Update page 'UpgradeTo14.04'

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## Upgrade to Ubuntu 14.04
notes on upgrading unbuntu from 12.04 to 14.04 for pan.do/ra
do-release-upgrade -p
Questions:
- ssh disable root password: yes
- postgress-common install maintainer
- nginx keep local
restart
[[#LXC|if you run pan.do/ra in LXC see below]]
Post Upgrade:
Stop all pan.do/ra processes (run as root):
/srv/pandora/ctl stop
Enable pan.do/ra PPA again (run as root):
sed -i "s/^# deb/deb/g" /etc/apt/sources.list.d/j-pandora-precise.list
apt-get update
apt-get upgrade
Install ffmpeg (run as root)
apt-get install ffmpeg
New version of Postgres requires database migration (run as root):
apt-get install postgresql-9.3 postgresql-contrib-9.3
pg_dropcluster 9.3 main --stop
pg_upgradecluster 9.1 main
pg_dropcluster 9.1 main
apt-get remove postgresql-9.1 postgresql-contrib-9.1
Upgrade virtualenv (run this as "pandora" user):
cd /srv/pandora
rm -r lib/python2.7/site-packages/pip-* bin/pip*
virtualenv --system-site-packages .
Start pan.do/ra again (run as root):
/srv/pandora/ctl start
## LXC
Container configuration needs to be changed for the containers to start up again.
in /var/lib/lxc/NAME/
- Remove proc/sys mount point from fstab, leaving an empty file.
- Remove most options from config, leave name/rootfs and network config:
# Common configuration
lxc.include = /usr/share/lxc/config/ubuntu.common.conf
# Container specific configuration
lxc.rootfs = /var/lib/lxc/pandora/rootfs
lxc.mount = /var/lib/lxc/pandora/fstab
lxc.utsname = pandora
lxc.arch = amd64
# Network configuration
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = lxcbr0
lxc.network.hwaddr = XX:...
lxc.start.auto = 1