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- Summary of steps for getting MSDOS onto a hard disc.
-
- 1.) This step applies only if you have on old PCEmulator,
- e.g. V1.20, and a V1.33 upgrade disc - unless Paul has
- upgraded your V1.20 disc to V1.33. [I think that you had
- probably done this for me, Paul, but I didn't know.]
- (a) Read "ReadMe2" on the V1.33 disc. (b) Run "MakePC" on
- the V1.33 disc. (This copies the file !PC.Rom from the 1.20
- disc to the 1.33 disc. Although the desktop displays this as
- a "text" file, I reckon that in fact it is the emulator
- itself and that all the other files are concerned with
- preparing the Arc to run the Emulator.)
-
- 2.) Read "ReadMe" on V1.33 but don't take too much notice of
- it - it confused me a lot!
-
- 3.) Examine the files !PC.GenBoot.!Config and
- !PC.GenBoot.!Modules. If you have more than 1 Mb of RAM, it
- may be worth changing some of the "Y"s to "N"s in !Config.
- When I first tried it, without any changes, my screen went
- blank because my Taxan 795 monitor requires the VIDC
- enhancer and the VIDCmodes software installed in order to
- synchronize when not in modes 18-21. With a 4 Mb machine, I
- decided to make all the responses "N" and everything seemed
- OK.
-
- 4.) If you have a SCSI hard disc (as I have), run !SCSIDisk.
- This renames !PC.SCSIRun2 to !PC.!Run2 and !PC.!Run2 to
- !PC.!ADSF[sic]Run2. That is, it makes !Run2 the file that
- defines where the MSDOS partition is to be placed - on a
- SCSI hard disc not on an ADFS one. !SCSIDisk then creates a
- file "PC.Drive_C" on the SCSI disc of the size you request
- (1 to 32Mb). This file can be *TYPEd from the Arc command
- line - but don't do it until everything is complete because
- its contents misled me! The screen then displays
- instructions for running two MSDOS commands: FDISK and
- HDINSTAL. It also displays the injunction "Press ESC to
- stop; Press RETURN to continue".
-
- 5.) If you press RETURN, the instructions are cleared from
- the screen; the PCEmulator is loaded and you are invited to
- put the MSDOS boot disk into "Drive A" (Drive 0). Doing so,
- and pressing RETURN, loads MSDOS which asks for date and
- time - but pressing RETURN in response to each request
- supplies the information from the system clock. When the
- "A>" prompt appears, you need to carry out the instructions
- that were recently wiped off the screen: Type "FDISK", then
- "1" to create a DOS partition, then "Y" to assign all of
- file Drive_C to DOS; then "HDINSTAL" which formats the hard
- disc and transfers the MSDOS system files from the floppy
- MSDOS boot disc to the hard disc.
-
- 6.) If you press ESC (at the "ESC to stop, RETURN to
- continue" injunction) and need to run !SCSIDisk again,
- beware that this will re-rename the !Run2 files. I avoided
- this by "REMming" the *rename statements in
- !SCSIDisk.!RunImage. (This is a BASIC program from which it
- would appear that the procedure for installing MSDOS on an
- ADFS hard disc would be the same without the complication of
- renaming the !Run2 files.)
-
- 7.) Once MSDOS is safely on the hard disc, the !PC
- application can be transferred from the V1.33 disk to the PC
- directory on the hard disk.
-
- 8.) One last complication for me was that when I typed
- "HDINSTAL" I got the quaint message "insert new diskette in
- drive C" and, on pressing RETURN, "drive not ready - format
- failure". Eventually, after many hours and several phone
- calls, the explanation turned out to be that I have two
- external 5-1/4" drives and MSDOS was seeing the second of
- these as Drive C and the SCSI hard disc as Drive D. To avoid
- amending HDINSTAL (which is a simple batch file) I told
- RiscOS that it had only two floppy drives (*CONFIGURE
- FLOPPIES 2, followed by Ctrl+Break) and all went smoothly.
- Subsequently I reconfigured to three floppies and now MSDOS
- wakes up with a "D>" prompt ready to run from the hard disc.
- The most useful tool for finding out what MSDOS thinks it
- has is to type CHKDSK A:, CHKDSK B: etc.
-
- 9.) Finally, in RiscOS, LOCK the "Drive_C" file. I'm
- astonished that this is not done by the PCEmulator prgrams.
- Without it, a careless click in RiscOS might destroy all
- your MSDOS files!
-
- Bill Mapleson
-