only remove resolv.conf if systemd-resolved is still there

1.Base/4.cockpit/0_setup.py

@@ -11,7 +11,7 @@ def setup(interactive=False):
         'apt purge --auto-remove -y netplan.io',
         'mkdir -p /etc/NetworkManager/conf.d',
         'touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf',
-        'rm /etc/resolv.conf && cp /run/systemd/resolve/resolv.conf /etc/resolv.conf',
+        'ls /run/systemd/resolve/resolv.conf && rm /etc/resolv.conf && cp /run/systemd/resolve/resolv.conf /etc/resolv.conf',
         'systemctl disable --now systemd-resolved.service',
         'printf "[main]\ndns=default" > /etc/NetworkManager/conf.d/disable-systemd-resolved.conf',
     ]