Changeset 7546d8b for chapter07

Timestamp:

11/21/2023 12:45:26 AM (8 months ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

xry111/clfs-ng

Children:

e49e2ea

Parents:

2df066c9 (diff), 01247ac (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge remote-tracking branch 'origin/trunk' into xry111/clfs-ng

Location:

chapter07

Files:

• chroot.xml (modified) (2 diffs)
• createfiles.xml (modified) (1 diff)

chapter07/chroot.xml

@@ -47 +47 @@
     PS1='(lfs) \u:\w\$ '        \
     PATH=/usr/bin:/usr/sbin     \
+    MAKEFLAGS="-j<replaceable>$(nproc)</replaceable>"      \
+    TESTSUITEFLAGS="-j<replaceable>$(nproc)</replaceable>" \
     /bin/bash --login</userinput></screen>
 
     <para>The command replace the current shell process with a new shell
     process, with controlling terminal set up.</para>
+
+  <para>
+    If you don't want to use all available logical cores, replace
+    <replaceable>$(nproc)</replaceable> with the number of logical cores you
+    want to use for building packages in this chapter and the following
+    chapters.  The test suites of some packages (notably Autoconf, Libtool,
+    and Tar) in &ch-final; are not affected by <envar>MAKEFLAGS</envar>, they
+    use a <envar>TESTSUITEFLAGS</envar> environment variable instead. We
+    set that here as well for running these test suites with multiple cores.
+  </para>
 
   <para>The <parameter>-i</parameter> option given to the <command>env</command>
@@ -67 +79 @@
   used.</para>
 
-  <para>Note that the <command>bash</command> prompt will say
+  <para>Also note that the <command>bash</command> prompt will say
   <computeroutput>I have no name!</computeroutput> This is normal because the
   <filename>/etc/passwd</filename> file has not been created yet.</para>

chapter07/createfiles.xml

@@ -216 +216 @@
   the bad login attempts.</para>
 
-  <note><para>The <filename>/run/utmp</filename> file records the users that
-  are currently logged in.  This file is created dynamically in the boot
-  scripts.</para></note>
+  <!-- systemd no longer creates this -->
+  <note revision='sysv'><para>The <filename>/run/utmp</filename> file
+  records the users that are currently logged in.  This file is created
+  dynamically in the boot scripts.</para></note>
+
+  <!-- AFAIK they are not vital for system function, users requiring such
+       info should rely on systemd-logind or elogind or some custom PAM
+       module.  Maybe we can stop to create them at all.  -->
+  <note>
+    <para>
+      The <phrase revision='sysv'><filename>utmp</filename>,
+      </phrase><filename>wtmp</filename>, <filename>btmp</filename>, and
+      <filename>lastlog</filename> files use 32-bit integers for timestamps
+      and they'll be fundamentally broken after year 2038.  Many packages
+      have stopped using them and other packages are going to stop using
+      them.  It is probably best to consider them deprecated.
+    </para>
+  </note>
 
 </sect1>