Transfers and migration agent hangs while updating

[nblcloud]

Hi!

I'd like to upgrade my server from Ubuntu 12.04 to Ubuntu 14.04. The idea is to migrate my actual server (S1) to another one (S2). Then, format and install ubuntu 14.04 with Plesk on S1, and finally migrate the data from S2 to S1. Is it a good solution? Is it possible to do this using only one server? I don't know if I can do it making a backup, install Ubuntu 14.04 and then, restore the data into the server.

However, I have a problem with the migration agent. When I go the migration page, the migration agent tries to update itself and it keep at 0% forever (I attach an screenshot). Do you know what could happen?

Thank you!

 

[IgorG]

Do you have any enabled iptables rules? Try to disable firewall.

 

[nblcloud]

No changes with the firewall disabled :-(