Date: Tue, 14 Aug 2007 14:08:23 -0400 From: Jerry McAllister <jerrymc@msu.edu> To: Simon Gao <gao@schrodinger.com> Cc: Jerry McAllister <jerrymc@msu.edu>, questions@freebsd.org Subject: Re: Can't fdisk newly installed disks Message-ID: <20070814180823.GB9310@gizmo.acns.msu.edu> In-Reply-To: <46C14C88.8050409@schrodinger.com> References: <46C0F96C.3060600@schrodinger.com> <20070814014705.GE5613@gizmo.acns.msu.edu> <46C14C88.8050409@schrodinger.com>
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On Mon, Aug 13, 2007 at 11:32:40PM -0700, Simon Gao wrote: > Jerry McAllister wrote: > > On Mon, Aug 13, 2007 at 05:38:04PM -0700, Simon Gao wrote: > > > > > >> Hi, > >> > >> I am running into some problem with fdisk newly installed drives. > >> > >> >From boot message, these drives are found without problem: > >> > >> da3 at mpt0 bus 0 target 2 lun 0 > >> da3: <IFT A12U-G2421 347D> Fixed Direct Access SCSI-3 device > >> da3: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged > >> Queueing Enabled > >> da3: 2048000MB (4194304000 512 byte sectors: 255H 63S/T 261083C) > >> da4 at mpt0 bus 0 target 2 lun 1 > >> da4: <IFT A12U-G2421 347D> Fixed Direct Access SCSI-3 device > >> da4: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged > >> Queueing Enabled > >> da4: 2048000MB (4194304000 512 byte sectors: 255H 63S/T 261083C) > >> da5 at mpt0 bus 0 target 2 lun 2 > >> da5: <IFT A12U-G2421 347D> Fixed Direct Access SCSI-3 device > >> da5: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged > >> Queueing Enabled > >> da5: 670790MB (1373777920 512 byte sectors: 255H 63S/T 85513C) > >> > >> There are device files in /dev: > >> > >> crw-r----- 1 root operator 4, 14 Aug 13 17:14 /dev/da3 > >> crw-r----- 1 root operator 4, 15 Aug 13 17:14 /dev/da4 > >> crw-r----- 1 root operator 4, 16 Aug 13 17:14 /dev/da5 > >> > >> > >> However, when trying to fdisk one of drives, I got following error: > >> > >> # fdisk -BI da5 > >> fdisk: cannot open disk /dev/da5: No such file or directory > >> > >> sysintall failed also. > >> > >> The system runs FreeBSD 5.2.1-RELEASE. > >> > >> Any help is appreciated. > >> > > > > Did you try doing a dd(1) if some blocks of zeros to the drive > > before doing the fdisk. On some older FreeBSD - don't remember > > which - I had trouble with some brands of SCSI disks and writing > > some zeros to it seemed to make it work. I don't know why or even > > why I first tried it. But it is simple enough to be worth giving > > it a try to see if anything improves. > > > > dd if=/devf/zero of=/dev/da5 bs=512 count=1024 > > > > ////jerry > > > > > This is what I got: > > # dd if=/dev/zero of=/dev/da5 bs=512 count=1024 > dd: /dev/da5: Operation not permitted > OK. sorry that didn't help. > If I use sysinstall --> config --> fdisk to partition /dev/da5, I got > following warning: > > > WARNING: A geometry of 85513/255/63 for da5 is incorrect. Using ??? > ???a more likely geometry. If this geometry is incorrect or you ??? > ???are unsure as to whether or not it's correct, please consult ??? > ???the Hardware Guide in the Documentation submenu or use the ??? > ???(G)eometry command to change it now. ??? > ??? ??? > ???Remember: you need to enter whatever your BIOS thinks the ??? > ???geometry is! For IDE, it's what you were told in the BIOS ??? > ???setup. For SCSI, it's the translation mode your controller is ??? > ???using. Do NOT use a ``physical geometry''. > > > The cylinder, heads and sectors match what's found during boot up. > > Simon > I am sure it has nothing to do with those geometry messages. I always get them and never have had to do anything about it. So, back to square n where n=don't know. Hopefully someone else will have something useful to say. ////jerry
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