North Star DIMENSION Service Manual page 62

TROUBLESHOOTING
Boot Problems (cont.)
Symptom Explanation Solution
(continued) 6. If "drive not ready" errors appear , ensure that the
drive is connected properly. If errors still appear,
replace the drive.
The system To understand
boots and the possible
users are able causes, you
to sign on , need to
but understand
workstations the boot
hang after process after
the DOS a password is
banner entered.
appears on
the screen.
7. If "sector not found" errors appear , reformat the
drive using the DISKTOOL utility on Service Disk
2, and run SETUP again . If errors appear during
this process , replace the drive.
o If drive D contains both AUTOEXEC.BAT and
COMMAND.COM files, DOS loads COMMAND.COM
from drive D and executes the AUTOEXEC.BAT file
from drive D. If drive D also contains a
CONFIG.SYS file, DOS reads and executes it before
executing the AUTOEXEC.BAT file.
o If drive D does not contain both AUTOEXEC.BAT
and COMMAND.COM files, DOS selects drive C, loads
COMMAND.COM from there , and executes
CONFIG. SYS and AUTOEXEC.BAT files from C if it
finds them there.
o If the COMMAND.COM file on drive D is
contaminated, a banner appears and the central
module hangs . The COMMAND.COM file in drive C
is write-protected, but the file in drive D is not. It
is very easy to over-write this file when copying an
application from drive C to drive D.
2-16 DIMENSION Service Manual