Add missing pre.d directory to let user know they can use such scripts
Preserve console directievs from kernelargs into installed system
Retry umount during image2disk, if processes have the filesystem busy.
Fix DNS behavior during post phase of installtodisk
Invoke confignet properly during firstboot to set up additional interfaces.
Have sshd run during the install from '/sysroot', for convenience
Fix some cosmetic error output for setupssh
Have imgutil complete the capture process, splitting work
between target and repository.
Provide hook through kcmdline to induce installtodisk.
Have installimage reboot system cleanly when done.
Have new /etc/confluent in cloned system.
Hook for post scripts to execute.
