Below are distribution notes from past experiences. If you have additional notes that you would like to add for other distributions, please forward them to me.
Red Hat 8.0 requires changes only if you log in via ssh to your computer after the first stage restore. If, say, you perform the second state restore over ssh. If so, make the following changes:
In the file save.metadata, add the kerberos libraries to the first stage backup.
crunch kerberos usr/kerberos/lib/
In the file restore.metadata, there is a loop that builds several directories. First, add these two directory names to the list: /var/empty/sshd and /var/lock/subsys. As Red Hat 8.0 defaults to ext3fs, it requires an inital RAM disk at boot time. So make sure initrd is in the list. Then, if it isn't already there, add the -p switch to the makdir command.
The directory /var/lock/subsys is owned by group lock, so change its owner.
chroot $target /bin/chown root:lock /var/lock
Finally, usr/lib/libcrypto* has gone away, so you can remove that from the line that crunches usr/lib.
This distribution is the one I used originally on my test computer. I have had no problems with it.
This version seems to require libcrack (in /usr/lib) and its attendant files in order to authenticate users. So in save.metadata, add to the line that saves /usr/lib the following: /usr/lib/*crack* and enable that line.