diff options
Diffstat (limited to 'packages/images/slugos-image.bb')
| -rw-r--r-- | packages/images/slugos-image.bb | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/packages/images/slugos-image.bb b/packages/images/slugos-image.bb new file mode 100644 index 0000000000..428a48bc28 --- /dev/null +++ b/packages/images/slugos-image.bb @@ -0,0 +1,140 @@ +# This describes a generic SlugOS image, even though the bb file is +# called 'slugos-image.bb' the distro specific configuration is +# done in conf/distro/${DISTRO}.conf (which should always include +# conf/distro/slugos.conf to get the standard settings). +# +DESCRIPTION = "Generic SlugOS image" +MAINTAINER = "NSLU2 Linux <nslu2-linux@yahoogroups.com>" +HOMEPAGE = "http://www.nslu2-linux.org" +LICENSE = "MIT" +PR = "r28" + +# SLUGOS_IMAGENAME defines the name of the image to be build, if it +# is not set this package will be skipped! +IMAGE_BASENAME = "${SLUGOS_IMAGENAME}" +IMAGE_FSTYPES = "jffs2" +EXTRA_IMAGECMD_jffs2 = "--pad --${SLUGOS_IMAGESEX} --eraseblock=0x20000 -D ${SLUGOS_DEVICE_TABLE}" +IMAGE_LINGUAS = "" + +# Setting USE_DEVFS prevents *any* entries being created initially +# in /dev +USE_DEVFS = "1" + +# This is passed to the image command to build the correct /dev +# directory (because only the image program can make actual +# dev entries!) +SLUGOS_DEVICE_TABLE = "${@bb.which(bb.data.getVar('BBPATH', d, 1), 'files/device_table-slugos.txt')}" + +# 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*;" +IMAGE_PREPROCESS_COMMAND += "install -c -m 644 ${SLUGOS_DEVICE_TABLE} ${IMAGE_ROOTFS}/etc/device_table;" + +# Building a full image. If required do a post-process command which builds +# the full flash image using slugimage. At present this only works for NSLU2 images. +PACK_IMAGE = "" +IMAGE_POSTPROCESS_COMMAND += "${PACK_IMAGE}" +PACK_IMAGE_DEPENDS = "" +EXTRA_IMAGEDEPENDS += "${PACK_IMAGE_DEPENDS}" + +# This hack removes '${MACHINE}' from the end of the arch.conf for ipk, +# preventing _mach.ipk (with no byte sex) taking precedence over everything +# else. +ROOTFS_POSTPROCESS_COMMAND += "sed -i '$d' '${IMAGE_ROOTFS}/etc/ipkg/arch.conf';" + +# These depends define native utilities - they do not get put in the flash and +# are not required to build the image. +IMAGE_TOOLS = "" +EXTRA_IMAGEDEPENDS += "${IMAGE_TOOLS}" + +# CONFIG: +# SLUGOS_EXTRA_RDEPENDS: set in conf, things to add to the image +# SLUGOS_SUPPORT: set to here, see below, added 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 slugos 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" + +RDEPENDS = "kernel ixp-eth \ + base-files base-passwd netbase \ + busybox hotplug-ng initscripts-slugos slugos-init \ + update-modules sysvinit tinylogin \ + module-init-tools modutils-initscripts \ + ipkg-collateral ipkg ipkg-link \ + portmap \ + dropbear \ + beep \ + e2fsprogs-blkid \ + util-linux-mount \ + util-linux-umount \ + util-linux-swaponoff \ + util-linux-losetup \ + ${SLUGOS_SUPPORT} \ + ${SLUGOS_KERNEL} \ + ${SLUGOS_EXTRA_RDEPENDS}" + +IPKG_INSTALL = "${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) == '' or bb.data.getVar("SLUGOS_IMAGESEX", d, 1) == '': + raise bb.parse.SkipPackage("absent or broken SlugOS configuration") +} + +#-------------------------------------------------------------------------------- +# NSLU2 specific +# +#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. +PACK_IMAGE += "${@['', 'nslu2_pack_image;'][bb.data.getVar('SLUGOS_FLASH_IMAGE', d, 1) == 'yes']}" +PACK_IMAGE_DEPENDS += "${@['', 'slugimage-native nslu2-linksys-firmware'][bb.data.getVar('SLUGOS_FLASH_IMAGE', d, 1) == 'yes']}" + +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 ${DEPLOY_DIR_IMAGE}/zImage-nslu2${ARCH_BYTE_SEX} \ + ${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 +} + +# upslug2 (in tmp/work/upslug2-native-*) is the program to write the NSLU2 flash +IMAGE_TOOLS_nslu2 = "upslug2-native" |