Complete partitions update/replacement, like in Android system updates (OTA)

Is it possible to replace the whole partitions with Mender, like in Android system updates (OTA)?
If YES, then how much additional size is required and where the partition image is stored before updating? For example if we would like to replace RootfsPartB, which is 4GB, we will need at least 4GB free space somewhere for the image, before to update the RootfsPartB. Where is stored this image file? RootfsPartA is used for the currently running system and there is no free space of 4GB.

You don’t need any additional space with Mender. The update is streamed directly into RootfsPartB from the network and is activated when (and only when) the streaming is finished.

Thank you. This is very good solution :slight_smile: