2025-03-14 21:59:59 -06:00
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# tune2fs
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> Adjust parameters of an ext2, ext3 or ext4 filesystem.
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> May be used on mounted filesystems.
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> More information: <https://manned.org/tune2fs>.
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- Set the max number of counts before a filesystem is checked to 2:
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2025-12-16 10:20:31 -07:00
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`sudo tune2fs -c 2 {{/dev/sdXN}}`
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2025-03-14 21:59:59 -06:00
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- Set the filesystem label to MY_LABEL:
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2025-12-16 10:20:31 -07:00
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`sudo tune2fs -L 'MY_LABEL' {{/dev/sdXN}}`
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2025-03-14 21:59:59 -06:00
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- Enable discard and user-specified extended attributes for a filesystem:
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2025-12-16 10:20:31 -07:00
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`sudo tune2fs -o discard,user_xattr {{/dev/sdXN}}`
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2025-03-14 21:59:59 -06:00
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- Enable journaling for a filesystem:
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2025-12-16 10:20:31 -07:00
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`sudo tune2fs -o has_journal {{/dev/sdXN}}`
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- Assign a new randomly-generated UUID to a filesystem:
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`sudo tune2fs -U random {{/dev/sdXN}}`
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