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Legato NetWorker, Release 7.0
Disaster Recovery Guide
Chapter 4: Windows Disaster Recovery
4
57
Repairing a Windows NT 4.0 Operating System Installation
This section explains how to use NetWorker software to create a Windows NT
4.0 Emergency Repair Disk (ERD), and how to use the ERD to repair a
damaged Windows NT 4.0 operating system installation.
To repair a Windows NT 4.0 operating system installation requires:
• Windows NT 4.0 Setup Disks (three disks)
• Windows NT 4.0 installation CD-ROM (same version that was installed
prior to the disaster)
• Windows NT 4.0 Service Pack (same level that was installed prior to the
disaster)
• One of the following:
– A current Windows NT 4.0 ERD for the computer you are recovering
– The NetWorker backup or clone volume that contains the most recent
REPAIRDISK save set for the computer you are recovering
• The Administrator account password for the computer you are
recovering (required only if you are repairing the registry or system state)
Repairing Windows NT 4.0
If you do not have a current ERD, see “Creating an ERD from the REPAIRDISK
Save Set” on page 57.
If you have a current ERD, see “How to Use the ERD to Repair the Windows
NT 4.0 Installation” on page 59.
Creating an ERD from the REPAIRDISK Save Set
If you do not have a current ERD for the computer you are recovering, you can
create one using either the NetWorker User program or the
<NetWorker_install_path>\bin\recover.exe command.
Because the operating system of the computer you are recovering needs repair,
to create an ERD you must use a different NetWorker client computer to
perform a directed recovery of the REPAIRDISK save set. Before you begin the
directed recovery, ensure that:
• The computer you will use to recover the REPAIRDISK save set is a
functional NetWorker for Windows client, connected to the NetWorker
server you will use for the recovery.
• The Client resource for the computer you are recovering includes in its
Remote Access List the NetWorker server you will use for the recovery.