Date: Fri, 25 Nov 2011 09:54:57 -0800 From: Robert <traveling08@cox.net> To: Warren Block <wblock@wonkity.com> Cc: "Julian H. Stacey" <jhs@berklix.com>, questions@freebsd.org Subject: Re: Invalid fdisk partition table found (fwd) Message-ID: <20111125095457.477e9501@dell64> In-Reply-To: <alpine.BSF.2.00.1111241326490.69990@wonkity.com> References: <201111241116.pAOBGH4i098240@fire.js.berklix.net> <20111124113938.2d99eec2@dell64> <alpine.BSF.2.00.1111241326490.69990@wonkity.com>
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On Thu, 24 Nov 2011 13:45:37 -0700 (MST) Warren Block <wblock@wonkity.com> wrote: > On Thu, 24 Nov 2011, Robert wrote: > > > [robert@dell64] ~> sudo gpart destroy -F da1 > > da1 destroyed > > > > [robert@dell64] ~> fdisk /dev/da1 > > ******* Working on device /dev/da1 ******* > > parameters extracted from in-core disklabel are: > > cylinders=29 heads=64 sectors/track=32 (2048 blks/cyl) > > > > parameters to be used for BIOS calculations are: > > cylinders=29 heads=64 sectors/track=32 (2048 blks/cyl) > > > > fdisk: invalid fdisk partition table found > > The partition table was cleared. > > > Media sector size is 512 > > Warning: BIOS sector numbering starts with sector 1 > > Information from DOS bootblock is: > > The data for partition 1 is: > > sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD) > > start 32, size 59360 (28 Meg), flag 80 (active) > > beg: cyl 0/ head 1/ sector 1; > > end: cyl 28/ head 63/ sector 32 > > And it starts with a default table equal to the size of the drive. Is it supposed to still show sysid 165 ? I was under the impression that dd if=/dev/zero would clean out everything including sector 1. > > > I see the flashing lights like it is writing to the CF card but > > nothing changes. > > > > More suggestions welcome. These are quite expensive CF cards. > > The dd/fdisk and gpart results show the same problem, so it likely > isn't in the partitioning. > > Do both cards report the same size? Yes..sort of 28, 29 MB > > I found recently that there is some oddness with certain Sandisk > flash memory that made it non-responsive to anything. FreeBSD > couldn't do a thing with it. Before throwing it away, I tried it on > a Windows Vista system... which recognized and formatted it without a > complaint. Now it works on everything. Special vendor-specific code > in Windows? XP Pro shows and error that the disk cannot be formatted. I tried it in the wifes Windows 7 and it shows no drive attached. > > Another option would be to attempt formatting the cards with a camera. I'll have to ask the camera owner if she tried that. OT. The last 2 times that I have sent replies to two list regarding this question, I have not seen it come through to me. Julian's relies as well as yours come through. Robert
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