The apt package tool is used to upgrade the system. You can use the rollback to avoid loss the system (more details in the below section).
Update the database of available packages, with their version:
Upgrade the system with the new version of packages:
Upgrade the system with new version of Debian and remove useless packages:
As mentioned here, the root partition is in LVM disk. With this configuration, it can be save by a LVM snapshot.
With snapshots, the partition can be rollback in the stable state with this command:
Otherwise, the snapshot can be remove with these commands:
Can't create a snapshot with old name
If you don't reboot the machine, the
lvcreate command believes the name is always used. To remove it, you need to launch this command:
The SNMP protocol is used to supervise machines. It's a protocol to watch the state of machines on a network.
At each boot, the host must build the configuration for OpenVSwitch. During the network playbook (
ignored_bridges variables, a middle configuration is produced. This configuration is used by this tool to build the OpenVSwitch configuration.