If you're running HJ < v300, and you have 2 drives in your empeg, and you have both /dev/hda4 and /dev/hdc4 set up to mount on /programs0 and /programs1 then you will encounter a buffer overrun when remounting ro from kftpd or khttpd. You can work around it by using the serial (or telnet) prompt to run the binary 'ro' (and 'rop') and not using kftpd or khttpd to 'ro'. Simpler and better is to upgrade HJ to the latest and greatest.