Date: Sun, 24 Jun 2012 12:22:29 +0100 From: maxim naumov <muxx.mailinglists@gmail.com> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-usb@freebsd.org Subject: Re: Seagate FreeAgent GoFlex 1.5TB external HDD problems Message-ID: <CAGG2AkL0G3GP8Vh_P4_q-mNvTvaZvsoEHeR%2BJdmAZRfGMde40g@mail.gmail.com> In-Reply-To: <201206241128.36540.hselasky@c2i.net> References: <CAGG2Ak%2BXmWvCb3PQoqPXAW7iC0PAQ=GNV79MhhGHjLO4GmWgdw@mail.gmail.com> <201206231551.21894.hselasky@c2i.net> <CAGG2AkLS_AqzWOSrMgkoBzq=9KAfXCr_1yY0yq3J6h5TqT9GwQ@mail.gmail.com> <201206241128.36540.hselasky@c2i.net>
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On Sun, Jun 24, 2012 at 10:28 AM, Hans Petter Selasky <hselasky@c2i.net> wrote: > Here is a quick analysis: > ^^^^ LBA = 0x2FC2B95F00, COUNT=0x80 (64K) IIRC, LBA is a sector index. how can it be 0x2FC2B95F00 if the whole HDD has 0xAEA87B30 sectors? > dd if=/dev/daX of=/dev/null bs=512 iskip=205130391296 count=128 root@muxx:/home/muxx # dd if=/dev/da0 of=/dev/null bs=512 skip=205130391296 count=128 dd: /dev/da0: Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 0.000318 secs (0 bytes/sec) (no errors in logs) if 0x2FC2B95F00 is a byte address, root@muxx:/home/muxx # dd if=/dev/da0 of=/dev/null bs=512 skip=400645295 count=128 128+0 records in 128+0 records out 65536 bytes transferred in 0.062703 secs (1045183 bytes/sec) (no errors in logs) however, I don't see 0x2FC2B95F00 anywhere while dumping with usbdump. I am quite puzzled. I will try and write the whole partition with zeroes and large block size in the meantime. /maxOn Sun, Jun 24, 2012 at 10:28 AM, Hans Petter Selasky <hselasky@c2i.net> wrote: > Here is a quick analysis: > ^^^^ LBA = 0x2FC2B95F00, COUNT=0x80 (64K) IIRC, LBA is a sector index. how can it be 0x2FC2B95F00 if the whole HDD has 0xAEA87B30 sectors? > dd if=/dev/daX of=/dev/null bs=512 iskip=205130391296 count=128 root@muxx:/home/muxx # dd if=/dev/da0 of=/dev/null bs=512 skip=205130391296 count=128 dd: /dev/da0: Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 0.000318 secs (0 bytes/sec) (no errors in logs) if 0x2FC2B95F00 is a byte address, root@muxx:/home/muxx # dd if=/dev/da0 of=/dev/null bs=512 skip=400645295 count=128 128+0 records in 128+0 records out 65536 bytes transferred in 0.062703 secs (1045183 bytes/sec) (no errors in logs) however, I don't see 0x2FC2B95F00 anywhere while dumping with usbdump. I am quite puzzled. I will try and write the whole partition with zeroes and large block size in the meantime. /max
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