Date: Sun, 1 Dec 2019 18:22:15 +0100 From: Tomasz CEDRO <tomek@cedro.info> To: FreeBSD Questions Mailing List <freebsd-questions@freebsd.org>, "freebsd-usb@FreeBSD.org" <freebsd-usb@freebsd.org> Subject: Re: pendrive clone impossible ? Message-ID: <CAFYkXjkKRa3Fz6xuiCw0yHKsL6icVnJVLhD=P%2BX0ZqawEJ2N%2Bw@mail.gmail.com> In-Reply-To: <CAFYkXjkHobPfNwCL3ssL98TgUjE=jvojXACH%2BiR0EV-tzK-pxA@mail.gmail.com> References: <CAFYkXjkHobPfNwCL3ssL98TgUjE=jvojXACH%2BiR0EV-tzK-pxA@mail.gmail.com>
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As my previous message got moderated, just a quick summary - looks like a GEOM_PART silently discards writes to MBR with a DD when it considers MBR broken (writing to the rest of the disk is possible). I have reported this as error: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242341 -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
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