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Chapter 10. Creating an XFS file system
As a system administrator, you can create an XFS file system on a block device to enable it to store files and directories.
10.1. Creating an XFS file system with mkfs.xfs
This procedure describes how to create an XFS file system on a block device.
Procedure
To create the file system:
If the device is a regular partition, an LVM volume, an MD volume, a disk, or a similar device, use the following command:
# mkfs.xfs block-device
-
Replace block-device with the path to the block device. For example,
/dev/sdb1
,/dev/disk/by-uuid/05e99ec8-def1-4a5e-8a9d-5945339ceb2a
, or/dev/my-volgroup/my-lv
. - In general, the default options are optimal for common use.
-
When using
mkfs.xfs
on a block device containing an existing file system, add the-f
option to overwrite that file system.
-
Replace block-device with the path to the block device. For example,
To create the file system on a hardware RAID device, check if the system correctly detects the stripe geometry of the device:
If the stripe geometry information is correct, no additional options are needed. Create the file system:
# mkfs.xfs block-device
If the information is incorrect, specify stripe geometry manually with the
su
andsw
parameters of the-d
option. Thesu
parameter specifies the RAID chunk size, and thesw
parameter specifies the number of data disks in the RAID device.For example:
# mkfs.xfs -d su=64k,sw=4 /dev/sda3
Use the following command to wait for the system to register the new device node:
# udevadm settle
Additional resources
-
mkfs.xfs(8)
man page.