37 lines
914 B
Markdown
37 lines
914 B
Markdown
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---
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tags: [disks, procedural, Linux]
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created: Saturday, April 26, 2025
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---
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# Repair disks with fsck
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Identify file system errors on a disk.
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Be sure to unmount the device beforehand.
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```sh
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sudo fsck.vfat -a /dev/sdf1
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```
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This will automatically apply repairs. An example output:
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```
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fsck.fat 4.2 (2021-01-31)
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There are differences between boot sector and its backup.
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This is mostly harmless. Differences: (offset:original/backup)
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65:01/00
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Not automatically fixing this.
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/.Trash-1000/files/retropie
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Start does point to root directory. Deleting dir.
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Reclaimed 312130 unused clusters (2556968960 bytes) in 1553 chains.
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Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
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Automatically removing dirty bit.
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Free cluster summary wrong (1516247 vs. really 1516241)
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Auto-correcting.
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*** Filesystem was changed ***
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Writing changes.
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/dev/sdf1: 1582 files, 396097/1912338 clusters
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```
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