System information

Table 1-1. (continued)
Message Meaning
Bdos Err On d: Bad Sector
This message appears when CP/M finds no disk in the drive, when the disk is
improperly formatted, when the drive latch is open, or when power to the drive is
off. Check for one of these situations and try again. This could also indicate a
hardware problem or a worn or improperly formatted disk. Press TC to terminate
the program and return to CP/M, or press RETURN to ignore the error.
Bdos Err On d: File R/O
You tried to erase, rename, or set file attributes on a Read-Only file. The file
should first be set to Read-Write (R[W) with the command: STAT filespec $R/W.
Bdos Err On d: R/O
Drive has been assigned Read-Only status with a STAT command, or the disk in
the drive has been changed without being initialized with a TC. CP/M terminates
the current program as soon as you press any key.
Bdos Err on d: Select
CP/M received a command line specifying a nonexistent drive. CP/M terminates
the current program as soon as you press any key. Press RETURN or CTRL-C to
recover.
Break "x" at c
ED. "x" is one of the symbols described below and c is the command letter being
executed when the error occurred.
# Search failure. ED cannot find the string specified in an F, S, or N
command.
? Unrecognized command letter c. ED does not recognize the indicated
command letter, or an E, H, Q, or 0 command is not alone on its command
line.
Appendix I : CP/M Error Messages CP/M Operating System Manual
I-3