man: document fs types known to makefs

diff --git a/man/systemd-makefs@.service.xml b/man/systemd-makefs@.service.xml
index 5ea200cc5cce4fee47cfb1acc41116195a0a111e..59c1a14394dc0f408efa1862ccacd14edc436ae6 100644 (file)
--- a/man/systemd-makefs@.service.xml
+++ b/man/systemd-makefs@.service.xml
@@ -52,7 +52,12 @@
     systems and swap devices, and after checking that the block device does not already
     contain a file system or other content, it will execute binaries specific to
     each filesystem type (<filename>/sbin/mkfs.<replaceable>type</replaceable></filename>
-    or <filename>/sbin/mkswap</filename>).</para>
+    or <filename>/sbin/mkswap</filename>). For certain file system types (currently
+    ext2/ext3/<citerefentry project='man-pages'><refentrytitle>ext4</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+    <citerefentry project='url'><refentrytitle url='https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs(5)'>btrfs</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+    <citerefentry project='man-pages'><refentrytitle>xfs</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+    f2fs, vfat) and for swap devices, it will configure reasonable defaults and set
+    the file system label and UUID based on the device name.</para>
 
     <para><filename>systemd-growfs</filename> knows very little about specific file
     systems and swap devices, and will instruct the kernel to grow the mounted