Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== IBM PC DOS 7.1 ====== Taken from https://forums.virtualbox.org/viewtopic.php?f=4&t=80531 ==== PC-DOS 7.0/2000 Boot Floppy ==== <code> Get a PC-DOS 7.0/2000 boot floppy and leave just the following files: ATTRIB.EXE COMMAND.COM IBMBIO.COM IBMDOS.COM FDISK.COM FORMAT.COM </code> ==== Boot, Partition and Format ==== Boot from the PC-DOS 7.0/2000 floppy and partition your drive as needed. Make sure you 'sys' the drive using //format /s// //Warning: I found that formatting a FAT32 partition was not supported and had to do that on another system, though the formatted partition did actually show up fine after being created on another system.// ==== Add PC-DOS 7.1 System Updates ==== Get a copy of the newer PC-DOS 7.1 files (they are under 1MB in total) and copy them to a floppy disk under a PCDOS71 folder. === Removing PC-DOS 7.0/2000 Files === <code> Delete the 7.0/2000 system files (IBMBIO.COM, IBMDOS.COM, COMMAND.COM) from the formatted hard drive: A:\>ATTRIB -S -H -R C: A:\>DEL C:\*.* </code> === Install PC-DOS 7.1 Files === <code> Copy the 7.1 system files to the C: drive. //Make sure you do it in this order!// A:\>CD PCDOS71 A:\PCDOS71>COPY IBMBIO.COM C: 1 file(s) copied A:\PCDOS71>COPY IBMDOS.COM C: 1 file(s) copied A:\PCDOS71>COPY COMMAND.COM C: 1 file(s) copied </code> === Add a DOS Folder === <code> Create a DOS directory on C: and copy the 7.1 files into it: A:\PCDOS71>MKDIR C:\DOS A:\PCDOS71>COPY *.* C:\DOS ... XCOPY.EXE 43 file(s) copied </code> You should now have a formatted PC-DOS 7.1 partition with just the new PC-DOS 7.1 system files in C:\DOS. blog/pcdos71.txt Last modified: 2021/05/19 13:55by john