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tldr/pages/common/badblocks.md
Vitor Henrique 814e511bae
pages*: add missing mnemonics (part 1) (#12143) 
* pages*: add missing mnemonics

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Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
2024-02-09 20:04:08 +05:30

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badblocks

Search a device for bad blocks. Some usages of badblocks can cause destructive actions, such as erasing all data on a disk, including the partition table. More information: https://manned.org/badblocks.

  • Search a disk for bad blocks by using a non-destructive read-only test:

sudo badblocks {{/dev/sdX}}

  • Search an unmounted disk for bad blocks with a [n]on-destructive read-write test:

sudo badblocks -n {{/dev/sdX}}

  • Search an unmounted disk for bad blocks with a destructive [w]rite test:

sudo badblocks -w {{/dev/sdX}}

  • Use the destructive [w]rite test and [s]how [v]erbose progress:

sudo badblocks -svw {{/dev/sdX}}

  • In destructive mode, [o]utput found blocks to a file:

sudo badblocks -o {{path/to/file}} -w {{/dev/sdX}}

  • Use the destructive mode with improved speed using 4K [b]lock size and 64K block [c]ount:

sudo badblocks -w -b {{4096}} -c {{65536}} {{/dev/sdX}}