On 7 Feb 98 at 22:21, Wayne&Tammy wrote: > When the machine boots, it gives me a "missing operating system" error. > > Yes, I made sure the drive worked fine in the original machine, and yes, > it was set as the active partition. > > When I boot from a floppy, and check the disk, it is there with all the > appropriate files (msdos.sys, io.sys, command.com, etc..). I had a problem similar to this a while back. On a machine running OSR2, I chose "boot to old OS" from the boot menu to get into DOS 6.22. The fix was to boot from an OSR2 boot floppy, and use SYS to re-write the boot files on the hard drive, ignoring warnings about them being a different version. I don't quite understand what 6.22 thinks it's doing, overwriting them on boot, but apparently it does. David G PCBUILD: http://nospin.com or [log in to unmask]