From 01247ac90a16aa37dc31dec1d743d77d09194234 Mon Sep 17 00:00:00 2001
From: Xi Ruoyao <xry111@xry111.site>
Date: Mon, 20 Nov 2023 07:18:26 +0800
Subject: kernfs: Revise command creating the link target in case /dev/shm is a
 symlink

When /dev/shm is a symlink we need to create its target or some tests
will fail and Python 3 will be misconfigured.  We wrote it as:

    mkdir -pv $LFS/$(readlink $LFS/dev/shm)

But if $LFS/dev/shm is a relative symlink (say ../run/shm), we end up:

    mkdir -pv /mnt/lfs/../run/shm

This command will create /mnt/run/shm, not $LFS/mnt/shm as we expected.
Twist it a little to make it work for both absolute symlinks and
relative symlinks.
---
 chapter07/kernfs.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chapter07/kernfs.xml b/chapter07/kernfs.xml
index 4757b257d..049f6e804 100644
--- a/chapter07/kernfs.xml
+++ b/chapter07/kernfs.xml
@@ -107,7 +107,7 @@ mount -vt tmpfs tmpfs $LFS/run</userinput></screen>
       we must explicitly mount a tmpfs:</para>
 
 <screen><userinput>if [ -h $LFS/dev/shm ]; then
-  mkdir -pv $LFS/$(readlink $LFS/dev/shm)
+  (cd $LFS/dev; mkdir $(readlink shm))
 else
   mount -vt tmpfs -o nosuid,nodev tmpfs $LFS/dev/shm
 fi</userinput></screen>
-- 
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