To enable online upgrades on existing PetaSAN 2.3.1 hosts, perform the following steps:
wget http://archive.petasan.org/repo/2.3.1-enable-updates.tar.gz
tar xzf 2.3.1-enable-updates.tar.gz
cd 2.3.1-enable-updates
./enable-updates.sh
This should only be done once per host.
Once enabled, upgrades can be performed using regular apt commands:
apt update
apt list –upgradable
apt upgrade
To use new caching features, a reboot is required to boot in 2.4.0 kernel.
In PetaSAN version 2.4.0 and later, online upgrades is enabled by default.