diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.0.2.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.0.2-r1.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.0.2.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.0.2-r1.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.0 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.0
index b9e3932250..2384ac8ca3 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.0
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/amd64_defconfig-4.0
@@ -557,7 +557,7 @@ CONFIG_HOTPLUG_CPU=y
 # CONFIG_DEBUG_HOTPLUG_CPU0 is not set
 # CONFIG_COMPAT_VDSO is not set
 CONFIG_CMDLINE_BOOL=y
-CONFIG_CMDLINE="init=/usr/lib/systemd/systemd"
+CONFIG_CMDLINE="init=/usr/lib/systemd/systemd rootflags=rw mount.usrflags=ro"
 # CONFIG_CMDLINE_OVERRIDE is not set
 CONFIG_HAVE_LIVEPATCH=y
 # CONFIG_LIVEPATCH is not set