Problem adding 1TB SATA disk to system

Andy Wodfer wodfer at
Thu Sep 16 15:35:35 UTC 2010

Hi all,

I'm running FreeBSD 8.0 release (will upgrade to 8.1 STABLE tonight).
However, I'm having big problems adding a new harddrive to the system. I
want a separate 1TB SATA installed to recover backup files on, but when I
add it I only get error messages:


ad2: 953869MB <WDC WD1000FYPS-01ZKB0 02.01B01> at ata1-master SATA300
GEOM: ad2: corrupt or invalid GPT detected.
GEOM: ad2: GPT rejected -- may not be recoverable.
GEOM: ufsid/4c80e66f50f43e15: corrupt or invalid GPT detected.
GEOM: ufsid/4c80e66f50f43e15: GPT rejected -- may not be recoverable.

I've tried label and fdisk, but I can't get it to work.


WARNING:  It is safe to use a geometry of 1938021/16/63 for ad2 on │
                    │ computers with modern BIOS versions.  If this disk is
to be used   │
                    │ on an old machine it is recommended that it does not
have more     │
                    │ than 65535 cylinders, more than 255 heads, or more
than            │
                    │ 63 sectors per
track.                                              │

│                                                                    │
                    │ Would you like to keep using the current geometry?

Yes ... but it doesn't work. The computer hardware was bought new about 7
months ago and the mainboard is an intel server board.

Can someone help me get this disk up and running (if possible?)?


Best regards,

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