updates alternatives don't work

[dustymabe]

However much you might like or dislike alternatives. There are significant pieces of our stack that still use it. Let's go through some effort to get it working with rpm-ostree systems so we dont hit the recent issue with iptables again (#676). There is an open issue upstream (fedora-sysv/chkconfig#27) asking if alternatives can be updated to use /etc/ for state instead of /var/. Let's try to work with the maintainer upstream to fix this problem so all RPM-OSTree systems don't have this same problem where intended defaults don't get applied.

[travier]

Stumbled upon this one again investigating the following log:

systemd[1]: var.mount: Directory /var to mount over is not empty, mounting anyway.

Which is from:

ls -R /sysroot/ostree/deploy/fedora-coreos/deploy/*/var/
/sysroot/ostree/deploy/fedora-coreos/deploy/1b7e0d318f5e78013434236ad17edb8b65297f0e8de3e765562fdedc1a7e52ab.0/var/:
lib  mnt

/sysroot/ostree/deploy/fedora-coreos/deploy/1b7e0d318f5e78013434236ad17edb8b65297f0e8de3e765562fdedc1a7e52ab.0/var/lib:
alternatives  vagrant

/sysroot/ostree/deploy/fedora-coreos/deploy/1b7e0d318f5e78013434236ad17edb8b65297f0e8de3e765562fdedc1a7e52ab.0/var/mnt:

For reference: coreos/rpm-ostree#1614 & coreos/rpm-ostree#1861

Code: https://github.com/coreos/rpm-ostree/blob/12cc4e5f5bbe8da2b59e10fef05b9d30156fc39e/rust/src/composepost.rs#L707-L713

[LorbusChris]

related: fedora-sysv/chkconfig#9