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还是习惯用grub，grub2虽然好用，但是最近安装xen时却频频出现问题。于是果断卸载，重新装回了grub。
<p>步骤很简单：</p>
<p>首先执行：</p>
<pre lang="bash" line="1"> apt-get --purge remove grub-pc </pre>
<p>这时会有让你确认是否删除的提示信息，当然是选择yes</p>
<p>然后删掉原来grub2的所有配置文件,并重建grub目录：</p>
<pre lang="bash" line="2">
rm -r /boot/grub/
mkdir /boot/grub
</pre>
<p>重新安装grub， 安装完需要 update-grub 提示 if you want create a menu.lst ? 输入y同意。</p>
<pre lang="bash" line="4">
apt-get install grub
update-grub
</pre>
<p>最后可以选择将将grub loader写入物理MBR。（这里注意你是否是单硬盘，是否是多系统，请依据具体情况填写）</p>
<pre lang="bash" line="6">grub-install /dev/sda </pre>
<p>现在终于可以方便的修改menu.lst了！<br></content></p>
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