Messages in this thread | | | Date | Wed, 8 Jun 2011 22:45:27 +0200 | From | Marc Giger <> | Subject | Disabling SATA Link Power Management (LPM) in GRUB |
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Dear Kernel Devs,
I spent my Samsung RF511 Notebook a OCZ Vertex III SSD. Unfortunately there seems to be an incompatibility between these. Samsung is not willing to help me, because they won't support foreign Hard- (OCZ SSD) and Software (Linux).
I've found the following forum entries which I think is the problem.
http://www.ocztechnologyforum.com/forum/showthread.php?88340-Vertex-3-Windows-install-in-AHCI-mode-on-Intel-6-series-Chipset-platforms
http://www.ocztechnologyforum.com/forum/showthread.php?88630-Vertex-3-problem-booting-windows-7-with-HM65-Sandybride-chips-%28Laptops%29/page3
It seems because of this GRUB has problem loading the stages from the disk in my case.
So my question are:
1. Does this make sense to you? Is it possible that it could be the reason? 2. Can the problem be solved when I implement a hack into GRUB to disable the LPM before the stages are loaded from disk? 3. What are the implementation steps which must be done? When I understand the code in the kernel correctly, the registers are written over memory mapped areas. Can it be done without mmio?
Thanks a lot!
Kind Regards
Marc
-- Lesson 1: Cryptographic protocols should not be developed by a committee. -- Niels Ferguson and Bruce Schneier --
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