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syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
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# tune2fs

> Adjust parameters of an ext2, ext3, or ext4 filesystem.
> May be used on mounted filesystems.
> More information: <https://manned.org/tune2fs>.

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

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

- Set the filesystem label to `MY_LABEL`:

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

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

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

- Enable journaling for a filesystem:

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

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

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