Inspect features, UUID, mount count, and reserved blocks.
Section: Format, Label, and Tune
Show ext filesystem metadata
bash
bash
sudo tune2fs -l /dev/sdb1Explanation
Inspect features, UUID, mount count, and reserved blocks.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Format, Label, and Tune
Change reserved blocks percentage
Lower reserved space on large non-root data volumes.
Set an ext filesystem label
Assign a human-readable label to an ext filesystem.
Dump ext filesystem superblock info
Show ext superblock and journal settings.