IBM ThinkPad 310E User Manual page 173

System Security
C-8
IBM ThinkPad 310E/310ED: User's Guide
Disabled Disables the hard disk drive.
System Boot Drive
This parameter determines which drive the computer boots from
when you turn it on. The following table lists the possible settings.
Setting Description
Drive A Computer boots from diskette drive A. If there is no system
Then C disk in drive A, the computer boots from hard disk C. If the
(default) hard disk is a non-system disk, an error message appears.
Drive A Computer boots from diskette drive A. If no diskette is
present or if the diskette in diskette drive A is a non-system
disk, an error message appears.
Drive C Computer boots from hard disk C. If hard disk C is not a
system disk, an error message appears.
Drive C Computer boots from hard disk C. If hard disk C is not a
Then A system disk, the computer boots from diskette drive A. If no
diskette is present or if the diskette in diskette drive A is a
non-system disk, an error message appears.
CD-ROM Bootable
When enabled, the computer checks the CD-ROM drive first and
boots from there, if possible, before checking the System Boot Drive
control setting. The default setting is Disabled.
There are two image types/formats for CD-ROMs -- diskette drive
and hard disk:
Image Type Upon Boot-up...
Diskette Drive CD-ROM drive becomes drive A and the diskette drive
becomes drive B. The hard disk drive remains drive C.
Hard Disk CD-ROM drive becomes drive C and the hard disk drive
becomes drive D. The diskette drive remains drive A.