track failed to verify — disk won’t hold data

can’t get enough sync — cannot format disk

can’t find sector 0 after track format — disk may be bad

sector number never found on a track — disk is going bad

unable to seek to correct track on disk — disk may be going bad

unable to correctly adjust disk speed

tried to read 2nd side on a 1-sided drive

unable to initialize disk interface — check cables to disk drive

track 0 detect doesn’t change — are you sure there’s a disk there?

step handshake failed — disk drive may need calibration

write underrun occurred — disk speed may need adjustment

bad data mark bit slip nibbles — disk is damaged

bad data mark checksum — disk has been damaged

couldn’t find a data mark header — disk is damaged

bad address mark bit slip nibbles — disk is damaged

address mark checksum didn’t check — disk is going bad

read verify compare failed — disk won’t hold its data

couldn’t find valid address mark on disk — bad disk

couldn’t find disk data in 200 tries — bad disk

read or write requested for an off-line drive

drive not installed





write permissions are incorrect

bad master directory block

during rename the old entry was deleted but could not be restored

volume in question belongs to an external file system

not a correct diskette (signature bytes are wrong)

no such drive (tried to mount a bad drive num)

drive volume already on-line at MountVol

permission error; access denied to file/folder

volume not on line (was Ejected)

problem with getting file position

file reference number error

problem with parameter list sent to file system

file already open with write permission

file/folder of that name already exists

file is busy (or folder still contains files)

volume is locked

file is locked

diskette is write protected

file/folder not found

too many files open

memory full (open) or file won’t fit (load)

tried to position to before start of file

end of file

file not open

bad name (possibly too long, bad characters, etc.)

input/output error

no such volume

disk is full

directory is full









driver not opened

IO call aborted by KillIO

DrvrInstall couldn’t find driver in resources

tried to remove an open driver

problem while closing

problem while opening

empty unit accessed

bad unit number used

problem writing

problem reading

problem with status call

problem with control call













access denied

total pathname length is too long

no debugger installed to handle debugger command

cannot write directory on this type of disk

unsupported function

unknown problem

unimplemented core routine

core routine number out of range

invalid queue element

queue element not found during deletion