參考 Prebuilt packages on Ubuntu 14.04
wget -O - http://dl.hhvm.com/conf/hhvm.gpg.key | sudo apt-key add -
echo deb http://dl.hhvm.com/ubuntu trusty main | sudo tee /etc/apt/sources.list.d/hhvm.list
sudo apt-get update
sudo apt-get install hhvm
# If you are getting segfaults
sudo apt-get install hhvm-dbg
# Living on the edge (rebuilt everyday, unstable)
sudo apt-get install hhvm-nightly
# Segfaults in the nightly
sudo apt-get install hhvm-nightly-dbg
# If you got a libgmp.so.10 error
sudo apt-get install libgmp-dev
# If you got a libmemcachedutil.so.2 error
sudo apt-get install libmemcached-dev
