I noticed the same errors about adding certificates/pem files when upgrading to 11.10 Oneiric from 11.04
Ubuntu on Virtualbox 4.1
Installed java sdk on Ubuntu 10.04, using aptitude as: sudo aptitude install openjdk-6-jdk
Upgrade to 11.10 from Update manager UI I did not run pending 11.04 updates before starting the upgrade to 11.10
I noticed the same errors about adding certificates/pem files when upgrading to 11.10 Oneiric from 11.04
Ubuntu on Virtualbox 4.1
Installed java sdk on Ubuntu 10.04, using aptitude as:
sudo aptitude install openjdk-6-jdk
Upgrade to 11.10 from Update manager UI
I did not run pending 11.04 updates before starting the upgrade to 11.10