Date: Thu, 24 Nov 2011 13:45:37 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Robert <traveling08@cox.net> Cc: "Julian H. Stacey" <jhs@berklix.com>, questions@freebsd.org Subject: Re: Invalid fdisk partition table found (fwd) Message-ID: <alpine.BSF.2.00.1111241326490.69990@wonkity.com> In-Reply-To: <20111124113938.2d99eec2@dell64> References: <201111241116.pAOBGH4i098240@fire.js.berklix.net> <20111124113938.2d99eec2@dell64>
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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. > 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? 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? Another option would be to attempt formatting the cards with a camera.
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