I need to upgrade my PIX 525 from current version 7.0(4) to a more recent one: 7.2(2).
I have a doubt because the new code is larger than the current one. And I have not enough space in memory to put both codes at the same time. So I think the new code will replace the old one in flash.
How can i achieve that? Is there anything I need to know before upgrading my firewall?
Thanks you a lot for your help!