Every 3 months or so I have what I call password day. This is when all my corporate passwords expire and I need to change them. Despite most of IBM's internal services being authenticated against our intranet ID and password, I still need to manually change things like OS Passwords (two Windows and one Ubuntu clients), VPN, Boot up and hard disk passwords, Blackberry, Sametime, Activities, FTP and a few others relating to non standard sites and services.
Whilst this is quite irritating to have to do, it is a necessary evil and normally quite straight forward. But today I hit a snag I haven't come across before. When I went to change my hard disk password in the BIOS it was grayed out. This was especially annoying because I had changed my power on password successfully. The last thing you want is to have two different passwords on boot up.
My initial thought was that it must be something to do with the supervisor password - but it wasn't enabled. Turns out that the problem was that the hard disk password was set on a different machine, a Thinkpad T60p but I had upgraded to a T61p. As luck would have it, I hadn't got round to returning the old T60p so I could swap the drive back - remove the password and then put it back in my new machine and pop the new password on. I don't know what I could have done if I had returned the old machine. So a warning to Thinkpad users - it is incredibly handy being able to use the same drives across different models - but if you are transferring a drive then remove the password first - otherwise you might find that you are stuck with it!