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C.4.5. Create filesystems on the mapped device, or continue to build complex storage structures using the mapped device

Use the mapped device node (/dev/mapper/<name>) as any other block device. To create an ext2 filesystem on the mapped device, use the following command: 
mke2fs /dev/mapper/<name>
To mount this filesystem on /mnt/test, use the following command:

Important

The directory /mnt/test must exist before executing this command. 
mount /dev/mapper/<name> /mnt/test