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Date: Sat, 20 Nov 2010 04:28:33 +0100 From: "Andries E. Brouwer" <Andries.Brouwer@....nl> To: linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org Subject: Re: ide boot failure 2.6.36/2.6.28 - 2.6.27 works Answering myself (and providing info that can be Googled): > I wanted to boot a recent kernel on an old machine and failed. > The last kernel that worked was 2.6.27. > What goes wrong is that the disks are no longer detected on 2.6.28. A typical error would be Cannot open root device 342 or unknown block (3,66) Reading the code shows that the default probing is no longer done. Editing ./drivers/ide/ide-generic.c and changing -static int probe_mask; +static int probe_mask = 3; returns my disks to life, and this old machine boots again. Andries -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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