/var full when upgrading to 9.2.1.6

I am getting this error when upgrading from V9.2.1.6 to V9.2.1.7. The installation of course fails.
I have upgraded many times without problem so this was a surprise

I know there are numerous threads on this matter. I have looked at each one to glean some hope and learn to fix this myself. No luck thus far.

I did run:
df and got a 1% usage on /var which means low usage??
/dev shows 100%
/devfs shows 100%
/procfs shows 100%


I was not sure how to debug from here. Can anyone help.

I know you...

/var full when upgrading to 9.2.1.6