Date: Fri, 24 Feb 2012 23:24:18 +0200 From: Omer Faruk SEN <omerfsen@gmail.com> To: nightrecon@hotmail.com Cc: freebsd-questions@freebsd.org Subject: Re: 8.3-BETA1 installation problem Message-ID: <CAG%2Br6L9VvMnAD50=OEsog0hx%2BnnpnauiTFaVtzx6kg2Kk8TJAw@mail.gmail.com> In-Reply-To: <ji8jr6$2q0$1@dough.gmane.org> 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> <alpine.BSF.2.00.1202240827150.92924@wonkity.com> <ji8jr6$2q0$1@dough.gmane.org>
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I have done a simple dd if=/dev/zero of=/dev/ad6 count=100 bs=1m which i think covers all. But still no luck. Regards. On Fri, Feb 24, 2012 at 8:11 PM, Michael Powell <nightrecon@hotmail.com>wrote: > Warren Block wrote: > > > 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 > > ^^^^^^^^ > Excellent idea here. It covers GPT too, for as if a Linux distro was on the > disk previously, or anything else using GPT. For me I only needed the one > because my problem was only a change from FBSD 6.2 to 7.x something, > no GPT involved - my problem was only disklabel related. > > > Replace X with the correct drive number. > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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