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From: Warner Losh <imp@FreeBSD.org>
Date: Wed, 20 Dec 2017 16:02:11 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r327027 - head/sbin/reboot
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Author: imp
Date: Wed Dec 20 16:02:11 2017
New Revision: 327027
URL: https://svnweb.freebsd.org/changeset/base/327027

Log:
  Flesh out the reason for the need for tmpfs a little.
  
  Sponsored by: Netflix

Modified:
  head/sbin/reboot/reboot.8

Modified: head/sbin/reboot/reboot.8
==============================================================================
--- head/sbin/reboot/reboot.8	Wed Dec 20 15:50:21 2017	(r327026)
+++ head/sbin/reboot/reboot.8	Wed Dec 20 16:02:11 2017	(r327027)
@@ -144,7 +144,10 @@ After changing vfs.root.mountfrom with
 can be used to change the root filesystem while preserving kernel state.
 This requires the
 .Xr tmpfs 5
-kernel module to be loaded.
+kernel module to be loaded because
+.Xr init 8
+needs a place to store itself after the old root is unmounted, but
+before the new root is in place.
 .El
 .Pp
 The