DOS 3.2 added support for 720kb floppy disks and added disk format autodetection. It should detect the disk format correctly. Type FORMAT A: (If the disk drive is A).On DOS 4.0 and later is possible to force a 720kb format using the FORMAT command with the /F:720 parameter.It formats correctly a 720kb disk on 720kb drive. This bug only occurs when 1.44MB floppy is used.This affects all DOS versions from 3.30 (this was the first version with 1.44MB floppy disk support) to MS-DOS 6.22. The DOS FORMAT utility, throws an error when formatting a 3.5 720KB floppy on a 1.44MB disk drive. In this way you easily can transfer files from/to MMC and external PC. When you execute this file you are able to connect to LPT port of MMC (the orange/yellow one) to an external PC that have Total Commander or Windows Commander, by means of an paralell cable. You may also copy the utility file called "lptdos.exe" into the root of your new HDD. Type in the command "ver" in order to check "Caldera DR DOS ver.6" is on bussines.Īfter that you may copy all files from your old drive (using also an external PC but notice to unhide all files from your old HDD befor you copy it) onto your new 2.5 HDD. Then take the 2.5' HDD and insert it into an PC (using a 2.5 to 3.5 IDE adapter), boot the PC from DR DOS system diskette, make a format "c:\sys" or simply "format c:" and than transfer the DR DOS system files with an "sys:c" command.Ī succesfull operation may make the PC to boot from HDD. Caldera DR DOS ver.6, but not the later ver.7 of DR DOS). You may first make an system floppy disk with the correct version of DR DOS (as it is on your MMC hard disk, ex. I had trouble opening the HDby USB, so I think it failed.
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