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 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 _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"