From: Ross Burton <ross.bur...@arm.com> Add a minimal initramfs image recipe that just contains enough initramfs to find the real root filesystem and pivot to it.
BSPs can use MACHINE_EXTRA_RRECOMMENDS to pull in any kernel module packages that are required to bring up the hardware so that the rootfs can be found. Signed-off-by: Ross Burton <ross.bur...@arm.com> --- meta/conf/distro/include/maintainers.inc | 1 + .../images/core-image-initramfs-boot.bb | 22 +++++++++++++++++++ 2 files changed, 23 insertions(+) create mode 100644 meta/recipes-core/images/core-image-initramfs-boot.bb diff --git a/meta/conf/distro/include/maintainers.inc b/meta/conf/distro/include/maintainers.inc index 445f797bcb7..de68b32192f 100644 --- a/meta/conf/distro/include/maintainers.inc +++ b/meta/conf/distro/include/maintainers.inc @@ -101,6 +101,7 @@ RECIPE_MAINTAINER:pn-connman-conf = "Ross Burton <ross.bur...@arm.com>" RECIPE_MAINTAINER:pn-connman-gnome = "Ross Burton <ross.bur...@arm.com>" RECIPE_MAINTAINER:pn-consolekit = "Chen Qi <qi.c...@windriver.com>" RECIPE_MAINTAINER:pn-core-image-base = "Richard Purdie <richard.pur...@linuxfoundation.org>" +RECIPE_MAINTAINER:pn-core-image-initramfs-boot = "Ross Burton <ross.bur...@arm.com>" RECIPE_MAINTAINER:pn-core-image-minimal = "Richard Purdie <richard.pur...@linuxfoundation.org>" RECIPE_MAINTAINER:pn-core-image-minimal-dev = "Richard Purdie <richard.pur...@linuxfoundation.org>" RECIPE_MAINTAINER:pn-core-image-minimal-initramfs = "Richard Purdie <richard.pur...@linuxfoundation.org>" diff --git a/meta/recipes-core/images/core-image-initramfs-boot.bb b/meta/recipes-core/images/core-image-initramfs-boot.bb new file mode 100644 index 00000000000..72589447513 --- /dev/null +++ b/meta/recipes-core/images/core-image-initramfs-boot.bb @@ -0,0 +1,22 @@ +SUMMARY = "Basic initramfs to boot a fully-featured rootfs" +DESCRIPTION = "Small initramfs that contains just udev and init, to find the real rootfs." +LICENSE = "MIT" + +INITRAMFS_SCRIPTS ?= "initramfs-framework-base initramfs-module-udev" + +PACKAGE_INSTALL = "${INITRAMFS_SCRIPTS} ${VIRTUAL-RUNTIME_base-utils} base-passwd" + +# Ensure the initramfs only contains the bare minimum +IMAGE_FEATURES = "" +IMAGE_LINGUAS = "" + +# Don't allow the initramfs to contain a kernel, as kernel modules will depend +# on the kernel image. +PACKAGE_EXCLUDE = "kernel-image-*" + +IMAGE_FSTYPES = "${INITRAMFS_FSTYPES}" +IMAGE_NAME_SUFFIX ?= "" +IMAGE_ROOTFS_SIZE = "8192" +IMAGE_ROOTFS_EXTRA_SPACE = "0" + +inherit image -- 2.34.1
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