Attachment 4772 Details for Bug 26772

Run kvm using initramfs

26772_initrd2initramfs.sh (text/plain), 4.20 KB, created by Philipp Hahn on 2012-11-05 20:13 CET

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Creator: Philipp Hahn

Created: 2012-11-05 20:13 CET

Size: 4.20 KB

patch

obsolete

>#/bin/bash
>#
># COnvert Initial Ram Disk (extX) to Initial Ram Filesystem (cpio)
>#
>BASE=linux-2.6.32
>ISO=/var/lib/libvirt/images/ucs_3.0-2-20120717145513-dvd-i386.iso
>FQDN=kvm.phahn.dev
>IP=192.168.122.2
>for WORK in /root/kvm-profiles /var/tmp /tmp "$HOME"
>do
>	[ -d "$WORK" ] && break
>done
>
>cache=unsafe
>format=qcow2
>
>set -e
>
>die () {
>	[ -n "$1" ] && echo "$*" >&2
>	echo "See '$0 --help' for more." >&2
>	exit 2
>}
>usage () {
>    echo "$0 [options]"
>    echo "  --dir=$WORK"
>    echo "  --fqdn=$FQDN"
>    echo "  --ip=$IP"
>    echo "  --cache=writethrough|writeback|none|directsync|unsafe"
>    echo "  --format=qcow2|qed|raw"
>}
>while [ $# -ge 1 ]
>do
>    case "$1" in
>        --dir)
>            WORK=$2
>            shift 2 || die "Missing work directory"
>            ;;
>        --fqdn)
>            FQDN=$2
>            shift 2 || die "Missing fully qualified domain name"
>            ;;
>        --ip)
>            IP=$2
>            shift 2 || die "Missing IPv4 address"
>            ;;
>        --cache)
>            cache=$2
>            shift 2 || die "Missing cache strategy"
>            ;;
>        --format)
>            format=$2
>            shift 2 || die "Missing image format"
>            ;;
>        --help|-h)
>            usage
>            exit 0
>            ;;
>        -*)
>            die "Unknown option: $1"
>            ;;
>        *)
>            die "Unknown argument: $1"
>            ;;
>    esac
>done
>
># Get Initial Ram-Disk file system
>[ -f "$WORK/$BASE.ext3" ] || {
>    mount -o ro,loop "$ISO" /mnt
>    cp "/mnt/boot/$BASE" "$WORK/$BASE"
>    gzip -dc <"/mnt/boot/$BASE.bin" >"$WORK/$BASE.ext3"
>    umount /mnt
>}
>
># Extract Initial Ram-Disk file system
>[ -d "$WORK/$BASE.root" ] || {
>    mkdir "$WORK/$BASE.root"
>    mount -o ro,loop "$WORK/$BASE.ext3" /mnt
>    cp -pr /mnt "$WORK/$BASE.root"
>    umount /mnt
>}
>
># Add missing link for Initial Ram file system
>[ -L "$WORK/$BASE.root/init" ] ||
>    ln -s bin/busybox "$WORK/$BASE.root/init"
>
># Create Initial Ram File System
>[ -f "$WORK/$BASE.cpio" ] || {
>    find "$WORK/$BASE.root" -mindepth 1 -printf '%P\0' |
>    ( cd "$WORK/$BASE.root" && fakeroot cpio -o --null --force-local --file "$WORK/$BASE.cpio" --format newc )
>}
>
># Create floppy with UCS Installer profile
>[ -d "$WORK/floppy" ] || {
>    mkdir -p "$WORK/floppy"
>    # /home/phahn/GIT/branches/ucs-3.1/ucs/base/univention-installer/installer/modules/15_profile.py
>    # /home/phahn/GIT/branches/ucs-3.1/ucs/base/univention-installer/installer/modules/65_partition.py
>    hostname=${FQDN%%.*} domainname=${FQDN#*.} net=${IP%.*}
>    sed -re "
>s|^#?to_check=.*|to_check=''|
>s|^#?auto_part=.*|auto_part='full_disk'|
>s|^#?hostname=.*|hostname='${hostname}'|
>s|^#?domainname=.*|domainname='${domainname}'|
>s|^#?ldap_base=.*|ldap_base='dc=${domainname//./,dc=}'|
>s|^#?fqdn=.*|fqdn='${FQDN}'|
>s|^#?root_password=.*|root_password='univention'|
>s|^#?dns_forwarder_1=.*|dns_forwarder_1='${net}.1'|
>s|^#?gateway=.*|gateway='${net}.1'|
>s|^#?eth0_network=.*|eth0_network='${net}.0'|
>s|^#?eth0_ip=.*|eth0_ip='${IP}'|
>s|^#?eth0_broadcast=.*|eth0_broadcast='${net}.255'|
>s|^#?eth0_netmask=.*|eth0_netmask='255.255.255.0'|
>s|^#?update_system_after_installation=.*|update_system_after_installation='false'|
>s|^#?bootloader_record=.*|bootloader_record='/dev/sda'|
>\$acreate_partitiontable='/dev/sda'
>\$a#disks='/dev/sda'
>\$a#boot_partition='/dev/sda1'
>\$a#part_delete='all'
>\$a#lvmlv_delete='vg_ucs'
>\$a#cdrom_device='/dev/sr0'
>\$aauto_reboot='yes'
>    " < "$WORK/$BASE.root/profiles/Basesystem" > "$WORK/floppy/kvm"
>}
>
># Create image
>img="$WORK/$BASE.$format"
>qemu-img create -f "$format" "$img" 20G
>trap "rm '$img'" EXIT
>
># Run KVM
>kvm=(-no-reboot) # Shutdown instead of reboot
>kvm+=(-sdl)
>kvm+=(-m 512M)
>kvm+=(-kernel "$WORK/$BASE")
>kvm+=(-initrd "$WORK/$BASE.cpio")
>#kvm+=(-append 'root=/dev/ram ro ramdisk_size=184696 flavor=linux nomodeset quiet loglevel=0 vga=788 text')
>kvm+=(-append 'root=/dev/hda ro flavor=linux nomodeset verbose loglevel=8 vga=788 text profile=kvm floppy')
>kvm+=(-drive file="$img",if=ide,index=0,media=disk,cache=$cache,format=$format)
>kvm+=(-drive file="$ISO",if=ide,index=2,media=cdrom,cache=$cache,format=raw)
>kvm+=(-drive file=fat:floppy:"$WORK/floppy",if=floppy,index=0)
>kvm+=(-vga cirrus) # qxl
>kvm+=(-net nic -net user)
>echo "format=$format cache=$cache"
>time kvm "${kvm[@]}"

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