returning to 8.2 from 9.0
fbsd8 at a1poweruser.com
Sat Sep 10 22:55:32 UTC 2011
Johan Hendriks wrote:
> Fbsd8 schreef:
>> Johan Hendriks wrote:
>>> Fbsd8 schreef:
>>>> Have test pc. Been running 8.2 just fine. Installed 9.0 from cd and
>>>> after playing around tried to reinstall 8.2. Got error about GTP
>>>> table while trying to setup the HD. Used 8.0 livecd to
>>>> "dd if=/del/zero of=/dev/ad0 count=5 to wipe the start of the HD clean.
>>>> Now 8.2 install issues this msg
>>>> GEOM: ad0: the primary GPT table is corrupt or invalid.
>>>> How do I fix the HD so 8.2 will install?
>>>> freebsd-questions at freebsd.org mailing list
>>>> To unsubscribe, send any mail to
>>>> "freebsd-questions-unsubscribe at freebsd.org"
>>> maybe this little script helps you.
>>> It helped me in several situations.
>>> If that does not do the job, you could try dban disknuke that will
>>> wipe the disk completely
>>> Johan Hendriks
>> diskinfo da0
>> says Device not configured
>> I all ready did "dd if=/dev/zero of=/dev/da0 count=2 to wipe the
>> front of the disk.
> i now see two different things?
> dd if=/del/zero of=/dev/ad0 count=5
> dd if=/dev/zero of=/dev/da0 count=2
> first your disk is adx and the second time it is dax
> Make sure you use the right disk.
> There is also a part add the end of the disk that needs to be wiped, not
> only the start of the disk.
> Johan Hendriks
Thanks that little script at
did the trick.
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