Installation guide

EMC NetWorker Release 8.1 SP1 Installation Guide 149
Downgrade to a Previous Release
Scanning the AFTD and Data Domain devices
Use the scanner -i command to re-create media database entries for the read-only device
of each AFTD and Data Domain device. The UNIX man page and the
NetWorker 8.1
Command Reference Guide
describe how to use the scanner command.
Downgrading a NetWorker storage node or client
Perform the following tasks to downgrade the NetWorker software:
◆ “Uninstalling the NetWorker software” on page 149
◆ “Deleting the NetWorker tmp directory:” on page 149
◆ “Installing the NetWorker software” on page 150
◆ “UNIX only, retaining start-up script customizations” on page 150

A NetWorker 8.1 server does not support NetWorker 7.6.x storage nodes. Downgrade the
NetWorker server before downgrading any storage nodes in the data zone.
Uninstalling the NetWorker software
Uninstall the NetWorker software. Remove any NetWorker module software including
NetWorker Module for Microsoft Applications and NetWorker Module for Database
Applications on the host before removing NetWorker and Console server software. The
appropriate module installation guide describes how to remove the module software.
The following sections describe how to uninstall the NetWorker software:
◆ “Uninstalling the NetWorker and Console server software on AIX” on page 72
◆ “Uninstalling the NetWorker software on HP-UX” on page 79
◆ “Uninstalling NetWorker and Console server software on Linux” on page 91
◆ “Uninstalling the NetWorker software on Mac OS-X” on page 98
◆ “Uninstalling the NetWorker and Console server on Solaris” on page 108
◆ “Uninstalling the NetWorker and Console server on Windows” on page 125

If the NetWorker host is also the Console server, the Console server database must return
to a point-in-time before the NetWorker 8.1 software update. “Downgrading the Console
server” on page 151 describes how to downgrade the Console server.
Deleting the NetWorker tmp directory:
Delete the NetWorker tmp directory. The default location is different on Windows and UNIX
hosts:
◆ On Windows: C:\Program Files\Legato\nsr\tmp or C:\Program Files\EMC
NetWorker\nsr\tmp
◆ On UNIX: /nsr/tmp