Amstrad DDI-1 manual Drive Drive disc missing, Failed to load boot sector

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Typing R for retry causes the BIOS to repeat the operation.

Typing I for ignore causes the BIOS to continue as if the problem had not occured.

Typing C for cancel causes the BIOS to abandon the operation. This will often result in a BDOS error message.

After the user has typed R, I or C the cursor is turned off. The AMSTRAD BIOS messages are as follows:

Drive <DRIVE>: disc missing

This message is produced when the BIOS attempts to access a drive that does not, or does not appear to, have a disc inserted.

Failed to load boot sector

This message is produced during a cold boot (invoked by 1 C PM) when the boot sector is not read correctly or if all the bytes in the boot sector have the same value.

Failed to load CP/M

This message is produced during a warm boot when a sector of the CCP or BDOS is not read correctly or if all the bytes in the first CCP sector have the same value.

Drive <DRIVE>: disc is write protected

This message is produced when the BIOS attempts to write to a disc that is write- protected. If the user wishes to write on this disc then the user should remove the disc, write enable it, re-insert it into the drive and then type R for retry.

Drive <DRIVE>: read fail

This message is produced when a hardware error has been reported whilst reading from the disc. It may also be caused by trying to read from a disc with the wrong format, for example: trying to boot from a DATA ONLY format disc.

Drive <DRIVE>: write fail

This message is produced when a hardware error has been reported whilst writing to the disc.

In the event of a read or write fail the user is recommended to remove and re-insert the disc then type R This may help in case the disc was badly positioned or may shift any fluff or what-not adhering to the head. The importance of back-ups cannot be overstressed.

AMSTRAD Disc Drive & Interface DDI-1 Manual

Chapter 5.4

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Contents Page Amstrad Disc Drive & Interface DDI-1 Amstrad Contents Contents Page Foundations 1 Setting Up Connecting the Mains LeadConnecting the DDI-1 to the Computer Computer Interface Unit Main Disc Drive Drive a Computer Foundations 2 About Discs Write ProtectionOpen Closed When Your Disc Is Indicator Lamp Eject ButtonRun rolcave Drive a disc missing Retry, Ignore or Cancel?Foundations Loading Software/Games ROLCAVE. not foundDrive a read fail Retry, Ignore or Cancel? Bad commandSyntax error Type mismatchFoundations Introducing Amsdos and CP/M Disc Drive B disc missing Retry, Ignore or CancelLoad filename Tape.inCpm First Steps Using The CP/M DiscStoring Data Onto Disc CLS? Saving a Program in Memory onto Disc Back to AmsdosBeware EXAMPLE.BAS CatalogLoading From Disc Copying Programs From Disc to Cassette Copying Programs From Disc to DiscCopying Programs From Cassette to Disc Copying Using the CP/M System Disc Copying Using DisccopyWriting track 0 to Copying Using CopydiscCopying started Reading track 0 to Do you want to copy another disc Y/NDiscchk Checking DiscsAborting ChkdiscInstallation Amstrad Disc Drive & Interface DDI-1 Manual Backup Master Disc Making Working DiscsTurnkey Amstrad Basic discs Working SYSTEM/UTILITY discBasic only disc DISCCOPY.COMTurnkey Basic onto your Working disc Turnkey Basic using disc suppliedTurnkey CP/M Discs Creating a Turnkey CP/M System discAmbiguous filename Confirm individual files Y/N ? Configuring a CP/M ProgramConfiguring the Output from the package Payroll Configuring the Input to the packageStarting a Turnkey CP/M Package Autostarting a Turnkey CP/M Package Amsdos Primer IntroductionConstruction of Filenames Disc DirectoryAmsdos filenames and filetypes Save PROG.BAS a Save Bprog .BAS Amsdos headersFilenames on two drives Saving variables and performing a Screen Dump Examples of Using Amsdos Commands in a programWild cards BERT.BAS FRED1.BAS FRED2.BAS FRED3.BAK FRED3.BAS FINISH.BASNeat CloseoutWhile not EOF Reference guide to Amsdos commandsPre-empting a Garbage Collection Wend CloseinSave OPENOUT, Print #9, Write #9, List #9, Closeout Summary of Basic commandsSummary of Amsdos external commands CATDisc CPMDIR DISC.INTape ERAREN TAPE.INAmsdos files with headers File Copying proceduresCopying Files Ascii filesFile has a header Amstrad Reference guide to Amsdos Error Messages Drive Drive read fail Drive Drive disc missingDrive Drive disc is write protected Drive Drive write failCP/M system tracks CP/M PrimerOperating with CP/M Logging in a disc Configuration SectorConsole control codes DIR command Direct Console CommandsSwitching default drives ERA commandType command Transient commandsREN command Peripheral ManagementWhole disc copiers and checkers File and disc copyingSingle file copying Cassette filesSystem Management StatStat SECRET.BAS $DIR SetupDo you want to update your system disc Y/N Is this correct Y/NFormat Disc GenerationAmsdos Format D Format I FormatMovcpm BootgenAdvanced programming SysgenAmstrad Disc Drive & Interface DDI-1 Manual What is Logo Introduction to LogoDr. Logo Getting StartedTo square Repeat 4 fd 60 rt 90 end Procedures with parametersRepeat 4 fd 60 rt To squareanysize side repeat 4 fd side rt 90 endCs squareanysize 100 rt 45 squareanysize Using Variables to remember valuesEditing programs and procedures To triangle Repeat 3 fd edge rt 120 endOperating hints Summary of Dr. Logo primitivesChar Word and List ProcessingAscii CountFput EmptypFirst ListArithmetic Operations Logical Operations Not ?= Logo LogoProcedures VariablesSetsplit EditingText Screen ShowType CleanGraphic Screen DotWindow PalSetpal Turtle Graphics WrapSeth SetpcErn Workspace ManagementSetpos NodesGprop RecycleGlist PlistSave Disc Files DirLoad KEYBOARD, Joystick buttonp?make key rc Paddle?paddle 0 ?keyEnt SoundEnv ReleaseRun LabelRepeat StopPause ErrorCatch ThrowSystem Properties Technical information for the user Firmware HeadersChanging Discs Store requirementsAmsdos messages Error MessagesBios messages Failed to load boot sector Disc Organisation Common to ALL FormatsReturn Parameters Jump Block Interception by AmsdosJump Block Re-Interception by the User 137 #BC9B Intercepted Firmware Calls132 #BC8C 133 #BC8F 134 #BC92 135 #BC95 #BC98 Page Appendix Glossary of Terms CP/M Dr.Logo Primitives TPA Amstrad Disc Drive & Interface DDI-1 Manual Appendix Term Limitations of Remedies Amstrad Disc Drive & Interface DDI-1 Manual Appendix Index ERA Setpos