Hi,<br>I tried doing that but it failed<br>#cat /etc/default/grub<br>  GRUB_TIMEOUT=5<br>  GRUB_DISTRIBUTOR=&quot;Fedora&quot;<br>  GRUB_DEFAULT=saved<br>  GRUB_CMDLINE_LINUX=&quot;<a href="http://rd.md">rd.md</a>=0 rd.lvm=0 <a href="http://rd.dm">rd.dm</a>=0 SYSFONT=True rd.luks=0  KEYTABLE=es       <br>
  LANG=en_US.UTF-8 rhgb&quot;<br>  GRUB_CMDLINE_XEN= &quot;dom0_mem=2G,max:2G&quot;<br>  #GRUB_THEME=&quot;/boot/grub2/themes/system/theme.txt&quot;<br># grub2-mkconfig -o /boot/grub2/grub.cfg <br>  /etc/default/grub: line 5: dom0_mem=2G,max:2G: command not found<br>
<br><br><div class="gmail_quote">On Wed, Jun 27, 2012 at 5:56 PM, Konrad Rzeszutek Wilk <span dir="ltr">&lt;<a href="mailto:konrad.wilk@oracle.com" target="_blank">konrad.wilk@oracle.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On Wed, Jun 27, 2012 at 05:58:56PM +0200, Arindam Choudhury wrote:<br>
&gt; Hi,<br>
&gt;<br>
&gt; I have installed xen on fedora 17 using yum.<br>
&gt;<br>
&gt; I have the well known problem on dom0<br>
&gt;<br>
&gt; total_memory           : 6075<br>
&gt; free_memory            : 644<br>
&gt;<br>
</div>&gt; I know I have to set dom0_mem=*XXX*G,max:*XXX*G and by recover the memory<br>
&gt; released. link&lt;<a href="http://blog.xen.org/index.php/2012/04/30/do%EF%BB%BFm0-memory-where-it-has-not-gone/" target="_blank">http://blog.xen.org/index.php/2012/04/30/do%EF%BB%BFm0-memory-where-it-has-not-gone/</a>&gt;<br>

<div class="im">&gt;<br>
&gt; But how to do it with grub2?<br>
<br>
</div>Edit /etc/default/grub and re-run grub-mkconfig -o /boot/grub2/grub.cfg<br>
<br>
&gt;<br>
&gt; Thanks,<br>
&gt; Arindam<br>
<span class="HOEnZb"><font color="#888888"><br>
&gt; --<br>
&gt; xen mailing list<br>
&gt; <a href="mailto:xen@lists.fedoraproject.org">xen@lists.fedoraproject.org</a><br>
&gt; <a href="https://admin.fedoraproject.org/mailman/listinfo/xen" target="_blank">https://admin.fedoraproject.org/mailman/listinfo/xen</a><br>
<br>
</font></span></blockquote></div><br>