#!/bin/bash - # @configure_input@ # Copyright (C) 2009 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # 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., 675 Mass Ave, Cambridge, MA 02139, USA. # This is called from the Makefile to build the initramfs. set -e # If you want to do some extra debugging and diagnosis of the # initramfs image, then uncomment this line. This makes the image # larger. debug=yes modules="-i kernel -i bash -i coreutils -i lvm2 -i ntfs-3g -i util-linux-ng -i MAKEDEV -i net-tools -i augeas-libs" if [ "x$debug" = "xyes" ]; then modules="$modules -i module-init-tools -i procps -i strace -i iputils" fi # Decide on names for the final output. These have to match Makefile.am. output=initramfs.@REPO@.@host_cpu@.img koutput=vmlinuz.@REPO@.@host_cpu@ rm -f $output rm -f $koutput # Create the basic initramfs. @FEBOOTSTRAP@ $modules -u @UPDATES@ @REPO@ initramfs @MIRROR@ # /sysroot is where the guest root filesystem will be mounted. mkdir initramfs/sysroot # Make a safe 'install_file' function to install files into the # filesystem. XXX We need a 'febootstrap-install' utility. # Usage: install_file mode owner[.group] install_file () { cp "$1" initramfs/"$2" # Get the inode of the new file and remove it from fakeroot.log. ino=$(ls -i initramfs/"$2" | awk '{print $1}') cp initramfs/fakeroot.log fakeroot.log.old grep -v "ino=$ino," fakeroot.log.old > initramfs/fakeroot.log rm fakeroot.log.old # Set mode, owner and group as desired. @FEBOOTSTRAP_RUN@ initramfs -- chmod "$3" "$2" @FEBOOTSTRAP_RUN@ initramfs -- chown "$4" "$2" } # Nuke some stuff. The kernel pulls mkinitrd and plymouth which pulls in # all of Python. Sheez. find initramfs -name '*plymouth*' -print0 | xargs -0 rm -rf find initramfs -name '*python*' -print0 | xargs -0 rm -rf # Modules take up nearly half of the image. It's a rough guess that # we don't need any drivers (which take up most of the space). find initramfs/lib/modules/*/kernel \ -name '*.ko' \ -a ! -name 'mii.ko' \ -a ! -name '8139cp.ko' \ -a -delete # Pull the kernel out into the current directory. We don't want it in # the initramfs image. mv initramfs/boot/vmlinuz* $koutput rm -rf initramfs/boot # Minimize the image. @FEBOOTSTRAP_MINIMIZE@ initramfs # Add some missing configuration files. if [ ! -f initramfs/etc/hosts ]; then cat > hosts.new <<'__EOF__' 127.0.0.1 guestfs localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 __EOF__ install_file hosts.new /etc/hosts 0644 root.root rm hosts.new fi if [ ! -f initramfs/etc/fstab ]; then @FEBOOTSTRAP_RUN@ initramfs -- touch /etc/fstab fi echo nameserver 10.0.2.3 > resolv.conf.new install_file resolv.conf.new /etc/resolv.conf 0644 root.root rm resolv.conf.new # Create the init script. cat > init.new <<'__EOF__' #!/bin/sh PATH=/sbin:/usr/sbin:$PATH MAKEDEV mem null port zero core full ram tty console fd \ hda hdb hdc hdd sda sdb sdc sdd loop sd mount -t proc /proc /proc mount -t sysfs /sys /sys mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts modprobe 8139cp /sbin/ifconfig lo 127.0.0.1 /sbin/ifconfig eth0 10.0.2.10 /sbin/route add default gw 10.0.2.2 lvm vgscan --ignorelockingfailure lvm vgchange -ay --ignorelockingfailure __EOF__ if [ "x$debug" != "xyes" ]; then echo exec guestfsd -f >> init.new else echo guestfsd >> init.new echo exec bash -i >> init.new fi install_file init.new /init 0755 root.root rm init.new # Copy the daemon into the filesystem. install_file @abs_builddir@/daemon/guestfsd /sbin/guestfsd 0755 root.root # Generate final image. @FEBOOTSTRAP_TO_INITRAMFS@ initramfs > $output-t mv $output-t $output ls -lh $output ls -lh $koutput