Problem adding 1TB SATA disk to system
nightrecon at hotmail.com
Thu Sep 16 16:15:15 UTC 2010
Andy Wodfer wrote:
> 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.
I do not believe you can utilize fdisk and label for this. Since it appears
there may be a possibility of a garbage MBR present this will wipe it:
Boot a LiveFS CD, then at a root prompt do:
sysctl kern.geom.debugflags=16 and:
dd if=/dev/zero of=/dev/adx oseek=1 bs=512 count=1
where x equals your drive number. This will zero out any old MBR.
You will need to set this up with gpart instead of fdisk. More details in
man gpart and possibly glabel. The devil is in the details, but this may be
enough to get you pointed down the road.
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