none auto ext2 ext3 ext4 ufs iso9660 udf gfs gfs2 vfat hfs+ xfs raw dir bochs cloop cow dmg iso qcow qcow2 vmdk vpc [a-zA-Z0-9_\+\-\.]+ [0-9]+ /[a-zA-Z0-9_\+\-\./%]+ [kKmMgGtTpPyYzZ] [a-fA-F0-9]{32} [a-fA-F0-9]{8}\-([a-fA-F0-9]{4}\-){3}[a-fA-F0-9]{12}