AT&T 6300 Programmer's Manual page 681

CODE
NUMBER
72
74
75
76
Error Codes
MESSAGE
Disk media error
Occurs when the FDC controller detects a
hardware or media fault. This usually indi-
cates damaged media. Copy any existing files
to a new disk and reformat the damaged disk.
FORMAT will flag the bad tracks and place
them in a file "badtrack. " The remainder of
the disk is now usable.
Rename across disks
An attempt was made to rename a file to a
new name that was declared to be on a disk
other than the disk specified for the old name.
Tp.e renaming operation is not performed.
Path/file access error
During an OPEN, MKDIR, 9HDIR or
RMDIR operation, MS-DOS was unable to
make a correct Path to File connection. The
operation is not completed.
Path not found
During an OPEN, MKDIR, CHDIR, or
RMDIR operation, MS-DOS was unable to
find the path spe~ified. The operation is not
completed.
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