snippetbashTip
fsck — Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the
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thecommandrepairintegrityclifilesystemcheckfsck
macos
Problem
How to use the
fsck command: Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run. It is a wrapper that calls fsck_hfs, fsck_apfs, fsck_msdos, fsck_exfat, and fsck_udf as needed. More information: <https://keith.github.io/xcode-man-pages/fsck.8.html>.Solution
fsck — Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run. It is a wrapper that calls fsck_hfs, fsck_apfs, fsck_msdos, fsck_exfat, and fsck_udf as needed. More information: <https://keith.github.io/xcode-man-pages/fsck.8.html>.Check filesystem
/dev/sdX, reporting any damaged blocks:fsck {{/dev/sdX}}Check filesystem
/dev/sdX only if it is clean, reporting any damaged blocks and interactively letting the user choose to repair each one:fsck -f {{/dev/sdX}}Check filesystem
/dev/sdX only if it is clean, reporting any damaged blocks and automatically repairing them:fsck -fy {{/dev/sdX}}Check filesystem
/dev/sdX, reporting whether it has been cleanly unmounted:fsck -q {{/dev/sdX}}Code Snippets
Check filesystem `/dev/sdX`, reporting any damaged blocks
fsck {{/dev/sdX}}Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and interactively letting the user choose to repair each one
fsck -f {{/dev/sdX}}Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and automatically repairing them
fsck -fy {{/dev/sdX}}Check filesystem `/dev/sdX`, reporting whether it has been cleanly unmounted
fsck -q {{/dev/sdX}}Context
tldr-pages: osx/fsck
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