2.1.5 Distribution with recovery specified during installation failure
If installation of the distributed package fails, it is possible to perform recovery to the old version, by specifying the recovery in the packaging-information file during packaging.
When a distribution job which specifies recovery is executed, the distribution-destination system acquires a backup of the old version, and then begins installation of the package. If the package is not installed, the distribution-destination system uses the backup of the old version to perform recovery. The execution results of the recovery are reported to the managing server as a recovery status.
For details on specifying recovery during packaging, see 2.2.3(1) Creating the packaging-information file. For recovery operation during installation, see 2.4.3 Recovery when installation fails.