Toshiba T2150CD Series Manual page 53

1. Insert a blank, formatted disk into drive A:
Type sys a: and press Enter.
2.
MS-DOS copies the system files to the disk.
You can also create a system disk by adding /S to the MS-DOS FORMAT command when
you format a disk. To use a system disk, insert it in drive A: and turn on the computer.
You must format a hard disk or a diskette as a system disk in order to automatically start or
restart the system from that disk. Hard disks are almost always formatted as system disks.
You cannot format a RAMDRIVE as a system disk.
Non-System Disks
Non-system disks do not contain the MS-DOS hidden system files, so you cannot start the
computer with them. Store data or make backups of current files using non-system disks.
MS-DOS displays the following message if you try to start the system with a non-system disk:
Non-system disk or disk error
Replace and press any key
To recover from this error message, you can start the computer from the hard disk simply by
removing the diskette and pressing any key. If you need to start from the diskette drive,
remove the non-system disk, insert a system disk and press any key.
Protecting Your Data on Diskette
Some diskettes such as those that contain your application programs and operating system
should be kept in a safe place and not used on a regular basis.
Program Diskettes
Program diskettes are usually non-system diskettes that contain the files required to run your
applications. Diskettes you use to run software should be write-protected to guard against
accidental loss of data.
Most software manuals instruct you to copy the program diskettes to other diskettes and
store the original program diskettes in a safe place.
If you install your application on diskettes, be aware that some software programs create
temporary files on these diskettes. If you run this type of software, do not write protect these
diskettes.
Backup Data Diskettes