Tvheadend

After an upgrade the backup process is triggered slowing the start of tvh, for small configs this isn't a problem, but larger ones this can take some time.

I know the obvious solution would be to disable backups at start with the -B option, but it would be nice if tvh could spawn the backup process in the background.

I have a few ideas of how this could be done.

1. Snapshot the config before start then spawn the backup?
2. Copy the config dir to a temporary directory, start tvh then backup the copy?

Opinions?