Because execution of HyperAgent backup task creates a backup image from the snapshot of hypervisor, the backup source OS is not limited to any specific OS type.
However, restore task using the HyperAgent backup image file may fail depending on the OS. Please make sure the OS is tested.
Tested OS - Windows Windows 7 ~ 10 Windows 2003 ~ 2019 - Linux RHEL5.x ~ 8.x CentOS5.x ~ 8.x SLES11SP3 SLES11SP4 SLES12 SLES12SP2 SLES15SP1 OpenSuse12.1 OpenSuse15SP1 Ubuntu12.04 LTS ~ 20.04 LTS Debian9 ~ 10
* In case of Linux, even when the OS is tested, the UEFI boot entry is not automatically created depending on the OS versioin when booting up the restored system. Then, you need to create a boot entry before booting up the restored system.