in theory we'd need to be more cautios but this was added only during beta, which is when we do not really provided any stability guarantee, further, it's rather unlikely that one added very important repos that, when removed, break something (again *during* beta). The new APT repo management makes it also easy to see when one does not gets any PVE updates, and one can add the pvetest repo there again easily too. Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>