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Subject[PATCH] Enable devtmpfs by default

udev now requires CONFIG_DEVTMPFS so make it default to y.

I noticed this when booting a ppc64 pseries_defconfig on Fedora 17
and it paniced because it couldn't mount the root device.

Signed-off-by: Anton Blanchard <anton@samba.org>
---

Index: b/drivers/base/Kconfig
===================================================================
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -24,6 +24,7 @@ config UEVENT_HELPER_PATH
config DEVTMPFS
bool "Maintain a devtmpfs filesystem to mount at /dev"
depends on HOTPLUG
+ default y
help
This creates a tmpfs/ramfs filesystem instance early at bootup.
In this filesystem, the kernel driver core maintains device

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