newfs(8) on FreeBSD
The text 3f5d8d547ba9, as FreeBSD 5.1-RELEASE shipped it.
construct a new UFS1/UFS2 file system
Flags it lists
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-L -
-N -
-O -
-S -
-T -
-U -
-a -
-b -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-m -
-o -
-s