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CNET 1101. Thursday November 02, 1999. Create DOS Boot Disk. At C: prompt Format A: /S This will format the disk and copy minimum start-up files You can also copy the three required files. Dos Start-up Disk. Need Three Files IO.SYS MSDOS.SYS COMMAND.COM
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CNET 1101 Thursday November 02, 1999
Create DOS Boot Disk • At C: prompt Format A: /S • This will format the disk and copy minimum start-up files • You can also copy the three required files
Dos Start-up Disk • Need Three Files • IO.SYS • MSDOS.SYS • COMMAND.COM • Only Command.com will show when you run dir
ATTRIB • Shows all files, hidden and non-hidden • Attrib /? • List the possible switches
IO.SYS • Also, IBMBIO.COM • Extends ROM-BIOS Chip • Handle the basic input and output devices • Contains the low level programs that interact directly with devices on the system
MSDOS.SYS Handles disk routines Reads input from keyboard Writes to the monitor Opens and closes files Handles directories Deletes files Contains the DOS disk and device handling programs
COMMAND.COM • The part of the operating system that receives and executes operating system commands. • Dir, Del, Rename, Copy • Type, Cls, Date, Time
DRVSPACE.BIN • May be included and used when a drive is compressed.
Other Files to Include • Format.com* Format.com • Fdisk.exe Scan.exe • Mscdex.exe* Config.sys • Xcopy.exe Autoexec.bat • Deltree.exe Edit.com* • Attrib.exe Defrag.exe • Diskcopy.exe Mem.exe • See Page 1414
CD-ROM Support Method One • Make a DOS start-up disk • Format a: /s • Open the Autoexec.bat and the Config.sys on the C drive and look for CD-ROM Drivers
Autoexec.bat • c:\windows\COMMAND\MSCDEX.EXE /D:MSCD003 /M:12 /L:G /V • @C:\PROGRA~1\NORTON~1\NORTON~2\NAVDX.EXE /Startup • SET CLASSPATH=C:\Program Files\PhotoDeluxe 2.0\AdobeConnectables • @ECHO OFF • SET BLASTER=A220 I5 D1 T4 • PATH C:\PROGRA~1\MICROS~2\OFFICE;c:\windows;c:\windows\COMMAND;C:\IBMTOOLS;c:\program~1\office97\office • LH c:\windows\COMMAND\DOSKEY • CWBMIX.EXE /t=1,1 • SET DMIDIR=C:\DMI
Config.sys • LASTDRIVE=M • DEVICE=C:\windows\HIMEM.SYS /testmem:off • FILES=40 • BUFFERS=50 • DOS=HIGH,UMB • Rem TShoot: DEVICEHIGH=C:\WINDOWS\COMMAND\IBMIDECD.SYS • rem DEVICEHIGH=C:\WINDOWS\COMMAND\IBMIDECD.SYS /D:IBMCD001 • device=c:\windows\cwbinit.exe /A /M • DEVICE=\DEV\HIT-DVD.SYS /D:MSCD003
CD-ROM Support • Copy AUTOEXEC.BAT To A: • Copy CONFIG.SYS A: • REM out all lines except MSCDEX.EXE and CD-ROM Driver • Copy MSCDEX.EXE and Drive to A: • MSCDEX.EXE is an extension that allows CD-ROM to work in DOS. See page 865
Autoexec.bat • C:\windows\command\mscdex.exe /d:mscd003 /l:g • Change to • MSCDEX.EXE /d:mscd003 /L:G
Config.sys Device=C:\dev\ht-DVD.sys /d:mscd003 Change to Device=ht-dvd.sys /d:mscd003
Generic CD-ROM DriverMethod Two • Format disk • Format a: /s • Create Autoexec.bat and Config.sys on the A: Drive • Copy MSCDEX.EXE to A:
Download OAKCDROM.SYS • www.halcyon.com/cerelli/floppies.htm • Copy to A: Drive • In Config.sys • Device=oakcdrom.sys /d:mscd001 • In autoexec.bat • Mscdex.exe /d:mscd001 /l:g • Make sure mscdex.exe and oakcdrom.sys are on floppy
Diagnostics • F1 BIOS • F5 By pass start-up files • Shft F5 Command Prompt • F8 Step by Step confirmation
BIOS Parts • POST • Bootstrap Loader • BIOS • CMOS
Power on Self Test • Processor Disk Controllers • Memory Keyboard • Chipset Disk Drives • Video Adapter Others • Most tests are fatal • Series of beeps indicate error
Bootstrap Loader • Finds the operating system • Loads operating system • Turns control over to O/S
BIOS • Basic Input/Output System • Lowest Level • Connects hardware and O/S • Interface between O/S and hardware • Stored in EEPROM or Flash ROM • Dos Drivers
CMOS • Complementary Metal Oxide Semiconductor • Holds System configuration and setup program • Date, time, passwords, disk drives, APM • {Ctrl-Alt-Del }{Del} {Esc}, {F1}, {F2}, {Ctrl-Esc}, {Alt-Esc}, {Ctrl-Alt-Esc}, {Ctrl-Alt-Enter}, {Ins} or others.
Assignment • Read chapters 4 and 5 • Read http://www.pcguide.com/ref/mbsys/bios/func.htm This page only • http://www.pcguide.com/ref/mbsys/bios/boot_Sequence.htm These four sections
Lab • Create DOS boot disk • Run Attrib to see all the files • Enter start-up by pressing F8, Start up using all options • Take computer apart and reassemble • Leave in power supply, motherboard and processor • Get into BIOS and look around, do not change anything • Go to lab next door and create a DOS boot disk