[+] mounted base HAMMER fs at /mnt/df0869
[+] new-volume vnode: /dev/vn2 -> /root/df0869/newvol.img (1073741824 bytes)
[*] issuing HAMMERIOC_ADD_VOLUME on '/dev/vn2'
[*]     boot_area_size  = -1
[*]     memory_log_size = 0
[*]     vol_size        = 562949953421312 (~512 TiB, has bit 48 set)
[*] ioctl returned -1 (errno=79 'Inappropriate file type or format'); head.flags=0x0 head.error=0
RUN_EXIT=0