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Error Message List
File is linked to an invalid cluster.
File is linked to a free cluster.
File is cross-linked.
File is linked to a reserved cluster.
File has too few clusters.
File has extra clusters.
Lost clusters found in chains.
FAT1, FAT2 have different value.
File is cross-linked at FAT No. [x].
File is Bad File Name.
Check the Surface of the Hard Disk
This checks the surface of the hard disk for damaged clusters on the partition by using the IDE read/verify
commands.
Use this command to recover files that have been written to bad sectors on the hard disk.
However, since the files have been recovered from bad clusters, parts of the files may not be usable.
Operation Procedure
1.
Boot up DOS.
Refer to "Booting Up Service DOS".
2.
Enter the command and run chdd.
Enter "chdd" after the "A:\" prompt in the HyperTerminal window, and then press the Enter key.
The chdd command checks the surface of the disk three times.
The surface of the disk is checked and the results of the check are displayed.
Error Message
[A:\] chdd
Explanation
The file is linked to a cluster that does not exist.
The file is linked to a free cluster.
The same cluster is linked to several files.
The file is linked to a reserved cluster.
The file is smaller than its registered size.
The file is larger than its registered size.
Parts of the file are linked to reserved clusters.
The contents of FAT1 and FAT2 are different.
One cluster [x] is used by several files.
The file name includes illegal characters.
Chapter 3 Field Service
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