The post How to Resize ext4 Partitions and Filesystems in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .resize2fs is the tool that lets an ext4 filesystem use the extra space you’ve added to a partition. Without it,The post How to Resize ext4 Partitions and Filesystems in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.