sysinstall install.cfg disk unmount failure

[Don]

I've scripted sysinstall to do a complete system installation, compiled a
custom PXE kernel and mfsroot image, and gotten almost all of my disk
issues straightened out.

My last issue is this:
After the system installation completes and the system reboots, I get
errors about the file systems not being unmounted cleanly.

If I remove "shutdown" from the end of my install.cfg script and replace
it with "command=/sbin/reboot \ system" then I get an error in sysinstall
about system command failing but the system reboots and the file systems
are clean.

Does anyone have any ideas where I might be screwing up this time?

-Don