Merge pull request #26387 from bluca/swapon_util_linux

README/NEWS: note that we now explicitly require util-linux's swapon due to new option

2 files changed, 6 insertions, 2 deletions

diff --git a/NEWS b/NEWS
index 6df17aa599..0957198260 100644
--- a/NEWS
+++ b/NEWS
@@ -147,7 +147,9 @@ CHANGES WITH 253 in spe:
 
         * When enabling a swap device systemd will now reinitialize the device
           when the page size of the swap space does not match the page size of
-          the running kernel.
+          the running kernel. Note that this requires the 'swapon' utility to
+          provide the '--fixpgsz' option, as implemented by util-linux, and it
+          is not supported by busybox at the time of writing.
 
         * systemd now executes generator programs in a mount namespace
           "sandbox" with most of the file system read-only and write access
diff --git a/README b/README
index b12ad3f236..857cb38bf8 100644
--- a/README
+++ b/README
@@ -221,7 +221,9 @@ REQUIREMENTS:
         During runtime, you need the following additional
         dependencies:
 
-        util-linux >= v2.27.1 required
+        util-linux >= v2.27.1 required (including but not limited to: mount,
+                                        umount, swapon, swapoff, sulogin,
+                                        agetty, fsck)
         dbus >= 1.4.0 (strictly speaking optional, but recommended)
                 NOTE: If using dbus < 1.9.18, you should override the default
                 policy directory (--with-dbuspolicydir=/etc/dbus-1/system.d).