[meta-virtualization] [PATCH 4/4] xen-image-minimal: update image to support xen 4.3.0 base with xl toolstack.
Chris Patterson
cjp256 at gmail.com
Sat Aug 31 21:41:14 PDT 2013
The reasoning for xen-image-initramfs was that I had minor issues with
using stock core-image-minimal-initramfs and initramfs-live-boot.
However, I have since tracked down the issue I was having with
initramfs-live-boot, and determined we could drop initramfs-boot-xen in
favor of initramfs-live-boot simply by adding LABEL=boot to the kernel args.
Beyond that, vanilla core-image-minimal-initramfs would hang at "Waiting
for removeable media..." indefinitely. After some testing, It appeared
that adding coreutils to core-image-minimal-initramfs would resolve the
issue (though not yet sure why, but looking into it).
On Fri, Aug 30, 2013 at 1:36 AM, Bruce Ashfield <bruce.ashfield at gmail.com>wrote:
> On Thu, Aug 29, 2013 at 11:37 PM, Chris Patterson <cjp256 at gmail.com>
> wrote:
> > xen-image-initramfs: newly added initrd to support testing
> xen-image-minimal and init script based on init-live.sh.
> > ---
> > recipes-extended/images/xen-image-initramfs.bb | 17 ++
> > recipes-extended/images/xen-image-minimal.bb | 55 +++++-
> > .../initrdscripts/files/init-boot-xen.sh | 205
> ++++++++++++++++++++
> > .../initrdscripts/initramfs-boot-xen_1.0.bb | 16 ++
> > 4 files changed, 286 insertions(+), 7 deletions(-)
> > create mode 100644 recipes-extended/images/xen-image-initramfs.bb
> > create mode 100644 recipes-extended/initrdscripts/files/init-boot-xen.sh
> > create mode 100644 recipes-extended/initrdscripts/
> initramfs-boot-xen_1.0.bb
> >
> > diff --git a/recipes-extended/images/xen-image-initramfs.bbb/recipes-extended/images/
> xen-image-initramfs.bb
> > new file mode 100644
> > index 0000000..d2f1301
> > --- /dev/null
> > +++ b/recipes-extended/images/xen-image-initramfs.bb
> > @@ -0,0 +1,17 @@
> > +DESCRIPTION = "Xen image initramfs"
> > +
> > +IMAGE_INSTALL = "initramfs-boot-xen busybox udev udev-extraconf
> base-passwd coreutils"
> > +
> > +# Do not pollute the initrd image with rootfs features
> > +IMAGE_FEATURES = ""
> > +
> > +export IMAGE_BASENAME = "xen-image-initramfs"
> > +
> > +IMAGE_LINGUAS = ""
> > +
> > +LICENSE = "MIT"
> > +
> > +IMAGE_FSTYPES = "${INITRAMFS_FSTYPES}"
> > +inherit core-image
> > +
> > +IMAGE_ROOTFS_SIZE = "8192"
> > diff --git a/recipes-extended/images/xen-image-minimal.bbb/recipes-extended/images/
> xen-image-minimal.bb
> > index 0cf55d6..c941339 100644
> > --- a/recipes-extended/images/xen-image-minimal.bb
> > +++ b/recipes-extended/images/xen-image-minimal.bb
> > @@ -1,14 +1,55 @@
> > -DESCRIPTION = "A minimal xen image"
> > -IMAGE_INSTALL = "packagegroup-core-boot xen-minimal dropbear mdadm"
> > +DESCRIPTION = "Image with Xen."
> > +
> > +INITRD_IMAGE ?= "xen-image-initramfs"
> > +
> > +IMAGE_INSTALL += " \
> > + ${CORE_IMAGE_BASE_INSTALL} \
> > + packagegroup-core-basic \
> > + packagegroup-core-ssh-openssh \
> > + kernel-module-xen-acpi-processor \
> > + kernel-module-xen-blkback \
> > + kernel-module-xen-blkfront \
> > + kernel-module-xen-evtchn \
> > + kernel-module-xenfs \
> > + kernel-module-xen-gntalloc \
> > + kernel-module-xen-gntdev \
> > + kernel-module-xen-netback \
> > + kernel-module-xen-netfront \
> > + kernel-module-xen-pcifront \
> > + kernel-module-xen-privcmd \
> > + kernel-module-xen-wdt \
> > + xen-base \
> > + xen-qemu \
> > + ${ROOTFS_PKGMANAGE_BOOTSTRAP} \
> > + "
> >
> > -IMAGE_LINGUAS = " "
> > LICENSE = "MIT"
> >
> > inherit core-image
> >
> > -IMAGE_ROOTFS_SIZE = "8192"
> > +syslinux_iso_populate_append() {
> > + install -m 0444 ${STAGING_DATADIR}/syslinux/mboot.c32
> ${ISODIR}${ISOLINUXDIR}
> > +}
> > +
> > +syslinux_hddimg_populate_append() {
> > + install -m 0444 ${STAGING_DATADIR}/syslinux/mboot.c32
> ${HDDDIR}${SYSLINUXDIR}
> > +}
> > +
> > +grubefi_populate_append() {
> > + install -m 0644 ${DEPLOY_DIR_IMAGE}/xen-${MACHINE}.gz
> ${DEST}${EFIDIR}/xen.gz
> > +}
> > +
> > +populate_append() {
> > + install -m 0644 ${DEPLOY_DIR_IMAGE}/xen-${MACHINE}.gz
> ${DEST}/xen.gz
> > +}
> >
> > -# remove not needed ipkg informations
> > -ROOTFS_POSTPROCESS_COMMAND += "remove_packaging_data_files ; "
> > +build_syslinux_cfg () {
> > + echo "ALLOWOPTIONS 1" > ${SYSLINUXCFG}
> > + echo "DEFAULT boot" >> ${SYSLINUXCFG}
> > + echo "TIMEOUT 10" >> ${SYSLINUXCFG}
> > + echo "PROMPT 1" >> ${SYSLINUXCFG}
> > + echo "LABEL boot" >> ${SYSLINUXCFG}
> > + echo " KERNEL mboot.c32" >> ${SYSLINUXCFG}
> > + echo " APPEND /xen.gz loglvl=all guest_loglvl=all
> console=com1,vga com1=115200,8n1 --- /vmlinuz ramdisk_size=32768
> root=/dev/ram0 rw console=hvc0 earlyprintk=xen console=tty0 panic=10 ---
> /initrd" >> ${SYSLINUXCFG}
> > +}
> >
> > -require xen-bootimg.inc
> > diff --git a/recipes-extended/initrdscripts/files/init-boot-xen.sh
> b/recipes-extended/initrdscripts/files/init-boot-xen.sh
> > new file mode 100644
> > index 0000000..741f201
> > --- /dev/null
> > +++ b/recipes-extended/initrdscripts/files/init-boot-xen.sh
> > @@ -0,0 +1,205 @@
> > +#!/bin/sh
> > +
> > +PATH=/sbin:/bin:/usr/sbin:/usr/bin
> > +
> > +ROOT_MOUNT="/rootfs/"
> > +ROOT_IMAGE="rootfs.img"
> > +MOUNT="/bin/mount"
> > +UMOUNT="/bin/umount"
> > +ISOLINUX=""
> > +
> > +# Copied from initramfs-framework. The core of this script probably
> should be
> > +# turned into initramfs-framework modules to reduce duplication.
> > +udev_daemon() {
> > + OPTIONS="/sbin/udev/udevd /sbin/udevd /lib/udev/udevd
> /sbin/systemd/systemd-udevd /lib/systemd/systemd-udevd"
> > +
> > + for o in $OPTIONS; do
> > + if [ -x "$o" ]; then
> > + echo $o
> > + return 0
> > + fi
> > + done
> > +
> > + return 1
> > +}
> > +
> > +_UDEV_DAEMON=`udev_daemon`
> > +
> > +early_setup() {
> > + mkdir -p /proc
> > + mkdir -p /sys
> > + mount -t proc proc /proc
> > + mount -t sysfs sysfs /sys
> > + mount -t devtmpfs none /dev
> > +
> > + # support modular kernel
> > + modprobe isofs 2> /dev/null
> > +
> > + mkdir -p /run
> > + mkdir -p /var/run
> > + mkdir -p /media
> > +
> > + $_UDEV_DAEMON --daemon
> > + udevadm trigger --action=add
> > +}
> > +
> > +read_args() {
> > + [ -z "$CMDLINE" ] && CMDLINE=`cat /proc/cmdline`
> > + for arg in $CMDLINE; do
> > + optarg=`expr "x$arg" : 'x[^=]*=\(.*\)'`
> > + case $arg in
> > + root=*)
> > + ROOT_DEVICE=$optarg ;;
> > + rootfstype=*)
> > + modprobe $optarg 2> /dev/null ;;
> > + LABEL=*)
> > + label=$optarg ;;
> > + video=*)
> > + video_mode=$arg ;;
> > + vga=*)
> > + vga_mode=$arg ;;
> > + console=*)
> > + if [ -z "${console_params}" ]; then
> > + console_params=$arg
> > + else
> > + console_params="$console_params $arg"
> > + fi ;;
> > + debugshell*)
> > + if [ -z "$optarg" ]; then
> > + shelltimeout=30
> > + else
> > + shelltimeout=$optarg
> > + fi
> > + esac
> > + done
> > +}
> > +
> > +boot_live_root() {
> > + # Watches the udev event queue, and exits if all current events are
> handled
> > + udevadm settle --timeout=3 --quiet
> > + killall "${_UDEV_DAEMON##*/}" 2>/dev/null
> > +
> > + # Move the mount points of some filesystems over to
> > + # the corresponding directories under the real root filesystem.
> > + for dir in `awk '/\/dev.* \/media/{print $2}' /proc/mounts`; do
> > + mkdir -p ${ROOT_MOUNT}/$dir
> > + mount -n --move $dir ${ROOT_MOUNT}/$dir
> > + done
> > + mount -n --move /proc ${ROOT_MOUNT}/proc
> > + mount -n --move /sys ${ROOT_MOUNT}/sys
> > + mount -n --move /dev ${ROOT_MOUNT}/dev
> > +
> > + cd $ROOT_MOUNT
> > + exec switch_root -c /dev/console $ROOT_MOUNT /sbin/init
> > +}
> > +
> > +fatal() {
> > + echo $1 >$CONSOLE
> > + echo >$CONSOLE
> > + exec sh
> > +}
> > +
> > +early_setup
> > +
> > +[ -z "$CONSOLE" ] && CONSOLE="/dev/console"
> > +
> > +read_args
> > +
> > +echo "Waiting for removable media..."
> > +C=0
> > +shelltimeout=5
> > +while true
> > +do
> > + udevadm trigger
> > + udevadm settle
> > + for i in `ls /media 2>/dev/null`; do
> > + if [ -f /media/$i/$ROOT_IMAGE ] ; then
> > + found="yes"
> > + break
> > + elif [ -f /media/$i/isolinux/$ROOT_IMAGE ]; then
> > + found="yes"
> > + ISOLINUX="isolinux"
> > + break
> > + fi
> > + done
> > + if [ "$found" = "yes" ]; then
> > + break;
> > + fi
> > + # don't wait for more than $shelltimeout seconds, if it's set
> > + if [ -n "$shelltimeout" ]; then
> > + echo -n " " $(( $shelltimeout - $C ))
> > + if [ $C -ge $shelltimeout ]; then
> > + echo "..."
> > + echo "Mounted filesystems"
> > + mount | grep media
> > + echo "Available block devices"
> > + ls /dev/sd*
> > + fatal "Cannot find rootfs.img file in /media/* , dropping to
> a shell "
> > + fi
> > + C=$(( C + 1 ))
> > + fi
> > + sleep 1
> > +done
> > +
> > +# Try to make a union mount of the root image.
> > +# If no unification filesystem is available, mount the image read-only.
> > +mount_and_boot() {
> > + mkdir $ROOT_MOUNT
> > +
> > + mknod /dev/loop0 b 7 0 2>/dev/null
> > +
> > + # determine which unification filesystem to use
> > + union_fs_type=""
> > + if grep -q -w "overlayfs" /proc/filesystems; then
> > + union_fs_type="overlayfs"
> > + elif grep -q -w "aufs" /proc/filesystems; then
> > + union_fs_type="aufs"
> > + else
> > + union_fs_type=""
> > + fi
> > + # make a union mount if possible
> > + case $union_fs_type in
> > + "overlayfs")
> > + mkdir -p /rootfs.ro /rootfs.rw
> > + if ! mount -o rw,loop,noatime,nodiratime
> /media/$i/$ISOLINUX/$ROOT_IMAGE /rootfs.ro; then
> > + rm -rf /rootfs.ro /rootfs.rw
> > + fatal "Could not mount rootfs image"
> > + else
> > + mount -t tmpfs -o rw,noatime,mode=755 tmpfs /rootfs.rw
> > + mount -t overlayfs -o "lowerdir=/rootfs.ro,upperdir=/
> rootfs.rw" overlayfs $ROOT_MOUNT
> > + mkdir -p $ROOT_MOUNT/rootfs.ro $ROOT_MOUNT/rootfs.rw
> > + mount --move /rootfs.ro $ROOT_MOUNT/rootfs.ro
> > + mount --move /rootfs.rw $ROOT_MOUNT/rootfs.rw
> > + fi
> > + ;;
> > + "aufs")
> > + mkdir -p /rootfs.ro /rootfs.rw
> > + if ! mount -o rw,loop,noatime,nodiratime
> /media/$i/$ISOLINUX/$ROOT_IMAGE /rootfs.ro; then
> > + rm -rf /rootfs.ro /rootfs.rw
> > + fatal "Could not mount rootfs image"
> > + else
> > + mount -t tmpfs -o rw,noatime,mode=755 tmpfs /rootfs.rw
> > + mount -t aufs -o "dirs=/rootfs.rw=rw:/rootfs.ro=ro"
> aufs $ROOT_MOUNT
> > + mkdir -p $ROOT_MOUNT/rootfs.ro $ROOT_MOUNT/rootfs.rw
> > + mount --move /rootfs.ro $ROOT_MOUNT/rootfs.ro
> > + mount --move /rootfs.rw $ROOT_MOUNT/rootfs.rw
> > + fi
> > + ;;
> > + "")
> > + if ! mount -o rw,loop,noatime,nodiratime
> /media/$i/$ISOLINUX/$ROOT_IMAGE $ROOT_MOUNT ; then
> > + fatal "Could not mount rootfs image"
> > + else
> > + mount -t tmpfs -o rw,noatime,mode=755 tmpfs
> $ROOT_MOUNT/media
> > + fi
> > + ;;
> > + esac
> > +
> > + # boot the image
> > + boot_live_root
> > +}
> > +
> > +mount_and_boot
> > +
> > +# If we're getting here, we failed...
> > +fatal "Installation image failed"
> > +
> > diff --git a/recipes-extended/initrdscripts/initramfs-boot-xen_1.0.bbb/recipes-extended/initrdscripts/
> initramfs-boot-xen_1.0.bb
> > new file mode 100644
> > index 0000000..9380e83
> > --- /dev/null
> > +++ b/recipes-extended/initrdscripts/initramfs-boot-xen_1.0.bb
> > @@ -0,0 +1,16 @@
> > +DESCRIPTION = "A live image init script with support for Xen"
> > +LICENSE = "MIT"
> > +LIC_FILES_CHKSUM =
> "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
> > +SRC_URI = "file://init-boot-xen.sh"
> > +PR = "r0"
> > +
> > +inherit allarch
> > +
> > +RDEPENDS_${PN} = "udev udev-extraconf"
> > +
> > +FILES_${PN} += " /init "
>
> I was going to ask if you are seeing any QA warnings with this, since
> in the past we've had
> to use update alternatives and priority to ensure that the right init
> was used in an image .. but
> then I noticed this is only pulled into the minimal config and there
> shouldn't be any conflicting
> init providers!
>
> Bruce
>
> > +
> > +do_install() {
> > + install -m 0755 ${WORKDIR}/init-boot-xen.sh ${D}/init
> > +}
> > +
> > --
> > 1.7.10.4
> >
> > _______________________________________________
> > meta-virtualization mailing list
> > meta-virtualization at yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/meta-virtualization
>
>
>
> --
> "Thou shalt not follow the NULL pointer, for chaos and madness await
> thee at its end"
>
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