If you mean an Emergency Repair Disk, then Jisha has answered your
question in this thread.
If you mean a boot diskette that will boot your installed W2k system, then:
- format a diskette (using W2k: this is important)
- from your current system/boot drive, copy to the diskette:
ntdetect.com
ntldr
boot.ini
- test the diskette by bootinjg from it. Put it in a safe place.
If you are booting now via a SCSI drive, one or two other files should
be copied to the diskette also. I forget which. You can find that info
(and the above as well) in Start/Help, (or in old posts in this
newsgroup, or in the Microsoft Knowledgebase at support.microsoft.com)
using Search.
Such a boot diskette will only boot an otherwise working system that for
some reason has lost or corrupted one or more of the named files, or
that has bad info in boot.ini. It does NOT contain the W2k kernel and
will NOT bring up any sort of small or primitive version of W2k. The
rest of W2k's system files, as properly installed, must still be present
and functional on the hard drive.