IBM L40 SX Quick Reference page 109

PS/2 Model L40 SX Quick Reference
Formatting Diskettes
A.1.3 Formatting Diskettes
A diskette must be formatted to prepare it for use. Your operating system
manual describes the commands for formatting diskettes. When using
commands that format a diskette before writing (for example, the DOS
command DISKCOPY), be sure the target diskette has the appropriate storage
capacity.
1MB Diskettes must be formatted to 720KB. You can do this with either a
720KB or 1.44MB diskette drive. When you use a 1.44MB diskette drive, be
sure to specify a format of 720KB; otherwise the diskette will be
formatted to 1.44MB with unpredictable results.
2MB Diskettes must be formatted to 1.44MB. To do this, you must use a
1.44MB diskette drive.
¦ Copyright IBM Corp. 1991
A.1.3 - 1