Fixes [YOCTO #1951]
The do_bootimg code can generate hybrid efi+pcbios images (syslinux and
grub-efi) to boot on platforms with both EFI and legacy BIOS options. The
current implementation copies the kernel, initrd, and rootfs twice,
unnecessarily bloating the image size. This is an especially egregious bug
on -sato images.
Update the classes to use a common install of the kernel, initrd, and rootfs to
the root of the boot media. Grub-efi, syslinux, and isolinux can all reference
this location explicitly with a leading slash.
Tested with an EFI+PCBIOS image in both EFI and PCBIOS boot modes on two
platforms. No ISO image testing was performed.
(From OE-Core rev:
5209016cf4c4c8f649e37dc8857b3fbcfe8dd8c8)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
# End result is two things:
#
# 1. A .hddimg file which is an msdos filesystem containing syslinux, a kernel,
-# an initrd and a rootfs image. These can be written to harddisks directly and
+# an initrd and a rootfs image. These can be written to harddisks directly and
# also booted on USB flash disks (write them there with dd).
#
# 2. A CD .iso image
-# Boot process is that the initrd will boot and process which label was selected
-# in syslinux. Actions based on the label are then performed (e.g. installing to
+# Boot process is that the initrd will boot and process which label was selected
+# in syslinux. Actions based on the label are then performed (e.g. installing to
# an hdd)
# External variables (also used by syslinux.bbclass)
PACKAGES = " "
EXCLUDE_FROM_WORLD = "1"
-HDDDIR = "${S}/hdd/boot"
-ISODIR = "${S}/cd"
+HDDDIR = "${S}/hddimg"
+ISODIR = "${S}/iso"
BOOTIMG_VOLUME_ID ?= "boot"
BOOTIMG_EXTRA_SPACE ?= "512"
inherit ${PCBIOS_CLASS}
inherit ${EFI_CLASS}
+populate() {
+ DEST=$1
+ install -d ${DEST}
+
+ # Install bzImage, initrd, and rootfs.img in DEST for all loaders to use.
+ install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage ${DEST}/vmlinuz
+
+ if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
+ install -m 0644 ${INITRD} ${DEST}/initrd
+ fi
+
+ if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then
+ install -m 0644 ${ROOTFS} ${DEST}/rootfs.img
+ fi
+
+}
build_iso() {
# Only create an ISO if we have an INITRD and NOISO was not set
return
fi
- install -d ${ISODIR}
+ populate ${ISODIR}
if [ "${PCBIOS}" = "1" ]; then
syslinux_iso_populate
build_hddimg() {
# Create an HDD image
if [ "${NOHDD}" != "1" ] ; then
- install -d ${HDDDIR}
+ populate ${HDDDIR}
+
if [ "${PCBIOS}" = "1" ]; then
syslinux_hddimg_populate
fi
GRUB_OPTS ?= "serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1"
EFIDIR = "/EFI/BOOT"
-GRUB_HDDDIR = "${HDDDIR}${EFIDIR}"
-GRUB_ISODIR = "${ISODIR}${EFIDIR}"
grubefi_populate() {
+ # DEST must be the root of the image so that EFIDIR is not
+ # nested under a top level directory.
DEST=$1
- install -d ${DEST}
-
- install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage ${DEST}/vmlinuz
-
- if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
- install -m 0644 ${INITRD} ${DEST}/initrd
- fi
-
- if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then
- install -m 0644 ${ROOTFS} ${DEST}/rootfs.img
- fi
+ install -d ${DEST}${EFIDIR}
GRUB_IMAGE="bootia32.efi"
if [ "${TARGET_ARCH}" = "x86_64" ]; then
GRUB_IMAGE="bootx64.efi"
fi
- install -m 0644 ${DEPLOY_DIR_IMAGE}/${GRUB_IMAGE} ${DEST}
+ install -m 0644 ${DEPLOY_DIR_IMAGE}/${GRUB_IMAGE} ${DEST}${EFIDIR}
- install -m 0644 ${GRUBCFG} ${DEST}
+ install -m 0644 ${GRUBCFG} ${DEST}${EFIDIR}
}
grubefi_iso_populate() {
- grubefi_populate ${GRUB_ISODIR}
+ grubefi_populate ${ISODIR}
}
grubefi_hddimg_populate() {
- grubefi_populate ${GRUB_HDDDIR}
+ grubefi_populate ${HDDDIR}
}
python build_grub_cfg() {
bb.data.update_data(localdata)
cfgfile.write('\nmenuentry \'%s\'{\n' % (label))
- cfgfile.write('linux ${EFIDIR}/vmlinuz LABEL=%s' % (label))
+ cfgfile.write('linux /vmlinuz LABEL=%s' % (label))
append = localdata.getVar('APPEND', True)
initrd = localdata.getVar('INITRD', True)
cfgfile.write('\n')
if initrd:
- cfgfile.write('initrd ${EFIDIR}/initrd')
+ cfgfile.write('initrd /initrd')
cfgfile.write('\n}\n')
cfgfile.close()
SYSLINUXCFG = "${S}/syslinux.cfg"
SYSLINUXMENU = "${S}/menu"
-SYSLINUX_ISODIR = "${ISODIR}/isolinux"
-SYSLINUX_HDDDIR = "${HDDDIR}"
+ISOLINUXDIR = "/isolinux"
+SYSLINUXDIR = "/"
ISO_BOOTIMG = "isolinux/isolinux.bin"
ISO_BOOTCAT = "isolinux/boot.cat"
MKISOFS_OPTIONS = "-no-emul-boot -boot-load-size 4 -boot-info-table"
syslinux_populate() {
DEST=$1
- CFGNAME=$2
+ BOOTDIR=$2
+ CFGNAME=$3
- install -d ${DEST}
-
- # Install the kernel, initrd, and rootfs
- install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage ${DEST}/vmlinuz
- if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
- install -m 0644 ${INITRD} ${DEST}/initrd
- fi
- if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then
- install -m 0644 ${ROOTFS} ${DEST}/rootfs.img
- fi
+ install -d ${DEST}${BOOTDIR}
# Install the config files
- install -m 0644 ${SYSLINUXCFG} ${DEST}/${CFGNAME}
+ install -m 0644 ${SYSLINUXCFG} ${DEST}${BOOTDIR}/${CFGNAME}
if [ -f ${SYSLINUXMENU} ]; then
- install -m 0644 ${SYSLINUXMENU} ${DEST}
+ install -m 0644 ${SYSLINUXMENU} ${DEST}${BOOTDIR}
fi
}
syslinux_iso_populate() {
- syslinux_populate ${SYSLINUX_ISODIR} isolinux.cfg
- install -m 0644 ${STAGING_LIBDIR}/syslinux/isolinux.bin ${SYSLINUX_ISODIR}
+ syslinux_populate ${ISODIR} ${ISOLINUXDIR} isolinux.cfg
+ install -m 0644 ${STAGING_LIBDIR}/syslinux/isolinux.bin ${ISODIR}${ISOLINUXDIR}
}
syslinux_hddimg_populate() {
- syslinux_populate ${SYSLINUX_HDDDIR} syslinux.cfg
- install -m 0444 ${STAGING_LIBDIR}/syslinux/ldlinux.sys ${SYSLINUX_HDDDIR}/ldlinux.sys
+ syslinux_populate ${HDDDIR} ${SYSLINUXDIR} syslinux.cfg
+ install -m 0444 ${STAGING_LIBDIR}/syslinux/ldlinux.sys ${HDDDIR}${SYSLINUXDIR}/ldlinux.sys
}
syslinux_hddimg_install() {
localdata.setVar('OVERRIDES', label + ':' + overrides)
bb.data.update_data(localdata)
- cfgfile.write('LABEL %s\nKERNEL vmlinuz\n' % (label))
+ cfgfile.write('LABEL %s\nKERNEL /vmlinuz\n' % (label))
append = localdata.getVar('APPEND', 1)
initrd = localdata.getVar('INITRD', 1)
cfgfile.write('APPEND ')
if initrd:
- cfgfile.write('initrd=initrd ')
+ cfgfile.write('initrd=/initrd ')
cfgfile.write('LABEL=%s '% (label))