Files, scripts and directories to run the system with a
read-only root filesystem with /etc writeable via overlayfs.
This package should never be installed in an already running
system! It should only be selected by a system role for a
read-only root filesystem with transactional updates.
A new file /etc/fstab.sys is created and included in the initrd.
The multiversion features of libzypp and the purge-kernel service
will be disabled.