66 lines
832 B
Plaintext
66 lines
832 B
Plaintext
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Command: diskcheck - check a disk for bad sectors
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Syntax: diskcheck device start count
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Flags: (none)
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Examples: diskcheck /dev/at0 0 1200 # Check 1.2 MB diskette
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diskcheck /dev/at0 100 50 # Check blocks 100 to 149
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Diskcheck checks a disk for bad sectors by reading in each sector,
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writing a known bit pattern onto it, reading it back in and comparing
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with what was written. This check is then done a second time. Bad
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sectors are reported. After each sector is tested, the original sector
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is restored. Only use this program on unmounted partitions. Killing it
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part way through may result in lost data.
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