You should not touch any inner directories of 66. Use the corresponding tools instead.
If you want to control environment of the service, pick the 66-env tool. You can modify/configure the environment of the service through it. If you want to make manually backup, please make it at your home directory instead of the 66 directory.
Bertram boot@system: info: disable service: mount-swap
boot@system: info: enable service: mount-swap
as it should, I suppose
This means that the SWAP key was set to no at boot@system environment file. to change it simply do the following:
# 66-env boot@system ## and changes what you need
# 66-enable -t boot -F boot@system
You can also list the contents of the file:
# 66-env -L boot@system