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    Error on install yet live cd works fine.

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    16 Posts 3 Posters 2.8k Views
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    • W Offline
      Wuebit
      last edited by

      @kejianshi:

      Never seen that but it sure is going an about partitions.
      I wounder if a disk wipe would fix that?

      Well I wiped the drive on my windows netbook. Deleted the partition and still got the same error.

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      • KOMK Offline
        KOM
        last edited by

        Did you see this when your searched the forums?

        https://forum.pfsense.org/index.php?topic=25112.0

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        • W Offline
          Wuebit
          last edited by

          @KOM:

          Did you see this when your searched the forums?

          https://forum.pfsense.org/index.php?topic=25112.0

          No I didn't find this one on my (so far 5 hours searching)
          Thanks ill have a look

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          • W Offline
            Wuebit
            last edited by

            @Wuebit:

            @KOM:

            Did you see this when your searched the forums?

            https://forum.pfsense.org/index.php?topic=25112.0

            No I didn't find this one on my (so far 5 hours searching)
            Thanks ill have a look

            Hi I did what jimp said

            dd if=/dev/zero of=/dev/ad0 bs=8k count=16

            fdisk -I ad0

            but the fdisk part gives me this error

            fdisk: invalid fdisk partition table found.

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            • KOMK Offline
              KOM
              last edited by

              If you have existing GPT partitions then you will have to zero out either the entire disk or at least the beginning and end.

              Run fdisk by itself and see your sector count (let's call it sector_count).  It will be shown on a line that looks like this:

              # fdisk
              The data for partition 1 is:
              sysid 165 (0xa5), (FreeBSD/NetBSD/386BSD)
              start 63, size 83875302 (40954 Meg), flag 80 (active)

              size is the same as sector_count

              Now run the dd commands like this:

              dd if=/dev/zero of=/dev/ad0 bs=1M count=2

              dd if=/dev/zero of=/dev/ad0 bs=1M skip=(sector_count - 2)

              To use the fdisk example above, to wipe the end of the disk try:

              dd if=/dev/zero of=/dev/ad0 bs=1M skip=83875300

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              • W Offline
                Wuebit
                last edited by

                @KOM:

                If you have existing GPT partitions then you will have to zero out either the entire disk or at least the beginning and end.

                Run fdisk by itself and see your sector count (let's call it sector_count).  It will be shown on a line that looks like this:

                # fdisk
                The data for partition 1 is:
                sysid 165 (0xa5), (FreeBSD/NetBSD/386BSD)
                start 63, size 83875302 (40954 Meg), flag 80 (active)

                size is the same as sector_count

                Now run the dd commands like this:

                dd if=/dev/zero of=/dev/ad0 bs=1M count=2

                dd if=/dev/zero of=/dev/ad0 bs=1M skip=(sector_count - 2)

                To use the fdisk example above, to wipe the end of the disk try:

                dd if=/dev/zero of=/dev/ad0 bs=1M skip=83875300

                Many many thanks
                I'm stuck on the very first part
                just "fdisk" gives me this
                fdisk: mounted root fs resource doesn't match expectations (regexec returned 1)

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                • KOMK Offline
                  KOM
                  last edited by

                  Well, you can do one of four things:

                  • Wipe the entire disk.  This can take some time if the disk is big.

                  • Use the gpart command from pfSense Shell to list and remove any GPT partitions

                  • Download a partition manager like GParted (http://gparted.org/) and boot from it to wipe your disk

                  • Based on the size of your disk, take an educated guess as to how many sectors it has (use my example above where a 40 GB hard disk has 83875302 sectors), and then tailor your dd command to use skip=(guessed_sectors - 2)

                  I'd go with #2

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                  • W Offline
                    Wuebit
                    last edited by

                    @KOM:

                    Well, you can do one of four things:

                    • Wipe the entire disk.  This can take some time if the disk is big.

                    • Use the gpart command from pfSense Shell to list and remove any GPT partitions

                    • Download a partition manager like GParted (http://gparted.org/) and boot from it to wipe your disk

                    • Based on the size of your disk, take an educated guess as to how many sectors it has (use my example above where a 40 GB hard disk has 83875302 sectors), and then tailor your dd command to use skip=(guessed_sectors - 2)

                    I'd go with #2

                    its 320GB (an old laptop hdd)
                    I'm mega new to linux based commands so would 2 be hard for me?

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                    • W Offline
                      Wuebit
                      last edited by

                      edit that I guess one of them commands worked it installed perfect this time! cheers for all the help!

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                      • KOMK Offline
                        KOM
                        last edited by

                        Go to pfSense Shell, run gpart and follow the help to figure out how to list any GPT partitions and remove them.

                        Doing a dd on an entire 320 GB disk will take awhile.

                        You could try the following:

                        dd if=/dev/zero of=/dev/ad0 bs=1M count=2

                        dd if=/dev/zero of=/dev/ad0 bs=1M skip=671002414

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                        • KOMK Offline
                          KOM
                          last edited by

                          Glad to hear you got it working.

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                          • W Offline
                            Wuebit
                            last edited by

                            @KOM:

                            Glad to hear you got it working.

                            Thanks for the help KOM next step is to see if I can get a wifi running :) using this router!

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                            • K Offline
                              kejianshi
                              last edited by

                              So….  I wonder if wiping the drive would help (-;

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