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Merged
merged 2 commits into from
Oct 31, 2025
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tune2fs: update page #19071

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3ccad32
tune2fs: add UUID example and sudo
dmmqz Oct 27, 2025
4e2882f
tune2fs: fix placeholder and command
dmmqz Oct 27, 2025
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12 changes: 8 additions & 4 deletions pages/linux/tune2fs.md
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Expand Up @@ -6,16 +6,20 @@

- Set the max number of counts before a filesystem is checked to 2:

`tune2fs -c 2 {{/dev/sdXN}}`
`sudo tune2fs -c 2 {{/dev/sdXN}}`

- Set the filesystem label to MY_LABEL:

`tune2fs -L 'MY_LABEL' {{/dev/sdXN}}`
`sudo tune2fs -L 'MY_LABEL' {{/dev/sdXN}}`

- Enable discard and user-specified extended attributes for a filesystem:

`tune2fs -o {{discard,user_xattr}} {{/dev/sdXN}}`
`sudo tune2fs -o discard,user_xattr {{/dev/sdXN}}`

- Enable journaling for a filesystem:

`tune2fs -o ^{{nobarrier}} {{/dev/sdXN}}`
`sudo tune2fs -o has_journal {{/dev/sdXN}}`

- Assign a new randomly-generated UUID to a filesystem:

`sudo tune2fs -U random {{/dev/sdXN}}`