Date: Fri, 24 Feb 2012 08:33:21 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Omer Faruk SEN <omerfsen@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: 8.3-BETA1 installation problem Message-ID: <alpine.BSF.2.00.1202240827150.92924@wonkity.com> In-Reply-To: <CAG%2Br6L8LLW-d6dx27qEgU95xp_agMFwgbEx=VB_4E=5GSR-WSw@mail.gmail.com> References: <CAG%2Br6L_OfGASNwbtpysGfwaSEy0zP8=obVQN2zeWFCaPgDe3%2BA@mail.gmail.com> <alpine.BSF.2.00.1202221325120.79418@wonkity.com> <ji3tke$7g9$3@dough.gmane.org> <CAG%2Br6L8LLW-d6dx27qEgU95xp_agMFwgbEx=VB_4E=5GSR-WSw@mail.gmail.com>
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On Fri, 24 Feb 2012, Omer Faruk SEN wrote: > Already done that but still habe the same issue. I can dd and sysctl but > after installing without using W at disk label screen still no luck. I have > also done > sysctl kern.geom.debugflags=16 on fixit and restarted installation but > still getting the same error. [Please don't top-post, it makes responding more difficult.] >> If you need to clear the old MBR the "old way", use a LiveFS or Fixit shell >> and do this (as root): >> >> sysctl kern.geom.debugflags=16 and: >> >> dd if=/dev/zero of=/dev/adx oseek=1 bs=512 count=1 The sysctl is not necessary. The dd may not erase enough of the disk. It will erase a bsdlabel, but not the MBR/PMBR. As always, be warned that this will erase the partition table on that disk, so make sure it's the correct target disk and that you have full backups: dd if=/dev/zero of=/dev/adX bs=512 count=34 Replace X with the correct drive number.
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