Startup drive missing from "About this Mac"

[ehofmeister]

Thank you for the quick replys (-: and yes, I am VERY confident that the partition is done the right way. I have one single partition on the internal drive, formatted as "Macintosh HD". It is a GUID partition using the Mac OS - Extended (Journaled) filesystem. I have set it up using Mac OS Setup's disk utility, a process that I have used flawlessly for the past 3-4 years, ever since I converted to the Mac from Windows. I have very good knowledge of Mac OS and Windows in general, and have worked with IT and support professionally, so I am quite confident that I am doing things right.

This issue is really weird, though, as I have tried doing a clean install, since my last post. Prior to this, I did a PRAM reset, a reset of the System Management Controller (SMC) and I wiped the internal drive completely (deleting the partition). Then I booted from the Mac OS Snow Leopard Setup DVD and set up a brand new partition, then installed the system. After a successful installation and a reboot, the issue remains (!). That is really, really weird, I think.

As I wrote before, when I boot directly from the backup, the startup volume is correctly stated in the "About" tab. But as soon as I boot from the Mac itself, it disappears.

I tried rebooting a couple of times after the initial setup, and all of a sudden, the startup volume was correctly stated, so I take this to be some sort of minor issue with the internal "bios" parameters (I cannot remeber what they are called on a Mac).

However, as you say, this must mean that the backup is OK, and therefore I subsequently restored it again, so I wouldn't have to set everything up a new. This again has led to the mysterious dissappearance of the startup volume in the "About" tab, but I have more or less come to the conclustion that this is a minor - although weird - issue, and I don't think I will spend any more time on it. Everything seems to work OK. Do you not agree that this is the best course?

Thanks again for great support!

Regards,

Esben