Date: Wed, 30 Sep 2020 18:25:55 +0200 From: Polytropon <freebsd@edvax.de> To: Christoph Kukulies <kuku@kukulies.org> Cc: freebsd-questions@freebsd.org Subject: Re: concluding from dd raw dump size to disk mfgr Message-ID: <20200930182555.54725564.freebsd@edvax.de> In-Reply-To: <F5976B86-7257-4507-A53C-4511674549D5@kukulies.org> References: <876b79ff-b781-fede-a4de-cb58becd557c@kukulies.org> <20200930133550.24c382b6.freebsd@edvax.de> <F5976B86-7257-4507-A53C-4511674549D5@kukulies.org>
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On Wed, 30 Sep 2020 14:59:32 +0200, Christoph Kukulies wrote:
> [...]
>
> > Am 30.09.2020 um 13:35 schrieb Polytropon <freebsd@edvax.de>:
> >
> > On Wed, 30 Sep 2020 09:40:00 +0200, Christoph Kukulies wrote:
> >> I made a dd dump of a raw disk device the other day. The size of the
> >> dump is exactly
> >>
> >> 500107862016 bytes in size, corresponding to 997773168 sectors (512bytes).
> >>
> >> I would like to dump this file back to a physical device. Best would be
> >> the one which fits exactly that size. Unfortunately I presently don't
> >> know what drive mfgr./type this corresponds to. Is there a way to find out?
> >
> > A convenient way is to use the following command:
> >
> > # diskinfo -v <device>
> >
> > Also check the corresponding entry in the "dmesg" output.
> >
> > Note that AF devices might prefer a sector size of 4kB (4039
>
>
> What is „AF“ devices?
This is short for "advanced format", indicating that those
devices use a sector size of 4096 bytes ("4K-drives") instead
of 512 bytes.
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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