Upgrading from an earlier SCO OpenServer Release 5 system

This release offers the Upgrade installation type for previous SCO OpenServer Release 5 releases. This option removes all earlier versions of SCO products whose functionality has been incorporated into the current release of SCO OpenServer and installs the new versions. It does not remove other files on the system.

Before choosing the Upgrade installation type, read this entire section and ``About the Upgrade installation type'' in Chapter 2 of the SCO OpenServer Handbook.

To upgrade from SCO Open Desktop® Release 3.0 or 2.0 to the current release of SCO OpenServer, see ``Upgrading from an SCO Open Desktop system'' and ``Choosing an upgrade path'' in the SCO OpenServer Handbook.

• Back up your current system and verify that the backup was successful. For more information, see ``Running unscheduled filesystem backups'' in the System Administration Guide.

• Run fsck(ADM) with the -ofull option, and shut the system down cleanly.

We recommend that you remove any third-party drivers from your system before upgrading to the current release of SCO OpenServer, then restore the drivers after you have rebooted successfully following the upgrade. This is the safest approach because, if a third-party driver from your previous SCO system is not compatible with the current release of SCO OpenServer, the kernel (/stand/unix) might not link at the end of installation.

If the kernel relink fails following an Upgrade installation, perform a Fresh installation and restore your user data from backups.

See also:

• Basic system requirements for upgrades

• SCO DCE Development System upgrade

• Upgrades and VisionFS

• Compaq EFS upgrade

• SCO IPX/SPX upgrade

• Upgrading SCO ARCserve/Open Lite