uname: DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #1: Fri Jul 10 02:56:28 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
cc: cc 8.3 [DragonFly] Release/2019-02-22
vfs.usermount: 0
vm.randomize_mmap: 0
kern version: DragonFly 6.5-DEVELOPMENT #1: Fri Jul 10 02:56:28 UTC 2026
mount of crafted image: /dev/vn0 on /mnt/test (ufs, read-only, nosuid, local)
--- newfs (UFS1 creator) ---
usage: newfs [ -fsoptions ] special-device [device-type]