cryptsetup: update page; cryptsetup-{open,luksformat}: add page (#14153)

pages/linux/cryptsetup-luksformat.md

@@ -0,0 +1,17 @@
+# cryptsetup luksFormat
+
+> Initialize a LUKS partition and the initial key slot (0) with a passphrase or keyfile.
+> Note: this operation overwrites all data on the partition.
+> More information: <https://manned.org/cryptsetup-luksFormat>.
+
+- Initialize a LUKS volume with a passphrase:
+
+`cryptsetup luksFormat {{/dev/sdXY}}`
+
+- Initialize a LUKS volume with a keyfile:
+
+`crypsetup luksFormat {{/dev/sdXY}} {{path/to/keyfile}}`
+
+- Initialize a LUKS volume with a passphrase and set its label:
+
+`cryptsetup luksFormat --label {{label}} {{/dev/sdXY}}`