<br><div class="gmail_quote">On Wed, Feb 6, 2013 at 12:50 PM, <span dir="ltr"><<a href="mailto:Valdis.Kletnieks@vt.edu" target="_blank">Valdis.Kletnieks@vt.edu</a>></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, 06 Feb 2013 13:21:17 +0800, horseriver said:<br>
> At booting stage,kernel need to detect the hard device before mount it,<br>
> does this work need pci's surport?<br>
<br>
</div>That depends. Is the controller for the hard drive a PCI-based controller? On<br>
most x86-based boxes, it is (and I'm not sure it's even possible to build an<br>
x86 kernel that doesn't have PCI as a =y in the config). However, very old<br>
units may still have ISA based disk controllers, and other archs may have other<br>
I/O buses.</blockquote></div><br>Most new MB's have a SATA controller directly on the MB connected directly to either the North or South bridge (I don't know which).<br><br>I don't think any PCI is support needed to talk to the boot disk.<br>
<br clear="all">Greg<br><br>