initramfs-live-boot-tiny: Create the initramfs-live-boot-tiny recipe
PATCH 1/1 initramfs-live-boot-tiny: Create the initramfs-live-boot-tiny recipe
The original initramfs-live-boot recipe RDEPENDS on udev, which is ok since the init script relies some of its functionality on udevadm and such, but on core-image-tiny-initramfs the init script simply drops to shell after a basic setup, so udev is not needed.
This patch splits up an initramfs-live-boot-tiny recipe which does not use udev, but uses busybox-mdev instead, eudev installed about 600 extra Kilobytes to core-image-tiny-initramfs userspace, by avoiding to install eudev we achieve an even smaller footprint (almost 40% smaller).
--- .../images/core-image-tiny-initramfs.bb | 2 +- .../initrdscripts/initramfs-live-boot-tiny_1.0.bb | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-core/initrdscripts/initramfs-live-boot-tiny_1.0.bb
meta/recipes-core/images/core-image-tiny-initramfs.bb +1 -1
@@ -5,7 +5,7 @@ first 'init' program more efficiently. core-image-tiny-initramfs doesn't \ actually generate an image but rather generates boot and rootfs artifacts \ that can subsequently be picked up by external image generation tools such as wic." -PACKAGE_INSTALL = "initramfs-live-boot packagegroup-core-boot dropbear ${VIRTUAL-RUNTIME_base-utils} udev base-passwd ${ROOTFS_BOOTSTRAP_INSTALL}" +PACKAGE_INSTALL = "initramfs-live-boot-tiny packagegroup-core-boot dropbear ${VIRTUAL-RUNTIME_base-utils} ${VIRTUAL-RUNTIME_dev_manager} base-passwd ${ROOTFS_BOOTSTRAP_INSTALL}" # Do not pollute the initrd image with rootfs features IMAGE_FEATURES = ""
meta/recipes-core/initrdscripts/initramfs-live-boot-tiny_1.0.bb new file +21 -0
@@ -0,0 +1,21 @@ +SUMMARY = "Live image init script" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420" +DEPENDS = "virtual/kernel" +RDEPENDS_${PN} = "busybox-mdev" +SRC_URI = "file://init-live.sh" + +PR = "r12" + +S = "${WORKDIR}" + +do_install() { + install -m 0755 ${WORKDIR}/init-live.sh ${D}/init + install -d ${D}/dev + mknod -m 622 ${D}/dev/console c 5 1 +} + +FILES_${PN} += " /init /dev " + +# Due to kernel dependency +PACKAGE_ARCH = "${MACHINE_ARCH}"
Signature · 1 line
2.12.3
Quoted 11 lines · Alejandro Hernandez
The original initramfs-live-boot recipe RDEPENDS on udev, which is ok since the init script relies some of its functionality on udevadm and such, but on core-image-tiny-initramfs the init script simply drops to shell after a basic setup, so udev is not needed.
This patch splits up an initramfs-live-boot-tiny recipe which does not use udev, but uses busybox-mdev instead, eudev installed about 600 extra Kilobytes to core-image-tiny-initramfs userspace, by avoiding to install eudev we achieve an even smaller footprint (almost 40% smaller).
Signed-off-by Alejandro Hernandez <[email protected]>
It'd be nice if you could migrate to initramfs-framework as it provides mdev module and has part of this already done.
Signature · 3 lines
Otavio Salvador O.S. Systems http://www.ossystems.com.br http://code.ossystems.com.br Mobile: +55 (53) 9981-7854 Mobile: +1 (347) 903-9750
Certainly, I can set that up as one of my ToDo features for this release.
Quoted 16 lines · Otavio Salvador
Quoted 11 lines · Alejandro Hernandez
The original initramfs-live-boot recipe RDEPENDS on udev, which is ok since the init script relies some of its functionality on udevadm and such, but on core-image-tiny-initramfs the init script simply drops to shell after a basic setup, so udev is not needed.
This patch splits up an initramfs-live-boot-tiny recipe which does not use udev, but uses busybox-mdev instead, eudev installed about 600 extra Kilobytes to core-image-tiny-initramfs userspace, by avoiding to install eudev we achieve an even smaller footprint (almost 40% smaller).
Signed-off-by Alejandro Hernandez <[email protected]>It'd be nice if you could migrate to initramfs-framework as it provides mdev module and has part of this already done.