Date: Mon, 10 Jul 2017 10:34:11 +0100 From: Matthew Seaman <matthew@FreeBSD.org> To: freebsd-questions@freebsd.org Subject: Re: Unusual Question Message-ID: <d3a607c8-c600-5ade-46a4-8b7cf0261f7d@FreeBSD.org> In-Reply-To: <888578F8-AD68-4993-823C-152789F3C929@mail.sermon-archive.info> References: <888578F8-AD68-4993-823C-152789F3C929@mail.sermon-archive.info>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --6GStM2knSQWOC9hhtWNWd1ai6DKwx0BmC Content-Type: multipart/mixed; boundary="QgWhl2lgkxwqaFR5CETtE4tgJa7pQrDXM"; protected-headers="v1" From: Matthew Seaman <matthew@FreeBSD.org> To: freebsd-questions@freebsd.org Message-ID: <d3a607c8-c600-5ade-46a4-8b7cf0261f7d@FreeBSD.org> Subject: Re: Unusual Question References: <888578F8-AD68-4993-823C-152789F3C929@mail.sermon-archive.info> In-Reply-To: <888578F8-AD68-4993-823C-152789F3C929@mail.sermon-archive.info> --QgWhl2lgkxwqaFR5CETtE4tgJa7pQrDXM Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 2017/07/09 10:57, Doug Hardie wrote: > I have a FreeBSD 9.3 remote server that needs to be purged. I know > that rm -rf / will remove all the directory entries, but I need to > write over the drive. I thought that dd if=3D/dev/zero of=3D/dev/ada0 > might do the trick, but it gives an not permitted error. The whole > thing can crash and burn at the end. This is an unmanned site so > moving drives is not viable. I'd do this by usinf dd(1) but slightly more carefully. You need a small, temporary, bootable partition that contains dd(8). This could be either by booting from install media -- although as you say, the machine is in an unmanned location so that may not be feasible -- or you could possibly re-purpose an existing swap partition. You can then zero out each of the other partitions /dev/ada0p1 etc on your drive -- the idea being not to try and delete the OS you're running from, as that will likely crash in the middle and leave things half deleted. Cheers, Matthew --QgWhl2lgkxwqaFR5CETtE4tgJa7pQrDXM-- --6GStM2knSQWOC9hhtWNWd1ai6DKwx0BmC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQJ8BAEBCgBmBQJZY0obXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQxOUYxNTRFQ0JGMTEyRTUwNTQ0RTNGMzAw MDUxM0YxMEUwQTlFNEU3AAoJEABRPxDgqeTnZPsP/AupcfY3pL9IMgoHEeQyD9Q+ Xw2isg1KgKtMNLw1reNPKsSscXiMFT3qTwDs5qDHGbcQ7Yiq9yWw1WenIObLSJl3 38GXhQwKHHDC7+xBN/nwcfUzeZBPYEsGJjQRebe8H5a0NZGF+0N4FRLe1PpzYzrx nbm7a2tPZibKh7kBJLJMpYXhNLbu3DNnDbIcy5IZhi4TVYnW6sYoBNH/o719eDv1 d+w4bhxI3mJiQU1snH0/Y49Jubl45iN4A4vj7BgT7YEeFMgemPwY8d9j2P6WrMoy D8wQqzHYFizeIFZnti07ximanU/rKvc8zEJhPR6Hpp9aHQ0ELg1LunE/el/PePOp 9Ti5dHHe9GkvtARLoUhmTGi1PNk2IfXEwIl/55pTY3tY8acVGnKfBtwgqQucGqkD vUlkvAE+ynJg+Xd0l1575S6NOl1tXigRAzi5H55q89rhDuhJO69La8Z2d+h97Tqs D70ow1P1NCcIYwFq1d6dbbxcSNKV1zwh7OntsjMqw7FlowRYIv2a8mYmHNkBe9Xz JP3Vqbzwm+k7roOsTwq7hV82evcMV5XPk2/Z0pwZPuvqj4aHLwV1sFCGFkSce+YG vT96S8Aj/MRbxMjLJKEwNSf35Xthq7aEKbuQ9isvAVrfePC6yRRVRAW6CW5KAPJK 6S4i14dutO3jccWSYEU2 =5ts6 -----END PGP SIGNATURE----- --6GStM2knSQWOC9hhtWNWd1ai6DKwx0BmC--
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