# f3fix > Edit the partition table of a fake flash drive. > See also: `f3probe`, `f3write`, `f3read`. > More information: . - Fill a fake flash drive with a single partition that matches its real capacity: `sudo f3fix {{/dev/device_name}}` - Mark the partition as bootable: `sudo f3fix --boot {{/dev/device_name}}` - Specify the filesystem: `sudo f3fix --fs-type={{filesystem_type}} {{/dev/device_name}}`