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Installation from CD Fails (Rolls Back)

 

TOPIC

Q: When running the Amiga Forever 2008 Plus Edition installer from CD, the installation fails, and the installer "rolls back"

 

DISCUSSION

A: This error usually indicates that you have the "Restrict CD-ROM access to locally logged on user only" system security option turned on.

To confirm this condition, launch Registry Editor, expand "HKEY_LOCAL_MACHINE\SOFTWARE", then "Microsoft\WindowsNT\CurrentVersion\Winlogon". Do you have a string named "AllocateCDRoms"? If it shows 1, all installations from CD are likely to fail unless they copy to an intermediate hard disk location first. Many installers do this by default, but the original Amiga Forever 2008 installer was designed to optimize disk use, and therefore avoided the intermediate copy.

To resolve the issue you can choose any one of these methods:

  • Copy the CD content to hard disk, and then install from there
  • Set the AllocateCDRoms value to 0, then reinstall (a reboot may be required if the error persists)
  • Use the installer provided in the downloable CD image, which is newer than the one on the CD, and has the issue resolved

The technical explanation for this problem is that the "Restrict CD-ROM access to locally logged on user only" policy restricts access to the CD to you only, preventing other users from reading files on the CD. Because the Windows Installer service runs as the "Local System" user, the original Amiga Forever 2008 Plus Edition installer cannot copy files from the CD. In a newer version of the installer this has been resolved by means of an automatic temporary hard disk copy.

Related Links

For additional information, please refer to these articles at microsoft.com:

 

Article Information
Article ID: 16-116
Platform: Windows
Products: Amiga Forever 2008
Additional Keywords: roll back, rolls back, rollback, msi
Last Update: 2008-10-25
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