man/bootup: rename initrd to exitrd at one more place

Follow-up for f2c2fa87b6b7a7b3dcce9eeae8ce2a2ab50b60eb

diff --git a/man/bootup.xml b/man/bootup.xml
index c942bab34420dd014cc7f6ea5e05d3aa2b716b8f..db98f4649affb5e3e3714c94b2a0784fb10f98dc 100644 (file)
--- a/man/bootup.xml
+++ b/man/bootup.xml
@@ -46,11 +46,10 @@
     the root file system, which is then responsible for probing all remaining hardware, mounting all
     necessary file systems and spawning all configured services.</para>
 
-    <para>On shutdown, the system manager stops all services, unmounts
-    all file systems (detaching the storage technologies backing
-    them), and then (optionally) jumps back into the initrd code which
-    unmounts/detaches the root file system and the storage it resides
-    on. As a last step, the system is powered down.</para>
+    <para>On shutdown, the system manager stops all services, unmounts all non-busy file systems (detaching
+    the storage technologies backing them), and then (optionally) jumps into the exitrd, which is backed by
+    tmpfs, and unmounts/detaches the remaining file systems, including the real root. As a last step,
+    the system is powered down.</para>
 
     <para>Additional information about the system boot process may be
     found in