2017-12-18 12:15:55 +00:00
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# fsck
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> Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run.
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> It is a wrapper that calls `fsck_hfs`, `fsck_apfs`, `fsck_msdos`, `fsck_exfat`, and `fsck_udf` as needed.
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2021-08-23 20:33:24 +01:00
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> More information: <https://ss64.com/osx/fsck.html>.
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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- Check filesystem `/dev/sdX`, reporting any damaged blocks:
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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`fsck {{/dev/sdX}}`
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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- Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and interactively letting the user choose to repair each one:
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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`fsck -f {{/dev/sdX}}`
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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- Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and automatically repairing them:
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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`fsck -fy {{/dev/sdX}}`
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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- Check filesystem `/dev/sdX`, reporting whether it has been cleanly unmounted:
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2017-12-18 12:15:55 +00:00
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2020-10-29 11:21:45 +00:00
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`fsck -q {{/dev/sdX}}`
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