[SFS] how to erase the crap out of (off from?) an old RAID/LVM/whatever disk

[Dustin Boyd]

Looks like DBAN got a purchaser, but not for personal use -
https://dban.org/

DBAN wouldn't have helped with the RAID part.

-----

DUSTIN BOYD

SOLUTIONS ARCHITECT, DOD - AIR FORCE, RHCA

Red Hat

<https://www.redhat.com/>

duboyd at redhat.com    M: 719-357-8386
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TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

On Mon, Mar 12, 2018 at 3:42 PM, Shawn Perry <shawn at redmop.com> wrote:

> Depends on what you are reusing it for...
>
> On Mar 12, 2018 3:15 PM, "David L. Willson" <dlwillson at sofree.us> wrote:
>
>> This was for drive re-use, not security, so I needed a tool with some
>> finesse.
>>
>> --
>> David L. Willson
>> Teacher, Engineer, Evangelist
>> COA LFCS CCAH RHCE CLP
>> Mobile 720-333-LANS(5267)
>> http://sofree.us
>>
>> This is a good time for a r3VOLution.
>>
>> ------------------------------
>> *From: *"Chris Fedde" <chris at fedde.us>
>> *To: *"David L. Willson" <DLWillson at thegeek.nu>
>> *Cc: *sfs at lists.sofree.us
>> *Sent: *Monday, March 12, 2018 10:57:08 AM
>> *Subject: *Re: [SFS] how to erase the crap out of (off from?) an old
>> RAID/LVM/whatever disk
>>
>> I use a sledge hammer.
>>
>> On Sat, Mar 10, 2018 at 3:59 AM, David L. Willson <DLWillson at thegeek.nu>
>> wrote:
>>
>>> I knew there was a tool for the job, but I couldn't remember the name.
>>> Thanks for the reminder, Zack!
>>>
>>>
>>>
>>> Sent from my Verizon, Samsung Galaxy smartphone
>>>
>>>
>>> -------- Original message --------
>>> From: Zack Coffey <clickwir at gmail.com>
>>> Date: 3/9/18 21:38 (GMT-07:00)
>>> To: "David L. Willson" <DLWillson at thegeek.nu>
>>> Cc: sfs at lists.sofree.us
>>> Subject: Re: [SFS] how to erase the crap out of (off from?) an old
>>> RAID/LVM/whatever disk
>>>
>>> I've used wipefs before.
>>>
>>> http://manpages.courier-mta.org/htmlman8/wipefs.8.html
>>>
>>> On Mar 9, 2018 6:01 PM, "David L. Willson" <DLWillson at thegeek.nu> wrote:
>>>
>>>> This was hard enough to find that I want to stick in my journal. Hello,
>>>> journal.
>>>>
>>>> ```
>>>> # wait for /dev/sdc to become available
>>>> while ! blockdev --getsz /dev/sdc; do sleep 5; done
>>>> # erase the tail - gets the RAID config
>>>> dd bs=512 if=/dev/zero of=/dev/sdc count=2048 seek=$(( $( blockdev
>>>> --getsz /dev/sdc ) - 2048))
>>>> # erase the head - gets the partition table
>>>> dd bs=512 if=/dev/zero of=/dev/sdc count=1024
>>>> # cleanly disconnects
>>>> eject /dev/sdc
>>>> ```
>>>>
>>>> --
>>>> David L. Willson
>>>> Teacher, Engineer, Evangelist
>>>> COA LFCS CCAH RHCE CLP
>>>> Mobile 720-333-LANS(5267)
>>>> http://sofree.us
>>>>
>>>> This is a good time for a r3VOLution.
>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
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>>>
>>
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