Comment 2 for bug 97645

Oh sorry for not commenting on this.

I think the problem had to do with my configuration of daemontools. It was configured to respawn at all runlevels making it impossible to unmount. So I have sinced fixed the issue by fixing that.

However, there might be reason to investigate a cleaner way of handling such situations for users not capable of taking care of it. For example makeing sure to sync all filesystems before shutdown even if unmount fails.