Ubuntu Cockpit Cache Refresh Error

Linux Cockpit Cache Refresh Error On Ubuntu

When using Cockpit with Ubuntu some aspects appear not to work, such as attempting to refresh software updates. A Failed to refresh cache error appears.

To resolve change the network renderer to Network Manager (in place of networkd)

1. Determine the interface configuration file used by netplan

   • Filename will be similar to 50-cloud-int.yaml or 00-install-config.yaml

       ls /etc/netplan/
     

   • May also need to disable cloud init

     • Notes from default Ubuntu 50-cloud-init.yaml

         # This file is generated from information provided by the datasource.  Changes
         # to it will not persist across an instance reboot.  To disable cloud-init's
         # network configuration capabilities, write a file
         # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
         # network: {config: disabled}
       

2. Using an editor of your choice edit the config yaml file

3. Add renderer: NetworkManager to the interface configuration

    network: 
        ethernets:
            eth0:
                dhcp4: true
                optional: true
        version: 2
        renderer: NetworkManager
   

4. Test and if successful apply the configuration with netplan

    sudo netplan try
   

5. Validate Cockpit now works as expected

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