<h3> <a name="failsafe">安装 - 安全设置</a> </h3> <p> Select <em>安装 - 安全设置</em> if you encounter hangs while installing or irreproducible errors. This option disables DMA for IDE drives and all power management features. See also the kernel options for <a href="#o_apm">apm</a>, <a href="#o_acpi">acpi</a> and <a href="#o_ide">ide</a>. </p>