The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
The mkfs command build a file system on a block device:
#mkfs[options]device
mkfs is a front end for builder utilities in
/sbin such as mkfs.ext4. You
can use either the mkfs command with the
-t fstype option or
the builder utility to specify the type of file system to build.
For example, the following commands are equivalent ways of
creating an ext4 file system with the label
Projects on the device
/dev/sdb1:
#mkfs -t ext4 -L Projects /dev/sdb1#mkfs.ext4 -L Projects /dev/sdb1
If you do not specify the file system type to
makefs , it creates an ext2
file system.
To display the type of a file system, use the blkid command:
# blkid /dev/sdb1
/dev/sdb1: UUID="ad8113d7-b279-4da8-b6e4-cfba045f66ff" TYPE="ext4" LABEL="Projects"The blkid command also display information about the device such as its UUID and label.
Each file system type supports a number of features that you can
enable or disable by specifying additional options to
mkfs or the build utility. For example, you can
use the -J option to specify the size and
location of the journal used by the ext3 and
ext4 file system types.
For more information, see the blkid(8),
mkfs(8), and
mkfs.
manual pages.
fstype(8)