4 lines need to be removed from arch/powerpc/boot/dts/sequoia.dts file.
Otherwise the nfs fails.
The bootargs can be picked up directly from u-boot's bootargs:
----------
?
diff -uNr linux-2.6.30/arch/powerpc/boot/dts/sequoia.dts linux-2.6.30.1/arch/powerpc/boot/dts/sequoia.dts
--- linux-2.6.30/arch/powerpc/boot/dts/sequoia.dts??? 2009-06-09 20:05:27.000000000 -0700
+++ linux-2.6.30.1/arch/powerpc/boot/dts/sequoia.dts? 2009-06-16 04:43:54.000000000 -0700
@@ -371,8 +371,5 @@
??????????? };
????? };
?
-???? chosen {
-?????????? linux,stdout-path = "/plb/opb/serial@ef600300";
-?????????? bootargs = "console=ttyS0,115200";
-???? };
+????
?};
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