diff options
| -rwxr-xr-x | scripts/prepare-nfsroot | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/scripts/prepare-nfsroot b/scripts/prepare-nfsroot new file mode 100755 index 00000000000..44ae364f144 --- /dev/null +++ b/scripts/prepare-nfsroot @@ -0,0 +1,338 @@ +#!/bin/sh +# nfsroot and tftp preparation for network boot on target hardware +# +# Copyright (C) 2006-2007 OpenedHand Ltd. +# Copyright (C) 2010 Intel Corporation +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +#TODO: handle initramfs + +me=`basename $0` +verbose=0 +gpxe=0 +pxelinux=0 +nfs_pre_umount=1 + +nfsroot=/srv/nfs/rootfs +nfs_opts="rw,fsid=0,no_root_squash,no_subtree_check" +iface=eth0 +ipstring=":::::eth0:dhcp" +extra_kernel_cmdline= + +gpxe_default_name=boot.gpxe +pxelinux_default_name=pxelinux.cfg/default + + + +if [ "x$BUILDDIR" = "x" ]; then + echo "You need to source poky-init-build-env before running this script" + exit 1 +fi + +function shorthelp { + cat >&2 <<EOF +Type \`$me' --help' for more information. +EOF +} + +function usage { + cat >&2 << EOF +Usage: + $me [options] [--] machine + +Copy kernel image to tftp, mount and export nfsroot for +poky images, can also generate scripts for booting with +gpxe and pxelinux + +Options: + -h, --help print this message + + -b, --tftpboot=DIR tftp directory [/srv/tftp or /var/lib/tftpboot] + -t, --kernel-type=TYPE kernel image type [zImage or bzImage] + -k, --kernel-image=FILE kernel image location [auto] + + -n, --nfsroot=DIR nfsroot mount point [/srv/nfs/rootfs] + --nfs-no-umount do not try to umount before mount nfsroot + -o, --nfs-options=OPTs nfs mount options [rw,fsid=0,no_root_squash,no_subtree_check] + -r, --rootfs-image=FILE rootfs image location [auto] + + -g, --gpxe generate gpxe script + --gpxe-script=FILE gpxe script name [<TFTPBOOT>/boot.gpxe] + -l, --pxelinux generate pxelinux config script + --pxelinux-script=FILE pxelinux config script name [<TFTPBOOT>/pxelinux.cfg/default] + + -i, --interface=IFACE host interface used for nfsroot [eth0] + -s, --ip-string=STRING ip= in kernel command line [::::eth0:dhcp] + + -v, --verbose be verbose + +Available machines: + qemux86 qemuarm netbook spitz borzoi akita nokia800 + +EOF +} + +function findimage { + T=$BUILDDIR/tmp/deploy/images + extension=$1 + for name in $2; do + fullname=$T/$name-$machine.$extension + if [ -e "$fullname" ]; then + rootfs_image=$fullname + return + fi + done + echo "couldn't find rootfs image in $T. Attempted image names were:" >&2 + for name in $2; + do + echo $name-$machine.$extension >&2 + done + exit 1 +} + +function guess_rootfs { + case $machine in + qemux86 | netbook) + findimage ext3 "moblin-image-sdk moblin-image-netbook poky-image-sdk \ + poky-image-sato poky-image-minimal" + ;; + qemuarm | spitz) + findimage ext3 "poky-image-sdk poky-image-sato poky-image-minimal" + ;; + akita | nokia800) + findimage jffs2 "poky-image-sdk poky-image-sato poky-image-minimal" + ;; + esac + + # delink the rootfs to minimize impact of rebuild + if [ -h $rootfs_image ]; then + rootfs_image=`readlink -fn $rootfs_image` + fi +} + +function set_default { + # dir for TFTPD: /srv/tftp or /var/lib/tftpboot + if [ "x$tftpdir" = "x" ]; then + if [ -d /srv/tftp ]; then + tftpdir=/srv/tftp + elif [ -d /var/lib/tftpboot ]; then + tftpdir=/var/lib/tftpboot + fi + fi + + # kernel image location + if [ "x$kernel_type" = "x" ]; then + case $machine in + qemux86 | netbook) + kernel_type=bzImage ;; + qemuarm | spitz | borzoi | akita | nokia800) + kernel_type=zImage ;; + *) + echo "unknown machine time, assume zImage" >&2 + kernel_type=zImage ;; + esac + fi + + if [ "x$kernel_image" = "x" ]; then + kernel_image=$BUILDDIR/tmp/deploy/images/$kernel_type-$machine.bin + fi + + if [ "x$rootfs_image" = "x" ]; then + guess_rootfs + fi + + if [ "x$gpxe_script" = "x" ]; then + gpxe_script=$tftpdir/$gpxe_default_name + fi + if [ "x$pxelinux_script" = "x" ]; then + pxelinux_script=$tftpdir/$pxelinux_default_name + fi +} + +function check_sanity { + if [ "x$tftpdir" = "x" ]; then + echo "no tftp directory is found" >&2 + exit 1 + fi + if [ ! -d "$tftpdir" ]; then + echo "tftp directory \`$tftpdir' not found" >&2 + exit 1 + fi + + if [ ! -d "$nfsroot" ]; then + echo "nfsroot mount point \`$nfsroot' not found" >&2 + exit 1 + fi + + if [ ! -e "$kernel_image" ]; then + echo "kernel image \`$kernel_image' not found" >&2 + exit 1 + fi + if [ ! -e "$rootfs_image" ]; then + echo "rootfs image \`$rootfs_image' not found" >&2 + exit 1 + fi +} + + +while [ $# -gt 0 ]; do + opt=$1 + optarg= + case $opt in + --*=*) + optarg=`echo "$1" | sed -e 's/^[^=]*=\(.*\)$/\1/'` + ;; + --*) + ;; + -[btknoris]) + optarg=$2 + shift ;; + esac + + shift + case $opt in + --help | -h) + usage ; exit 0 ;; + --tftpboot=* | -b) + tftpdir=$optarg ;; + --kernel-type=* | -t) + kernel_type=$optarg ;; + --kernel-image=* | -k) + kernel_image=$optarg ;; + --nfsroot=* | -n) + nfsroot=$optarg ;; + --nfs-no-umount) + nfs_pre_umount=0 ;; + --nfs-options=* | -o) + nfs_opts=$optarg ;; + --rootfs-image=* | -r) + rootfs_image=$optarg ;; + --interface=* | -i) + iface=$optarg ;; + --ip-string=* | -s) + ipstring=$optarg ;; + --gpxe | -g) + gpxe=1 ;; + --gpxe-script=*) + gpxe_script=$optarg ;; + --pxelinux | -l) + pxelinux=1 ;; + --pxelinux-script=*) + pxelinux_script=$optarg ;; + --verbose | -v) + verbose=1 ;; + --) + break ;; + -*) + echo "error: invalid option '$opt'" >&2 + shorthelp; exit 1 ;; + *) + if [ "x$machine" = "x" ]; then + machine=$opt + else + echo "error: extra operand" >&2 + shorthelp; exit 1 + fi + ;; + esac +done +if [ "x$machine" = "x" ]; then + if [ "x$1" != "x" ]; then + machine=$1; shift + else + echo "error: no machine specified" >&2 + shorthelp; exit 1 + fi +fi +if [ "x$1" != "x" ]; then + echo "error: extra operand" >&2 + shorthelp; exit 1 +fi + + +if [ $verbose -ne 0 ]; then + exec 3>&1 +else + exec 3> /dev/null +fi + +set_default +check_sanity + +function fail { + echo "$1 failed" >&2 + exit 1 +} + + +echo "using kernel file: $kernel_image" >&3 +echo "using rootfs file: $rootfs_image" >&3 + +# default installation use root for tftpboot +# it's very like the user don't have write permission +# so test if it's writable and use sudo if necessary + +tftp_sudo= +if [ ! -w "$tftpdir" ]; then + tftp_sudo=sudo + if [ $verbose -ne 0 ]; then + echo "\`tftpdir' not writable, assume sudo" >&3 + fi +fi + + +echo "copying \`$kernel_image' to \`$tftpdir'..." >&3 +$tftp_sudo cp -f "$kernel_image" "$tftpdir" || fail "copying kernel image" + +echo "unexporting \`*:$nfsroot'..." >&3 +sudo exportfs -uv "*:$nfsroot" || fail "unexporting rootfs" +if [ $nfs_pre_umount -ne 0 ]; then + echo "unmonting \`$nfsroot'..." >&3 + sudo umount "$nfsroot" +fi + +echo "mounting \`$rootfs_image' to \`$nfsroot'..." >&3 +sudo mount -o loop "$rootfs_image" "$nfsroot" || fail "mounting rootfs" +echo "exporting \`*:$nfsroot'..." >&3 +sudo exportfs -iv "*:$nfsroot" -o "$nfs_opts" || fail "exporting rootfs" + + +# generate boot.gpxe and pxelinux.cfg/default + +ipaddr=`/sbin/ifconfig $iface | grep 'inet addr' | sed -e 's/^.*addr:\([0-9.]*\).*$/\1/'` +kernel_uri="tftp://$ipaddr/`basename $kernel_image`" +kernel_cmdline="rw root=/dev/nfs nfsroot=$ipaddr:$nfsroot/ ip=$ipstring $extra_kernel_cmdline" + +echo "kernel uri is: $kernel_uri" +echo "kernel command line is: $kernel_cmdline" + +if [ $gpxe -ne 0 ]; then + echo "generating \`$gpxe_script'..." >&3 + $tftp_sudo cat > $gpxe_script <<EOF +#!gpxe +kernel ${kernel_uri} ${kernel_cmdline} +boot +EOF +fi + +if [ $pxelinux -ne 0 ]; then + echo "generating \`$pxelinux_script'..." >&3 + $tftp_sudo cat > $pxelinux_script <<EOF +kernel ${kernel_uri} +append ${kernel_cmdline} +EOF +fi + +exec 3>&- |