need help - lost config after restore backup

[kc6785]

Hi, I am just starting to learn opnsense, this is my first try.

So I set up a opnsense vm on ESXi, with two interfaces. I made em0 the WAN link, and em1 as LAN link. This is different from the factory default. Anyways, I was able to get a WAN ip from uplink dhcp server, and also I can access the web gui from a windows vm connected to the LAN.

Then I save the configuration to a file, then restored it right away. Selected "all". After opnsense restarted, it lost its configuration, and shows em0 as LAN, and em1 as WAN.

This is such a simple case, I really did not have any other config changes, except the two interfaces. However, opnsense failed to restore such a simple config back up. I also tried this on a laptop install, same thing also happened, lost access after the restart.

Any help will be appreciated. I am really a newbie, and don't know where to start to troubleshoot.

[kc6785]

I tried a couple more times. I am only doing even simpler changes from the default. I am keeping the em0 as LAN and em1 as WAN, same as default. I only changed the LAN ip to 192.168.5.1 as well as dhcp pool range. Now I make a backup, and restore the backup. Again, the config was lost and opnsense went back to the factory default. What is going on?

I wonder if anyone here had ever used the configuration backup and restore feature in release 20.1. If yes and many, then I must have done something wrong. Please let me know.

I checked the configuration history, and it seems it has been wiped clean after the restore, starting from factory default. Nothing before the restore is kept. The very first entry is "(root) Factory Configuration". It seems the restoring (saved backup) actually did restoring to factory default instead.

[franco]

The description doesn't actually say why it was happening, but I can assure you that when you create interfaces with the "prevent interface removal" option enabled this will not happen again.


Cheers,
Franco

[kc6785]

Thanks. It works now after I selected the "prevent removal" option.