On Tue, 2007-08-21 at 15:03 -0600, Karl Larsen wrote: > Matthew Saltzman wrote: > > I installed F7 on a T61 and am trying to work out some of the quirks. > > The first one is: > > > > The live DVD and the install DVD both fail to recognize the hard disk if > > the controller is in AHCI mode. The workaround is to switch the > > controller mode in the BIOS to compatibility. > > > > It appears from what I've been able to find on the Web that AHCI mode > > should be supported by the ahci kernel module. > > > > Is it the case that if I install the ahci driver in the initrd, it will > > work with the controller in AHCI mode? > > > > Thanks. > > > > > I read this mail 12 times and it is still a mystery to me at least. > I have no idea what the AHCI mode might be. If you got it loaded in the > BIOS compatibility why go back to AHCI. And finally why would a Linux > kernel need an AHCI mode? AHCI is a mode for the SATA disk controller. It is higher performance than older controllers and offers additional features, such as hot-plugging, but compatibility mode degrades the performance and removes the extra features. http://en.wikipedia.org/wiki/Advanced_Host_Controller_Interface I paid for it, and I want to use it! 8^) > > I will have a new BIOS soon and wonder if I will need to do the same > thing? Maybe. Some (most?) AHCI controllers work without having to do anything special. -- Matthew Saltzman Clemson University Math Sciences mjs AT clemson DOT edu http://www.math.clemson.edu/~mjs
