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On Saturday 14 Mar 2015 00:24:30 Mick wrote: |
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> On Friday 13 Mar 2015 22:24:32 Neil Bothwick wrote: |
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> > On Fri, 13 Mar 2015 17:54:01 +0000 (UTC), Grant Edwards wrote: |
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> > > IIRC, there are ebuilds for ddrescue, photorec, and testdisk. |
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> > |
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> > There's also app-cdr/dvdisaster. |
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> |
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> Thank you all. dd and ddrescue don't work, because the block device is not |
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> recognised. I had already tried this with not success. |
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> |
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> dvddisaster requires to have created a file with error correction ("ecc") |
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> data in advance of the hardware failure, then use that to recover the lost |
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> bits. |
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> |
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> readcd is great - thanks Joerg! However, this is what I got in my first |
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> attempt: |
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> ================================================================= |
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[snip ...] |
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|
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> ================================================================= |
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> |
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> Does this above mean that the first sector is damaged? How to proceed from |
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> here? |
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|
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I tried various options and I invariably end up with a sector 0 error: |
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|
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Enter selection: 9 (0 - 20)/<cr>:11 |
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Capacity: 250000 Blocks = 500000 kBytes = 488 MBytes = 512 prMB |
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Sectorsize: 2048 Bytes |
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Ignore disk size? yes |
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Copy from SCSI (0,0,0) disk to file |
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Enter filename [disk.out]: disk5.out |
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Enter starting sector for copy: 0 (0 - 9999999)/<cr>: |
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Enter number of sectors to copy: 10000000 (1 - 10000000)/<cr>: |
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Enter number of sectors per copy: 64 (1 - 64)/<cr>: |
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end: 10000000 |
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readcd: Input/output error. read_g1: scsi sendcmd: no error |
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CDB: 28 00 00 00 00 00 00 00 40 00 |
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status: 0x2 (CHECK CONDITION) |
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Sense Bytes: 70 00 03 00 00 00 00 12 00 00 00 00 11 00 00 00 |
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Sense Key: 0x3 Medium Error, Segment 0 |
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Sense Code: 0x11 Qual 0x00 (unrecovered read error) Fru 0x0 |
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Sense flags: Blk 0 (not valid) |
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cmd finished after 1.964s timeout 40s |
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readcd: Input/output error. Cannot read source disk |
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readcd: Retrying from sector 0. |
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.~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~- |
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~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~ |
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readcd: Input/output error. Error on sector 0 not corrected. Total of 1 |
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errors. |
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|
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The resultant disk5.out is 0 bytes. Even when I try to start from sector 1 or |
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2, I end up with 0 byte output file. Any other settings I could try? |
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|
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-- |
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Regards, |
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Mick |
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