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diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/fs/initramfs/Config.in b/cirros-testvm/src-cirros/buildroot-2015.05/fs/initramfs/Config.in
new file mode 100644
index 0000000..8ed9f7e
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/fs/initramfs/Config.in
@@ -0,0 +1,21 @@
+config BR2_TARGET_ROOTFS_INITRAMFS
+	bool "initial RAM filesystem linked into linux kernel"
+	depends on BR2_LINUX_KERNEL
+	select BR2_TARGET_ROOTFS_CPIO
+	help
+	  Integrate the root filesystem generated by Buildroot as an
+	  initramfs inside the kernel image. This integration will
+	  take place automatically.
+
+	  A rootfs.cpio file will be generated in the images/ directory.
+	  This is the archive that will be included in the kernel image.
+	  The default rootfs compression set in the kernel configuration
+	  is used, regardless of how buildroot's cpio archive is configured.
+
+	  Note that enabling initramfs together with another filesystem
+	  formats doesn't make sense: you would end up having two
+	  identical root filesystems, one embedded inside the kernel
+	  image, and one separately.
+
+comment "initramfs needs a Linux kernel to be built"
+	depends on !BR2_LINUX_KERNEL