Module Name:	src
Committed By:	fvdl
Date:		Sun May  2 15:26:23 UTC 1999

Modified Files:
	src/distrib/utils/sysinst/arch/i386: md.c
Log Message:
Since our mbr code and bootselector are only 512 bytes long, only
read/write that much. Previously, too much was written back to
disk (although it didn't do any harm because of the sequence
of execution).

Also, upgrade the MBR type from 386bsd -> NetBSD if needed during
an upgrade operation.