7.2 to 8.0 upgrade issues

[n dhert]

Upgrading a freebsd7.2 (i386) system to 8.0
After
# freebsd-update -r 8.0-RELEASE upgrade
# freebsd-update install
reboot
# freebsd-update install
I did
# portupgrade -af --batch --yes
after 17 hours (mostly during the night..), it finished with
--->  ** Upgrade tasks 425: 199 done, 1 ignored, 3 skipped and 1 failed
(no error messages here..)
Unfortunately, I didn't log the screen output to a file ..
- how can I find out what port failed and which where skipped and ignored?
- is it normal this didn't recompile all 425 ports?
- to rebuild the failed port: is # portupgrade -fr <failed-port>  OK?