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+# badblocks
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+
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+> Search a device for bad blocks.
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+> Some usages of badblocks can cause destructive actions, such as erasing all the data on a disk, including the partition table.
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+
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+- Search a disk for bad blocks by using a non-destructive read-only test:
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+
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+`sudo badblocks {{/dev/sda}}`
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+
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+- Search an unmounted disk for bad blocks with a non-destructive read-write test:
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+
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+`sudo badblocks -n {{/dev/sda}}`
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+
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+- Search an unmounted disk for bad blocks with a destructive write test:
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+
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+`sudo badblocks -w {{/dev/sda}}`
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