I took the plunge and decided to upgrade to Mac OS 10.5 a.k.a. Leopard this weekend. Here’s how it went… Initially I made sure I had two full cloned and boot-able backups that I made with CCC. After this I actually tried booting off them just to make sure. Having backups before such a major upgrade is a mandatory step for all people whom undertake any OS upgrade. Secondly I decided on the upgrade path.