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Diffstat (limited to 'packages/meta/slugos-image.bb')
| -rw-r--r-- | packages/meta/slugos-image.bb | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/packages/meta/slugos-image.bb b/packages/meta/slugos-image.bb new file mode 100644 index 0000000000..4031919e05 --- /dev/null +++ b/packages/meta/slugos-image.bb @@ -0,0 +1,136 @@ +# This describes a generic NSLU2 image, even though the bb file is +# called 'slugos-image.bb' the distro specific configuration is +# done in conf/distro/${DISTRO}.conf (which should always include +# conf/distro/slugos.conf to get the standard settings). +# +LICENSE = "MIT" +PR = "r16" +PROVIDES += "${SLUGOS_IMAGENAME}-image" +#FIXME: backward compatibility with the master makefile +PROVIDES += "openslug-image" + +# SLUGOS_IMAGENAME defines the name of the image to be build, if it +# is not set this package will be skipped! +IMAGE_BASENAME = "${SLUGOS_IMAGENAME}" +IMAGE_FSTYPES = "jffs2" + +# Kernel suffix - 'nslu2be' or 'nslu2le' for a truely generic image, +# override in the DISTRO configuration if patches or defconfig are +# changed for the DISTRO! +N2K_SUFFIX ?= "nslu2${ARCH_BYTE_SEX}" + +#FIXME: this is historical, there should be a minimal slugos device table and +# this stuff shouldn't be in here at all (put it in slugos-image.bb!) +# Why have anything in the config file to control the image build - why not +# just select a different image .bb file (e.g. slugos-ramdisk-image.bb) to +# build with different options. +# IMAGE_SEX = "${@['big-endian', 'little-endian'][bb.data.getVar('ARCH_BYTE_SEX', d, 1) == 'le']}" +SLUGOS_DEVICE_TABLE = "${@bb.which(bb.data.getVar('BBPATH', d, 1), 'files/device_table-slugos.txt')}" +EXTRA_IMAGECMD_jffs2 = "--pad --big-endian --eraseblock=0x20000 -D ${SLUGOS_DEVICE_TABLE}" + +# IMAGE_PREPROCESS_COMMAND is run before making the image. In SlugOS the +# kernel image is removed from the root file system to recover the space used - +# SlugOS is assumed to boot from a separate kernel image in flash (not in the +# root file system), if this is not the case the following must not be done! +IMAGE_PREPROCESS_COMMAND = "rm ${IMAGE_ROOTFS}/boot/zImage*;" + +# Building a full image. If required do a post-process command which builds +# the full image using slugimage. +# +#NOTE: you do not actually need the boot loader in normal use because it is +# *not* overwritten by a standard upslug upgrade, so you can make an image with +# just non-LinkSys software which can be flashed into the NSLU2. Because +# LinkSys have made "EraseAll" available, however, (this does overwrite RedBoot) +# it is a bad idea to produce flash images without a valid RedBoot - that allows +# an innocent user upgrade attempt to instantly brick the NSLU2. +NSLU2_SLUGIMAGE_ARGS ?= "" + +nslu2_pack_image() { + if test '${SLUGOS_FLASH_IMAGE}' = yes + then + install -d ${DEPLOY_DIR_IMAGE}/slug + install -m 0644 ${STAGING_LIBDIR}/nslu2-binaries/RedBoot \ + ${STAGING_LIBDIR}/nslu2-binaries/Trailer \ + ${STAGING_LIBDIR}/nslu2-binaries/SysConf \ + ${DEPLOY_DIR_IMAGE}/slug/ + install -m 0644 ${DEPLOY_DIR_IMAGE}/zImage-${N2K_SUFFIX} \ + ${DEPLOY_DIR_IMAGE}/slug/vmlinuz + install -m 0644 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.jffs2 \ + ${DEPLOY_DIR_IMAGE}/slug/flashdisk.jffs2 + cd ${DEPLOY_DIR_IMAGE}/slug + slugimage -p -b RedBoot -s SysConf -r Ramdisk:1,Flashdisk:flashdisk.jffs2 -t \ + Trailer -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.flashdisk.img \ + ${NSLU2_SLUGIMAGE_ARGS} + rm -rf ${DEPLOY_DIR_IMAGE}/slug + fi +} + +IMAGE_POSTPROCESS_COMMAND += "nslu2_pack_image;" + +DEPENDS += "${@['', 'slugimage-native nslu2-linksys-firmware'][bb.data.getVar('SLUGOS_FLASH_IMAGE', d, 1) == 'yes']}" + +IMAGE_LINGUAS = "" +# Setting USE_DEVFS prevents *any* entries being created initially +# in /dev +USE_DEVFS = "1" + +# CONFIG: +# SLUGOS_EXTRA_RDEPENDS: set in conf, things to add to the image +# SLUGOS_EXTRA_DEPENDS: set in conf, things to build, not added +# to the image. +# SLUGOS_NATIVE_DEPENDS: set in conf, things to build, intended +# for native (run-on-host) tools +# +# SLUGOS_SUPPORT: set to here, see below, added to build and +# to the image. +# SLUGOS_KERNEL: set here, kernel modules added to the image +# +# Do not override the last two unless you really know what you +# are doing - there is more information below. + +# diff, cpio and find are required for reflash and turnup ram. +# Removing these probably leaves the system bootable, but standard +# openslug and ucslugc stuff won't work, so only take these out in +# very non-standard turnkey ucslugc builds. +# +# udev is the default way of handling devices, there is no guarantee +# that the static device table is completely correct (it is just +# known to be sufficient for boot.) +SLUGOS_SUPPORT ?= "diffutils cpio findutils udev" + +# kernel-module-af-packet must be in the image for DHCP to work +# kernel-module-netconsole is here because it is small and is +# highly useful on minimal systems (which really don't have anywhere +# other than the network to output error messages!) +SLUGOS_KERNEL ?= "kernel-module-af-packet kernel-module-netconsole" + +# The things explicitly included in the following lists are the +# absolute minimum to have any chance of a bootable system. +DEPENDS = "virtual/kernel base-files base-passwd \ + busybox dropbear hotplug-ng initscripts-openslug netbase \ + sysvinit tinylogin portmap \ + virtual/ixp-eth openslug-init \ + module-init-tools modutils-initscripts \ + ipkg-collateral ipkg ipkg-link \ + ${SLUGOS_SUPPORT} \ + ${SLUGOS_EXTRA_DEPENDS} \ + ${SLUGOS_NATIVE_DEPENDS}" + +IPKG_INSTALL = "base-files base-passwd \ + busybox dropbear hotplug-ng initscripts-openslug netbase \ + update-modules sysvinit tinylogin portmap \ + ${PREFERRED_PROVIDER_virtual/ixp-eth} openslug-init \ + module-init-tools modutils-initscripts \ + ipkg-collateral ipkg ipkg-link \ + ${SLUGOS_SUPPORT} \ + ${SLUGOS_KERNEL} \ + ${SLUGOS_EXTRA_RDEPENDS}" + +inherit image_ipk + +python () { + # Don't build slugos images unless the configuration is set up + # for an image build! + if bb.data.getVar("SLUGOS_IMAGENAME", d, 1) == '': + raise bb.parse.SkipPackage("absent or broken SlugOS configuration") +} |