How can I add new binaries to the mfsroot image?

[Peter Steele]

>You wouldn't have to do so - you could just run a shell script from
sysinstall and do what you want.

That brings me back to my original problem. Yes, I can run a shell
script from sysinstall, but gmirror isn't available in mfsroot, and
adding gmirror to mfsroot isn't straightforward because it needs shared
libraries. I think the best approach to use may very well to have a
custom boot that mounts root from an NFS disk. Then I can run whatever
commands I need without having to actually add anything to mfsroot...