diff --git a/SOURCES/kdump.conf.5 b/SOURCES/kdump.conf.5
index ce23dea..ae076df 100644
--- a/SOURCES/kdump.conf.5
+++ b/SOURCES/kdump.conf.5
@@ -118,8 +118,11 @@ All files under /etc/kdump/post.d are collectively sorted
 and executed in lexical order, before binary or script
 specified kdump_post parameter is executed.
 .PP
-Note that scripts written for use with this directive must use
-the /bin/bash interpreter.
+Note that scripts written for use with this directive must use the /bin/bash
+interpreter. And since these scripts run in kdump enviroment, the reference to
+the storage or network device in the scripts should adhere to the section
+\'Supported dump target types and requirements\' in kexec-kdump-howto.txt.
+
 .RE
 
 .B kdump_pre <binary | script>
@@ -139,8 +142,11 @@ kdump_pre parameter is executed.
 Even if the binary or script in /etc/kdump/pre.d directory
 returns non 0 exit status, the processing is continued.
 .PP
-Note that scripts written for this directive must use
-the /bin/bash interpreter.
+Note that scripts written for use with this directive must use the /bin/bash
+interpreter. And since these scripts run in kdump enviroment, the reference to
+the storage or network device in the scripts should adhere to the section
+\'Supported dump target types and requirements\' in kexec-kdump-howto.txt.
+
 .RE
 
 .B extra_bins <binaries | shell scripts>
diff --git a/SOURCES/kexec-kdump-howto.txt b/SOURCES/kexec-kdump-howto.txt
index 47e11c2..c39ca72 100644
--- a/SOURCES/kexec-kdump-howto.txt
+++ b/SOURCES/kexec-kdump-howto.txt
@@ -621,6 +621,9 @@ If /etc/kdump/post.d directory exist, All files in the directory are
 collectively sorted and executed in lexical order, before binary or script
 specified kdump_post parameter is executed.
 
+In these scripts, the reference to the storage or network device should adhere
+to the section 'Supported dump target types and requirements'
+
 Kdump Pre-Capture Executable
 ----------------------------
 
@@ -634,6 +637,9 @@ kdump_pre parameter is executed.
 Even if the binary or script in /etc/kdump/pre.d directory returns non 0
 exit status, the processing is continued.
 
+In these scripts, the reference to the storage or network device should adhere
+to the section 'Supported dump target types and requirements'
+
 Extra Binaries
 --------------
 
diff --git a/SPECS/kexec-tools.spec b/SPECS/kexec-tools.spec
index f6fcbb6..8c12a54 100644
--- a/SPECS/kexec-tools.spec
+++ b/SPECS/kexec-tools.spec
@@ -1,6 +1,6 @@
 Name: kexec-tools
 Version: 2.0.20
-Release: 61%{?dist}
+Release: 63%{?dist}
 License: GPLv2
 Group: Applications/System
 Summary: The kexec/kdump userspace component
@@ -417,6 +417,12 @@ done
 %endif
 
 %changelog
+* Fri Nov 19 2021 Pingfan Liu <piliu@redhat.com> - 2.0.20-63
+- Document/kexec-kdump-howto.txt: fix escape
+
+* Wed Nov 17 2021 Pingfan Liu <piliu@redhat.com> - 2.0.20-62
+- Document/kexec-kdump-howto.txt: improve notes for kdump_pre  and kdump_post scripts
+
 * Tue Nov  9 2021 Pingfan Liu <piliu@redhat.com> - 2.0.20-61
 - rebase makedumpfile to 1.7.0