# Settings !!!*** PLEASE MODIFY THESE ***!!! export MIRROR="ftp://ftp.mirror.ac.uk/mirror/fedora.redhat.com/6/x86_64/os/Fedora/RPMS/" export TMPDIR=`pwd`"/tmp" export ROOT_FS=`pwd`"/FedoraCore6-AMD64-root_fs" export RPM_DIR=`pwd`"/RPMS" export CHROOTCMD="chroot" export RPMCMD="rpm" export PACKAGES="packages.amd64" export ARCHES="x86_64 noarch" export DEBUG="" export DUPES="" function doGetRPM() { rpmfile="" if [ ! -z "$DEBUG" ]; then echo "grep $1 $PACKAGES | grep $2 | wc -l" fi rpmfilescount=`grep ^$1 $PACKAGES | grep $2 | wc -l` #echo "filecount=$rpmfilescount" if [ "$rpmfilescount" -eq 0 ]; then if [ ! -z "$DEBUG" ]; then echo "No RPMs found for $1 - $2" fi else if [ "$rpmfilescount" == "1" ]; then # echo "Found "`$grep` rpmfile=`grep ^$1 $PACKAGES | grep $2` else if [ ! -z "$DEBUG" ]; then echo "Too many packages matching $1: $rpmfilescount" fi rpmfile=`grep ^$1 $PACKAGES | grep $2 | sort | head -n 1` fi fi } function getRPM() { for arch in $ARCHES; do doGetRPM $1- $arch if [ ! -z "$rpmfile" ]; then return fi done for arch in $ARCHES; do doGetRPM $1 $arch if [ ! -z "$rpmfile" ]; then return fi done echo "No RPM package found for $1" exit 1 } function fetch() { base=$1 getRPM $base local=$RPM_DIR"/$rpmfile" echo "fetch() base=$base, local=$local, rpmfile=$rpmfile" if [ ! -e "$local" ]; then echo "Downloading $base ($rpmfile)" wget -c -O $local "$MIRROR$rpmfile" fi } function rpminstall() { base=$1 fetch $base stripped=`echo $base | sed 's+\.noarch++g' | sed 's+\.x86_64++g'` exists="0" if [ ! -z "$DUPES" ]; then exists=`$RPMCMD -qa --root $TMPDIR | grep $stripped | wc -l` fi if [ "$exists" -ne "0" ]; then echo "skipped: $stripped" else $RPMCMD -Uvh --root $TMPDIR $local rm -fr $TMPDIR/var/lib/rpm/__db* fi } function rpminstallgroup() { echo "SIZE="$# list="" while [ $# -ne 0 ] do package=$1 fetch $package stripped=`echo $1 | sed 's+\.noarch++g' | sed 's+\.x86_64++g'` exists="0" if [ ! -z "$DUPES" ]; then exists=`$RPMCMD -qa --root $TMPDIR | grep $stripped | wc -l` fi if [ "$exists" -ne "0" ]; then echo "skipped: $stripped" else list="$list $local" fi shift done # echo "installing list=$list" # echo "installcommand=$RPMCMD -ivh --root $TMPDIR $list" $RPMCMD -Uvh --root $TMPDIR $list rm -fr $TMPDIR/var/lib/rpm/__db* } # Making the filesystem if [ ! -e "$ROOT_FS" ]; then dd if=/dev/zero of=$ROOT_FS bs=1024 count=1 seek=1572864 mkfs.ext3 $ROOT_FS else echo "Filesystem already created" fi if [ ! -e "$TMPDIR" ]; then mkdir $TMPDIR mount -o loop $ROOT_FS $TMPDIR else echo "Filesystem already mounted" fi mkdir -p $RPM_DIR #rpm bug? mkdir -p $TMPDIR/var/lock/rpm mkdir -p $TMPDIR/var/lib/rpm if [ ! -e "$TMPDIR/var/lib/rpm" ]; then echo "initrpm:" echo "$RPMCMD --initdb --root $TMPDIR" $RPMCMD --initdb --root $TMPDIR rm -fr $TMPDIR/var/lib/rpm/__db* fi if [ ! -e "$TMPDIR/dev" ]; then mkdir $TMPDIR/dev mknod $TMPDIR/dev/null c 1 3 fi echo "going to fetch" # pretend to have a kernel (we don't need one): fetch kernel-2.6.18-1.2798.fc6.x86_64.rpm $RPMCMD -Uvh --justdb --force --nodeps --root $TMPDIR $local rm -fr $TMPDIR/var/lib/rpm/__db* mkdir -p $TMPDIR/etc # copy the fstab, passwd, shadow and group (root=/dev/ubda) cp fstab $TMPDIR/etc/ cp passwd $TMPDIR/etc/ cp shadow $TMPDIR/etc/ cp group $TMPDIR/etc/ mkdir -p $TMPDIR/usr/kerberos # Installing the base packages # no deps for these - got problems otherwise... packages="fedora-release-notes glibc libsepol pam passwd usermode setup filesystem basesystem util-linux libgcc tzdata termcap libtermcap zlib zip man-pages mktemp bash ncurses info gawk vim-common libattr libacl libstdc++ pcre grep cracklib-dicts glib2 fedora-release chkconfig sed iputils rootfiles ethtool audit-libs popt libsysfs sysfsutils cpio less gzip readline tar db4 iproute mingetty libselinux libsemanage SysVinit module-init-tools hwdata sysklogd udev procps diffutils libcap vim-minimal findutils device-mapper e2fsprogs-libs e2fsprogs net-tools shadow lvm2 MAKEDEV psmisc bzip2-libs libxml beecrypt expat sqlite tcp_wrappers gdbm coreutils cracklib python openssl libgssapi krb5-libs libselinux-python initscripts db4 glibc-headers audit-libs-python policycoreutils libselinux-python libsemanage mkinitrd dmraid rpm rpm-libs" for package in $packages; do fetch $package $RPMCMD -Uvh --force --noscripts --nodeps --root $TMPDIR $local rm -fr $TMPDIR/var/lib/rpm/__db* done mkdir $TMPDIR/etc/profile.d # some extras packages="which vixie-cron krb5-libs python-urlgrabber neon elfutils-libelf elfutils-libs elfutils openssh openssh-clients openssh-server wget python-elementtree python-sqlite elfutils rpm-python yum-metadata-parser dhcp" for package in $packages; do rpminstall $package done #$RPMCMD -e --nodeps --root $TMPDIR rpm #fetch rpm #$RPMCMD -ivh --force --nodeps --root $TMPDIR $local # rpm gets confused by these: rm -f $TMPDIR/var/lib/rpm/__db* # yum needs to be installed by the real rpm... fetch yum-3.0.6 cp $local $TMPDIR/root $CHROOTCMD $TMPDIR rpm -Uvh /root/yum*rpm rm $TMPDIR/root/yum*rpm # ldconfig the newly installed libraries ldconfig -r $TMPDIR # create the ubd devices if [ ! -e "$TMPDIR/dev/ubda" ]; then if [ -e "$TMPDIR/dev" ]; then for ((i=0; i<8; i++)) do let=$(echo $i|tr '0-7' 'a-z') mknod $TMPDIR/dev/ubd$let b 98 $[16 * $i] for ((p=1; p<=16; p++)) do mknod $TMPDIR/dev/ubd$let$p b 98 $[16 * $i + $p] done done else echo "/dev not found!" exit 1 fi fi # basic devices so we can boot without an initrd: cp -avpr /dev/console /dev/null /dev/zero $TMPDIR/dev mkdir $TMPDIR/dev/pts # copy current resolv cp /etc/resolv.conf $TMPDIR/etc # use yum to update the system mount -t proc none $TMPDIR/proc echo "/dev/ROOT / ext3 rw 0 0" > $TMPDIR/etc/mtab $CHROOTCMD $TMPDIR rpm --rebuilddb $CHROOTCMD $TMPDIR yum update # tweak the inittab to only use tty0 and add it to securetty tweaked=`grep tty0 $TMPDIR/etc/inittab | wc -l` if [ "$tweaked" -eq "0" ]; then cp $TMPDIR/etc/inittab $TMPDIR/etc/inittab.save grep -v "mingetty" $TMPDIR/etc/inittab.save > $TMPDIR/etc/inittab echo "# We launch just one console for UML:" >> $TMPDIR/etc/inittab echo "c0:1235:respawn:/sbin/mingetty tty0" >> $TMPDIR/etc/inittab echo "# UML modification: use tty0" >> $TMPDIR/etc/securetty echo "tty0" >> $TMPDIR/etc/securetty fi # We need an /etc/hosts file! echo "127.0.0.1 localhost localhost.localdomain" > $TMPDIR/etc/hosts # make the first network interface start with dhcp #cp $TMPDIR/etc/rc.d/rc.inet1.conf $TMPDIR/etc/rc.d/rc.inet1.conf.save chroot $TMPDIR yum install dhclient cp ifcfg-eth0 $TMPDIR/etc/sysconfig/networking/devices/ifcfg-eth0 cp ifcfg-eth0 $TMPDIR/etc/sysconfig/networking/profiles/default/ifcfg-eth0 cp ifcfg-eth0 $TMPDIR/etc/sysconfig/network-scripts/ifcfg-eth0 echo "NETWORKING=yes" > $TMPDIR/etc/sysconfig/network echo "HOSTNAME=localhost.localdomain" >> $TMPDIR/etc/sysconfig/network # clear specific settings: echo "" > $TMPDIR/etc/resolv.conf # clear rest of image dd if=/dev/zero of=$TMPDIR/blank >& /dev/null sync rm $TMPDIR/blank umount $TMPDIR/proc umount $TMPDIR rmdir $TMPDIR echo "Done!"