How to Determine the ARC Path (155222)
The information in this article applies to:
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Server 4.0
This article was previously published under Q155222 SUMMARY
When you troubleshoot some issues where a Windows NT boot disk is needed,
you may need the ARC path for the Boot.ini file. However, it may not be
obvious, or the machine administrator may not remember the partition or
root directory the operating system was installed in. This information can
be recovered from the Emergency Repair Disk.
MORE INFORMATION
The Setup.log file is located on the Emergency Repair Disk. It has the
system, hidden, and read-only attributes. If this file is opened in a text
editor, the first few lines will provide information about how to build the
ARC path to the operating system. The following is an excerpt from a
typical Setup.log file.
[Paths]
TargetDirectory = "\WINNT"
TargetDevice = "\Device\Harddisk0\partition2"
SystemPartitionDirectory = "\"
SystemPartition = "\Device\Harddisk0\partition1"
A typical ARC path might be:
multi(0)disk(0)rdisk(0)partition(2)\WINNT="My Server 4.0"
The rdisk parameter is defined as Harddisk<X> on the TargetDevice line,
where <X> is a variable that represents the drive ordinal. Note that the
rdisk parameter is not used when SCSI replaces multi in the ARC path.
The partition parameter is defined as partition<X> on the TargetDevice
line, where <X> is a variable that represents the partition ordinal. Note
also that SystemPartition refers to the partition where NTLDR is stored.
Use TargetDevice for the partition ordinal value.
The TargetDirectory line defines the system root directory, which is the
part of the ARC path immediately following the partition number.
For more information, please see the following articles in the Microsoft
Knowledge Base:
ARTICLE-ID: 119467
TITLE : Creating a Boot Disk for an NTFS or FAT Partition
ARTICLE-ID: 102873
TITLE : Boot.ini and ARC Path Naming Conventions and Usage
ARTICLE-ID: 130921
TITLE : Creating an FT Boot Disk With SCSI() and Multi() Identifiers
ARTICLE-ID: 139333
TITLE : Creating Alternate Boot Selections on AXP Machines
Modification Type: | Major | Last Reviewed: | 8/9/2001 |
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Keywords: | kbhowto kbnetwork KB155222 |
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