[yocto] [meta-poky][PATCH] poky-tiny: Switch to using kernel 4.4 and busybox for init

[Khem Raj]

busybox based init system is available and used in many
other distributions e.g. buildroot, therefore use that
combination with mdev gives a scalable image and chance
to execute sysvinit scripts as well, adding nothing to
image size.

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta-poky/conf/distro/poky-tiny.conf | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/meta-poky/conf/distro/poky-tiny.conf b/meta-poky/conf/distro/poky-tiny.conf
index 0ac46ac..4d30bde 100644
--- a/meta-poky/conf/distro/poky-tiny.conf
+++ b/meta-poky/conf/distro/poky-tiny.conf
@@ -37,7 +37,7 @@ TCLIBC = "musl"
 # Distro config is evaluated after the machine config, so we have to explicitly
 # set the kernel provider to override a machine config.
 PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-tiny"
-PREFERRED_VERSION_linux-yocto-tiny ?= "4.1%"
+PREFERRED_VERSION_linux-yocto-tiny ?= "4.4%"
 
 # We can use packagegroup-core-boot, but in the future we may need a new packagegroup-core-tiny
 #POKY_DEFAULT_EXTRA_RDEPENDS += "packagegroup-core-boot"
@@ -80,11 +80,13 @@ DISTRO_FEATURES_append_libc-musl = " largefile"
 DISTRO_FEATURES_class-native = "${DISTRO_FEATURES_DEFAULT} ${DISTRO_FEATURES_LIBC} ${POKY_DEFAULT_DISTRO_FEATURES}"
 DISTRO_FEATURES_class-nativesdk = "${DISTRO_FEATURES_DEFAULT} ${DISTRO_FEATURES_LIBC} ${POKY_DEFAULT_DISTRO_FEATURES}"
 
-# Use tmpdevfs and the busybox runtime services
-VIRTUAL-RUNTIME_dev_manager = ""
-VIRTUAL-RUNTIME_login_manager = ""
-VIRTUAL-RUNTIME_init_manager = "tiny-init"
-VIRTUAL-RUNTIME_keymaps = ""
+# enable mdev/busybox for init
+VIRTUAL-RUNTIME_dev_manager = "busybox-mdev"
+VIRTUAL-RUNTIME_login_manager = "busybox"
+VIRTUAL-RUNTIME_init_manager = "busybox"
+VIRTUAL-RUNTIME_initscripts = "initscripts"
+VIRTUAL-RUNTIME_keymaps = "keymaps"
+DISTRO_FEATURES_BACKFILL_CONSIDERED += "sysvinit"
 
 # FIXME: Consider adding "modules" to MACHINE_FEATURES and using that in
 # packagegroup-core-base to select modutils-initscripts or not.  Similar with "net" and
-- 
1.9.1