From 6e179a90255308dc64eec386fb3ae49ab16acca4 Mon Sep 17 00:00:00 2001
From: Xi Ruoyao <xry111@xry111.site>
Date: Sat, 27 Apr 2024 12:22:28 +0800
Subject: [PATCH] changingowner: Add --from lfs for chown root:root commands

So if the user has not set $LFS properly, chown will do nothing instead
of wreak havoc in the host distro.

--from <user> has been available for Coreutils chown since 2000 so we
don't need to raise the host system requirement.
---
 chapter07/changingowner.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chapter07/changingowner.xml b/chapter07/changingowner.xml
index 8f7b5519c..16c052b39 100644
--- a/chapter07/changingowner.xml
+++ b/chapter07/changingowner.xml
@@ -33,9 +33,9 @@
   user <systemitem class="username">root</systemitem> by running the following
   command:</para>
 
-<screen><userinput>chown -R root:root $LFS/{usr,lib,var,etc,bin,sbin,tools}
+<screen><userinput>chown --from lfs -R root:root $LFS/{usr,lib,var,etc,bin,sbin,tools}
 case $(uname -m) in
-  x86_64) chown -R root:root $LFS/lib64 ;;
+  x86_64) chown --from lfs -R root:root $LFS/lib64 ;;
 esac</userinput></screen>
 
 </sect1>