Date: Tue, 16 Jul 2013 15:10:37 -0700 From: aurfalien <aurfalien@gmail.com> To: Warren Block <wblock@wonkity.com> Cc: Michael Sierchio <kudzu@tenebras.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: gpart: table 'da0' is corrupt; operation not permitted Message-ID: <706BDFA7-0C04-4C16-96A7-61C145997554@gmail.com> In-Reply-To: <alpine.BSF.2.00.1307161558270.82814@wonkity.com> References: <AE78EABA-CB23-4B04-BE55-37627B8C6A83@gmail.com> <CAHu1Y70gF4T=4F3wUy9Q5wT2EmJ5sOfwsedkrsFEoLUZfq6e%2BA@mail.gmail.com> <CB03CFAC-6F82-46B0-B456-E81E45A4F4AB@gmail.com> <alpine.BSF.2.00.1307161558270.82814@wonkity.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Jul 16, 2013, at 3:01 PM, Warren Block wrote:
> On Tue, 16 Jul 2013, aurfalien wrote:
>=20
>>=20
>> On Jul 16, 2013, at 1:50 PM, Michael Sierchio wrote:
>>=20
>>> On Tue, Jul 16, 2013 at 1:44 PM, aurfalien <aurfalien@gmail.com> =
wrote:
>>>=20
>>>> Upon doing;
>>>>=20
>>>> gpart destroy da0
>>>>=20
>>>> I get;
>>>>=20
>>>> gpart: Device busy
>>>=20
>>> crude but effective:
>>>=20
>>>=20
>>> DISK=3Dda0
>>>=20
>>> offset=3D`diskinfo $DISK | awk '{ print $4 - 131072 }'`
>>> dd if=3D/dev/zero of=3D/dev/$DISK bs=3D64k count=3D1
>>> dd if=3D/dev/zero of=3D/dev/$DISK bs=3D64k seek=3D$offset
>>>=20
>>> gpart create -s gpt ${DISK}
>>=20
>> This is what I ended up doing.
>>=20
>> I unplugged it, waited a few, re plugged and then I was able to =
delete/destroy.
>>=20
>> I will keep your method on hand though as I prefer not doing a hot =
plug.
>=20
> Hot plug? That just wipes the beginning and end of the disk. I would =
erase 1M just to be sure.
>=20
> The more elegant version is
>=20
> gpart destroy -F da0
Oh for sure, I did that after the hotplug which finally allowed me to f =
do it.
I had to hot plug a few times though.
> If it gives an error when doing that, disabling the safety may be =
necessary: sysctl kern.geom.debugflags=3D16
> Do that only when necessary. It usually is not.
Funny, I did that based on some googling but no dice.
I booted in both regular shel and Live CD.
- aurf=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?706BDFA7-0C04-4C16-96A7-61C145997554>