Reference Table for ext4 and XFS Commands

XFS replaces ext4 as the default file system in CentOS 7. This table serves as a cross reference listing common file system manipulation tasks and any changes in these commands between ext4 and XFS.

Table 1. Reference Table for ext4 and XFS Commands
Task	ext4	XFS
Creating a file system	`mkfs.ext4`	`mkfs.xfs`
Mounting a file system	`mount`	`mount`
Resizing a file system	`resize2fs`	`xfs_growfs` ^[1]
Repairing a file system	`e2fsck`	`xfs_repair`
Changing the label on a file system	`e2label`	`xfs_admin -L`
Reporting on disk space and file usage	`quota`	`quota`
Debugging a file system	`debugfs`	`xfs_db`
Saving critical file system metadata to a file	`e2image`	`xfs_metadump`

1. The size of XFS file systems cannot be reduced; the command is used only to increase the size.