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   <H1>[Mageia-dev] [soft-commits] [2494] Port stage2 to use udev.</H1>
    <B>Thierry Vignaud</B> 
    <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20%5Bsoft-commits%5D%20%5B2494%5D%20Port%20stage2%20to%20use%20udev.&In-Reply-To=%3CCAONrEtZg1h2e0kFq5_EtxK%2BSz7dX%3DmVYf-JbHXsFojN6qBkW1A%40mail.gmail.com%3E"
       TITLE="[Mageia-dev] [soft-commits] [2494] Port stage2 to use udev.">thierry.vignaud at gmail.com
       </A><BR>
    <I>Tue Dec 20 12:07:33 CET 2011</I>
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<PRE>On 19 December 2011 23:47,  &lt;<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">root at mageia.org</A>&gt; wrote:
&gt;<i> Log Message
</I>&gt;<i>
</I>&gt;<i> Port stage2 to use udev.
</I>&gt;<i>
</I>&gt;<i> In order to run dracut in the installer, it is necessary to have a working
</I>&gt;<i> udev setup (specifically /dev/block/* nodes, but there may be other
</I>&gt;<i> requirements).
</I>&gt;<i>
</I>&gt;<i> As dracut is needed by systemd when /usr is on a separate partition, we need
</I>&gt;<i> udev in the installer in order to support systemd generally.
</I>&gt;<i>
</I>&gt;<i> Modified Paths
</I>&gt;<i>
</I>&gt;<i> drakx/trunk/perl-install/install/Makefile
</I>&gt;<i> drakx/trunk/perl-install/install/install2.pm
</I>&gt;<i> drakx/trunk/perl-install/install/share/list.xml
</I>&gt;<i>
</I>&gt;<i> Modified: drakx/trunk/perl-install/install/Makefile
</I>&gt;<i> ===================================================================
</I>&gt;<i> --- drakx/trunk/perl-install/install/Makefile	2011-12-19 21:36:04 UTC (rev
</I>&gt;<i> 2493)
</I>&gt;<i> +++ drakx/trunk/perl-install/install/Makefile	2011-12-19 22:47:15 UTC (rev
</I>&gt;<i> 2494)
</I>&gt;<i> @@ -47,6 +47,7 @@
</I>&gt;<i>
</I>&gt;<i>  get_needed_files: xs
</I>&gt;<i>  	REP4PMS=$(REP4PMS) ../../tools/install-xml-file-list share/list.xml
</I>&gt;<i> $(DEST)
</I>&gt;<i> +	mkdir -p $(DEST)/run
</I>
That won't work. stage2 is mounted by stage1 in /tmp/stage2
so you want to create &amp; include it in stage1

&gt;<i> Modified: drakx/trunk/perl-install/install/install2.pm
</I>&gt;<i> ===================================================================
</I>&gt;<i> --- drakx/trunk/perl-install/install/install2.pm	2011-12-19 21:36:04 UTC
</I>&gt;<i> (rev 2493)
</I>&gt;<i> +++ drakx/trunk/perl-install/install/install2.pm	2011-12-19 22:47:15 UTC
</I>&gt;<i> (rev 2494)
</I>&gt;<i> @@ -395,6 +395,24 @@
</I>&gt;<i>      eval { fs::mount::mount('none', '/sys', 'sysfs', 1) };
</I>&gt;<i>      eval { touch('/root/non-chrooted-marker.DrakX') }; #- helps
</I>&gt;<i> distinguishing /root and /mnt/root when we don't know if we are chrooted
</I>&gt;<i>
</I>&gt;<i> +    # Ensure /run is mounted
</I>&gt;<i> +    mkdir &quot;/run&quot;, 0755;
</I>&gt;<i> +    run_program::run(&quot;mount -t tmpfs -o mode=0755,nosuid,nodev tmpfs
</I>&gt;<i> /run&quot;);
</I>&gt;<i> +    mkdir &quot;/run/udev&quot;, 0755;
</I>&gt;<i> +    mkdir &quot;/run/udev/rules.d&quot;, 0755;
</I>&gt;<i> +    $ENV{UDEVRULESD} = &quot;/run/udev/rules.d&quot;;
</I>&gt;<i> +
</I>&gt;<i> +    # Start up udev and trigger cold plugs
</I>&gt;<i> +    run_program::run(&quot;mount&quot;, &quot;-t&quot;, &quot;devtmpfs&quot;, &quot;-o&quot;, &quot;mode=0755,nosuid&quot;,
</I>&gt;<i> &quot;devtmpfs&quot;, &quot;/dev&quot;);
</I>&gt;<i> +    mkdir &quot;/dev/pts&quot;, 0755;
</I>&gt;<i> +    run_program::run(&quot;mount&quot;, &quot;-t&quot;, &quot;devpts&quot;, &quot;-o&quot;,
</I>&gt;<i> &quot;gid=5,mode=620,noexec,nosuid&quot;, &quot;devpts&quot;, &quot;/dev/pts&quot;);
</I>&gt;<i> +    mkdir &quot;/dev/shm&quot;, 0755;
</I>&gt;<i> +    run_program::run(&quot;mount&quot;, &quot;-t&quot;, &quot;tmpfs&quot;, &quot;-o&quot;,
</I>&gt;<i> &quot;mode=1777,nosuid,nodev&quot;, &quot;tmpfs&quot;, &quot;/dev/shm&quot;);
</I>&gt;<i> +
</I>&gt;<i> +    run_program::run(&quot;/lib/udev/udevd&quot;, &quot;--daemon&quot;,
</I>&gt;<i> &quot;--resolve-names=never&quot;);
</I>&gt;<i> +    run_program::run(&quot;udevadm&quot;, &quot;trigger&quot;, &quot;--type=subsystems&quot;,
</I>&gt;<i> &quot;--action=add&quot;);
</I>&gt;<i> +    run_program::run(&quot;udevadm&quot;, &quot;trigger&quot;, &quot;--type=devices&quot;,
</I>&gt;<i> &quot;--action=add&quot;);
</I>
A few remarks:
1) this is a little big, so better split it this into a new
start_udev() function
2) we prefer the fct(args) style over &quot;fct args&quot;
    (which is enforced by perl_checker)
3) which bring me to the last item: you should run perl_checker
    See /usr/share/doc/perl_checker/perl_checker.html &amp;
    /usr/share/doc/perl-MDK-Common/tutorial.html
It can be simply called from within emacs (or vim)
</PRE>


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