Did you make an emergency boot disk when you originally installed 98?
If so, you can boot from it and do a "sys c:"command. that will put the required files on the hard drive to allow you to at least boot in command line.
If you tried sys with a DOS6.22 you may be running into an issue with different fdisk programs, where 98 can handle more than a 2.1gb drive while DOS is limited to 2.1.
Boot with your DOS 6.22 and run fdisk and see what it reports, especially on the primary partition.
Ed Fair
Give the wrong symptoms, get the wrong solutions.