Messages in this thread | | | Date | Sat, 20 Nov 2010 04:28:33 +0100 | From | "Andries E. Brouwer" <> | Subject | Re: ide boot failure 2.6.36/2.6.28 - 2.6.27 works |
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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
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