Hi folks,
just for information.
I did an Update to Zimbra 9.0.0 P13 this morning.
OS is Ubuntu 14.04.6 LTS (GNU/Linux 3.13.0-170-generic x86_64)
To be honest, I expected similar problems like reported here ( viewtopic.php?f=13&t=69414 ) with Zimbra 8.8.15 P20 und Ubuntu 14.04 LTS.
But there are no issues.
So my guess is that Ubuntu 14.04 LTS is not generally a problem now...
Maybe P20 is (partly) buggy?!
Regards
Joerg