diff --git a/docs/source/guides/admin-guides/references/man1/rinv.1.rst b/docs/source/guides/admin-guides/references/man1/rinv.1.rst
index a1e47f34f..c9764297c 100644
--- a/docs/source/guides/admin-guides/references/man1/rinv.1.rst
+++ b/docs/source/guides/admin-guides/references/man1/rinv.1.rst
@@ -152,7 +152,9 @@ Calling \ **rinv**\  for VMware will display the UUID/GUID, number of CPUs, amou
 
 \ **firm**\ 
  
- Retrieves firmware versions.
+ Retrieves firmware versions. For IBM and Lenovo System x systems managed through
+ IMM, ``UEFI Version`` reports the active firmware. If the IMM reports a pending
+ UEFI build ID, \ **rinv**\  reports it separately as ``Pending UEFI Build ID``.
  
 
 
diff --git a/xCAT-client/pods/man1/rinv.1.pod b/xCAT-client/pods/man1/rinv.1.pod
index 815c9a81a..112ec05e5 100644
--- a/xCAT-client/pods/man1/rinv.1.pod
+++ b/xCAT-client/pods/man1/rinv.1.pod
@@ -95,7 +95,9 @@ Retrieves serial number.
 
 =item B<firm>
 
-Retrieves firmware versions.
+Retrieves firmware versions. For IBM and Lenovo System x systems managed through
+IMM, C<UEFI Version> reports the active firmware. If the IMM reports a pending
+UEFI build ID, B<rinv> reports it separately as C<Pending UEFI Build ID>.
 
 =item B<deconfig>