceSupport.pkg", which returns an error when updating the system extension configuration. Is there anybody out there, who already worked around this problem? Find below an excerpt from my install.log containing one install attempt:
Oct 29 21:47:47 graal Installer[13532]: @(#)PROGRAM:Install PROJECT:Install-572
Oct 29 21:47:47 graal Installer[13532]: @(#)PROGRAM:Installer PROJECT:Installer-430.1
Oct 29 21:47:47 graal Installer[13532]: Hardware: MacPro3,1 @ 2.80 GHz (x 8), 12288 MB RAM
Oct 29 21:47:47 graal Installer[13532]: Running OS Build: Mac OS X 10.6.1 (10B504)
Oct 29 21:47:47 graal Installer[13532]: Env: PATH=/usr/bin:/bin:/usr/sbin:/sbin
Oct 29 21:47:47 graal Installer[13532]: Env: TMPDIR=/var/folders/zX/zXSflpub2Ra57+8ZPe5U+++TI/-Tmp-/
Oct 29 21:47:47 graal Installer[13532]: Env: SHELL=/bin/tcsh
Oct 29 21:47:47 graal Installer[13532]: Env: HOME=/Users/oliver
Oct 29 21:47:47 graal Installer[13532]: Env: USER=oliver
Oct 29 21:47:47 graal Installer[13532]: Env: LOGNAME=oliver
Oct 29 21:47:47 graal Installer[13532]: Env: DISPLAY=/tmp/launch-T19Et7/:0
Oct 29 21:47:47 graal Installer[13532]: Env: SSHAUTHSOCK=/tmp/launch-NVXq7a/Listeners
Oct 29 21:47:47 graal Installer[13532]: Env: ApplePubSub_SocketRender=/tmp/launch-0vZ9Ta/Render
Oct 29 21:47:47 graal Installer[13532]: Env: COMMAND_MODE=unix2003
Oct 29 21:47:47 graal Installer[13532]: Env: _CF_USER_TEXTENCODING=0x1F5:0:3
Oct 29 21:47:47 graal Installer[13532]: iTunes Installation Log
Oct 29 21:47:47 graal Installer[13532]: Opened from: /Volumes/iTunes 9.0.2/iTunes.mpkg
Oct 29 21:47:58 graal runner[13536]: Administrator authorization granted.
Oct 29 21:47:58 graal Installer[13532]: =============================================================================== =
Oct 29 21:47:58 graal Installer[13532]: User picked Standard Install
Oct 29 21:47:58 graal Installer[13532]: Choices selected for installation:
Oct 29 21:47:58 graal Installer[13532]: Aktualisieren: "iTunes"
Oct 29 21:47:58 graal Installer[13532]: Aktualisieren: "Apple Mobile Device Support"
Oct 29 21:47:58 graal Installer[13532]: AppleMobileDeviceSupport.pkg : com.apple.pkg.AppleMobileDeviceSupport : 2.3.0.2790000.1835
Oct 29 21:47:58 graal Installer[13532]: Aktualisieren: "iTunes"
Oct 29 21:47:58 graal Installer[13532]: iTunesX.pkg : com.apple.pkg.iTunesX : 9.0.2.2790000.1835
Oct 29 21:47:58 graal Installer[13532]: iTunesAccess.pkg : com.apple.pkg.iTunesAccess : 9.0.2.2790000.1835
Oct 29 21:47:58 graal Installer[13532]: CoreFP.pkg : com.apple.pkg.CoreFP : 1.3.0.2790000.1835
Oct 29 21:47:58 graal Installer[13532]: =============================================================================== =
Oct 29 21:47:58 graal Installer[13532]: It took 0.00 seconds to summarize the package selections.
Oct 29 21:47:58 graal Installer[13532]: -[IFDInstallController(Private) _buildInstallPlan]: location = file://localhost
Oct 29 21:47:58 graal Installer[13532]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/AppleMobi leDeviceSupport.pkg
Oct 29 21:47:58 graal Installer[13532]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/iTunesX.p kg
Oct 29 21:47:58 graal Installer[13532]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/iTunesAcc ess.pkg
Oct 29 21:47:58 graal Installer[13532]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/CoreFP.pk g
Oct 29 21:47:58 graal Installer[13532]: Will use PK session
Oct 29 21:47:58 graal Installer[13532]: Starting installation:
Oct 29 21:47:58 graal Installer[13532]: Configuring volume "Mac Pro"
Oct 29 21:47:58 graal Installer[13532]: Preparing disk for local booted install.
Oct 29 21:47:58 graal Installer[13532]: Free space on "Mac Pro": 151,52 GB (151520894976 bytes).
Oct 29 21:47:58 graal Installer[13532]: Create temporary directory "/var/folders/zX/zXSflpub2Ra57+8ZPe5U+++TI/-Tmp-//Install.13532zXtI0K"
Oct 29 21:47:58 graal Installer[13532]: IFPKInstallElement (4 packages)
Oct 29 21:47:58 graal installd[13539]: PackageKit: ----- Begin install -----
Oct 29 21:47:58 graal installd[13539]: PackageKit: request=PKInstallRequest <4 packages, destination=/>
Oct 29 21:47:58 graal installd[13539]: PackageKit: packages=(\n "PKJaguarPackage <file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/AppleMo bileDeviceSupport.pkg>",\n "PKJaguarPackage <file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/iTunesX .pkg>",\n "PKJaguarPackage <file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/iTunesA ccess.pkg>",\n "PKJaguarPackage <file://localhost/Volumes/iTunes%209.0.2/iTunes.mpkg/Contents/Resources/CoreFP. pkg>"\n)
Oct 29 21:47:58 graal installd[13539]: PackageKit: Extracting /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/AppleMobileDeviceSupport.pkg/Contents/Arch ive.pax.gz (destination=/var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root, uid=0)
Oct 29 21:47:59 graal installd[13539]: PackageKit: Extracting /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/iTunesX.pkg/Contents/Archive.pax.gz (destination=/var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root, uid=0)
Oct 29 21:48:02 graal installd[13539]: PackageKit: Extracting /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/iTunesAccess.pkg/Contents/Archive.pax.gz (destination=/var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root, uid=0)
Oct 29 21:48:03 graal installd[13539]: PackageKit: Extracting /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/CoreFP.pkg/Contents/Archive.pax.gz (destination=/var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root, uid=0)
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preflight" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/AppleMobileDeviceSupport.pkg/Contents/Reso urces
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preflight" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/iTunesX.pkg/Contents/Resources
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preflight" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/iTunesAccess.pkg/Contents/Resources
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preflight" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/CoreFP.pkg/Contents/Resources
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preupgrade" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/AppleMobileDeviceSupport.pkg/Contents/Reso urces
Oct 29 21:48:04 graal installd[13539]: ./preupgrade: launchctl: Error unloading: com.apple.usbmuxd
Oct 29 21:48:04 graal installd[13539]: ./preupgrade: (kernel) Kext com.apple.driver.AppleMobileDevice not found for unload request.
Oct 29 21:48:04 graal installd[13539]: ./preupgrade: Failed to unload com.apple.driver.AppleMobileDevice - (libkern/kext) not found.
Oct 29 21:48:04 graal installd[13539]: ./preupgrade: (kernel) Kext com.apple.driver.AppleUSBEthernetHost not found for unload request.
Oct 29 21:48:04 graal installd[13539]: ./preupgrade: Failed to unload com.apple.driver.AppleUSBEthernetHost - (libkern/kext) not found.
Oct 29 21:48:04 graal installd[13539]: PackageKit: Executing script "./preupgrade" in /Volumes/iTunes 9.0.2/iTunes.mpkg/Contents/Resources/iTunesX.pkg/Contents/Resources
Oct 29 21:48:04 graal installd[13539]: PackageKit: updatedyld_sharedcache -overlay /var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root
Oct 29 21:48:04 graal installd[13539]: PackageKit: Shoving /var/folders/zz/zzzivhrRnAmviuee+++++++++/-Tmp-/PKInstallSandbox-tmp/Root (3 items) to /
Oct 29 21:48:07 graal installd[13539]: PackageKit: kextcache -system-caches
Oct 29 21:48:24 graal installd[13539]: PackageKit: kextcache -update-volume /
Oct 29 21:48:29 graal installd[13539]: kextcache: / locked; waiting for lock.
Oct 29 21:48:44 graal installd[13539]: kextcache: Lock acquired; proceeding.
Oct 29 21:48:44 graal installd[13539]: kextcache: Error populating config file /Volumes/Boot OSX/com.apple.boot.R/Library/Preferences/SystemConfiguration/com.apple.Boot.pli st.
Oct 29 21:48:45: --- last message repeated 1 time ---
Oct 29 21:48:45 graal installd[13539]: kextcache: /: trouble updating one or more helper partitions.
Oct 29 21:48:45 graal installd[13539]: PackageKit: Install Failed: (null)\nError Domain=PKInstallErrorDomain Code=121 UserInfo=0x100116590 "An error occurred while updating system extension information." Underlying Error=(Error Domain=NSPOSIXErrorDomain Code=70 "The operation couldn’t be completed. Stale NFS file handle") {\n NSLocalizedDescription = "An error occurred while updating system extension information.";\n NSUnderlyingError = "Error Domain=NSPOSIXErrorDomain Code=70 \"The operation couldn\U2019t be completed. Stale NFS file handle\"";\n arguments = (\n "-update-volume",\n "/"\n );\n}
Oct 29 21:48:45 graal Installer[13532]: install:didFailWithError:Error Domain=PKInstallErrorDomain Code=121 UserInfo=0x1070174c0 "An error occurred while updating system extension information." Underlying Error=(Error Domain=NSPOSIXErrorDomain Code=70 "Der Vorgang konnte nicht abgeschlossen werden. Abgelaufene NFS-Dateiverknüpfung")
Oct 29 21:48:45 graal Installer[13532]: Install failed: Die Installation ist aufgrund eines Fehlers fehlgeschlagen. Wenden Sie sich an den Hersteller der Software.
Oct 29 21:48:45 graal Installer[13532]: IFDInstallController 1900E820 state = 7
Oct 29 21:48:45 graal Installer[13532]: Displaying 'Install Failed' UI.
Oct 29 21:48:45 graal Installer[13532]: 'Install Failed' UI displayed message:'Die Installation ist aufgrund eines Fehlers fehlgeschlagen. Wenden Sie sich an den Hersteller der Software.'.

Answer 1

No need to apologise.
Okay ... it sounds like they've taken you all the way through the following document:
[Trouble installing iTunes or QuickTime for Windows|http://support.apple.com/kb/HT1926]
... so we'll try something different.
"There is a problem with this Windows Installer Package. A program required for this install to complete could not be run. Contact your support personnel or package vendor."
In recent times, I've seen a couple of cases of that message caused on Vista boxes, when the user account that the person was doing the install from inside lacked correct permissions on their C:\Program Files\ folder. They got similar symptoms to you ... some things installed, some things didn't. (It seems to differ from PC to PC precisely what ends up happening.)
So, go "Start > Computer". In "Computer", open your C drive (or whichever drive your Program files are stored on). Right-click "Program Files", and select "Properties". Click the "Security" tab.
Select the name of your User account in the list. Does that account have full control over the folder? If not, grant yourself full control.
After the Tab has done its thing, okay out, and try another iTunes install. Does it go through properly this time?