Upgrade distro


I am a computer pro, but I have never worked with linux.

I am now managing a FreePBX box with a distro on it.

I would like to update this, but I have no idea where to start and how to backup.

Any help would be really appriciated.




I have a similar problem.

Yes, I read of of this, but I don’t quite know where to start.

So, did I get this right that I do not need to backup the whole computer, just use the FreePBX backup and restore function?

I need to upgarde to the latest 1.8 Version and than install a new version (on a different computer) and then restore the settings?