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resize2fs Command - Resize ext2/ext3/ext4 Filesystems
The resize2fs command is used to resize ext2, ext3, or ext4 filesystems without data loss.
Syntax
resize2fs [options] device [size]
Examples
resize2fs /dev/sda1
Resize the filesystem on /dev/sda1 to its maximum size.
resize2fs /dev/sda1 10G
Resize the filesystem on /dev/sda1 to 10GB.
Notes
- resize2fs can be used on mounted filesystems if the kernel supports online resizing.
- For shrinking a filesystem, it is recommended to unmount it first.
- Always ensure you have a backup before resizing filesystems.
