newfs_v7fs —
construct a new 7th Edition(V7) File System
  
    | newfs_v7fs | [ -FZ] [-Bbyte-order] [-ninodes] [-ssectors] [-Vverbose] special | 
newfs_v7fs builds a 7th Edition(V7) file system on the
  specified special. If it is a device, the size
  information will be taken from the disk label and before running
  newfs_v7fs the disk must be labeled using
  disklabel(8); the proper
  fstype is “Version 7”. Otherwise, the size must be specified on
  the command line. V7 filesystem's block size and sector size are 512 byte.
  Disk address limits are 24 bit.
The following arguments are supported:
  - -Bbyte-order
- Specify the metadata byte order of the file system to be created. Valid
      byte orders are ‘be’, ‘le’, and
      ‘pdp’. If no byte order is specified, the file system is
      created in host byte order.
- -F
- Create file system to a regular file (needs the -soption).
- -ninodes
- This specifies the number of inodes for the filesystem. If the number of
      inodes exceeds 65536, it is reduced to 65536.
- -ssectors
- Create file system with specified number of disk sectors.
- -Vverbose
- This controls the amount of information written to stdout:
    
    
      - 0
- No output.
- 1
- Overall size, ilist size, endian and filename length.
- 2
- A progress bar.
- 3
-  
- 4
- More verbose message.
 
 The default is 3.
- -Z
- Fill file with zeroes instead of creating a sparse file.
Anewfs_v7fs utility appeared in NetBSD
  6.0.