| #!/bin/bash |
| |
| # Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This script sets up a Gentoo chroot environment. The script is passed the |
| # path to an empty folder, which will be populated with a Gentoo stage3 and |
| # setup for development. Once created, the password is set to PASSWORD (below). |
| # One can enter the chrooted environment for work by running enter_chroot.sh. |
| |
| # Find common.sh, because this script can run from two locations: |
| # src/scripts/ or src/third_party/chromiumos-overlay/chromeos/scripts |
| for path in "$(dirname $0)" "$(dirname $0)/../../../../scripts"; do |
| if [ -r "${path}/common.sh" ]; then |
| SCRIPT_ROOT=${path} |
| break |
| fi |
| done |
| . "${SCRIPT_ROOT}/common.sh" || { echo "Unable to load common.sh"; exit 1; } |
| |
| # Check if the host machine architecture is supported. |
| ARCHITECTURE="$(uname -m)" |
| if [[ "$ARCHITECTURE" != "x86_64" ]]; then |
| echo "$SCRIPT_NAME: $ARCHITECTURE is not supported as a host machine architecture." |
| exit 1 |
| fi |
| |
| # Script must be run outside the chroot |
| assert_outside_chroot |
| |
| # Define command line flags |
| # See http://code.google.com/p/shflags/wiki/Documentation10x |
| |
| DEFINE_string chroot "$DEFAULT_CHROOT_DIR" \ |
| "Destination dir for the chroot environment." |
| DEFINE_boolean usepkg $FLAGS_TRUE "Use binary packages to bootstrap." |
| DEFINE_boolean delete $FLAGS_FALSE "Delete an existing chroot." |
| DEFINE_boolean replace $FLAGS_FALSE "Overwrite existing chroot, if any." |
| DEFINE_integer jobs -1 "How many packages to build in parallel at maximum." |
| DEFINE_boolean fast ${DEFAULT_FAST} "Call many emerges in parallel" |
| DEFINE_string stage3_date "2010.03.09" \ |
| "Use the stage3 with the given date." |
| DEFINE_string stage3_path "" \ |
| "Use the stage3 located on this path." |
| DEFINE_boolean cros_sdk $FLAGS_FALSE "Internal: we're called from cros_sdk" |
| |
| # Parse command line flags |
| FLAGS_HELP="usage: $SCRIPT_NAME [flags]" |
| FLAGS "$@" || exit 1 |
| eval set -- "${FLAGS_ARGV}" |
| check_flags_only_and_allow_null_arg "$@" && set -- |
| |
| if [ "${FLAGS_cros_sdk}" == "${FLAGS_TRUE}" ]; then |
| # HACK: If we're being called by cros_sdk, change the messages. |
| SCRIPT_NAME=cros_sdk |
| fi |
| |
| assert_not_root_user |
| # Set the right umask for chroot creation. |
| umask 022 |
| |
| # Only now can we die on error. shflags functions leak non-zero error codes, |
| # so will die prematurely if 'set -e' is specified before now. |
| # TODO: replace shflags with something less error-prone, or contribute a fix. |
| set -e |
| |
| FULLNAME="ChromeOS Developer" |
| DEFGROUPS="eng,adm,cdrom,floppy,audio,video,portage" |
| PASSWORD=chronos |
| CRYPTED_PASSWD=$(perl -e 'print crypt($ARGV[0], "foo")', $PASSWORD) |
| |
| USEPKG="" |
| if [[ $FLAGS_usepkg -eq $FLAGS_TRUE ]]; then |
| # Use binary packages. Include all build-time dependencies, |
| # so as to avoid unnecessary differences between source |
| # and binary builds. |
| USEPKG="--getbinpkg --usepkg --with-bdeps y" |
| fi |
| |
| # Support faster build if necessary. |
| EMERGE_CMD="emerge" |
| if [ "$FLAGS_fast" -eq "${FLAGS_TRUE}" ]; then |
| CHROOT_CHROMITE_DIR="/home/${USER}/trunk/chromite" |
| EMERGE_CMD="${CHROOT_CHROMITE_DIR}/bin/parallel_emerge" |
| fi |
| |
| function in_chroot { |
| sudo "${CHROOT_PASSTHRU[@]}" chroot "$FLAGS_chroot" "$@" |
| } |
| |
| function bash_chroot { |
| # Use $* not $@ since 'bash -c' needs a single arg |
| # Use -l to force source of /etc/profile (login shell) |
| sudo "${CHROOT_PASSTHRU[@]}" chroot "$FLAGS_chroot" bash -l -c "$*" |
| } |
| |
| function sudo_chroot { |
| # The same as bash_chroot, except ran as the normal user. |
| sudo chroot "$FLAGS_chroot" sudo -i -u ${USER} "${CHROOT_PASSTHRU[@]}" -- "$@" |
| } |
| |
| function cleanup { |
| # Clean up mounts |
| # |
| # HACK ALERT: Instead of tracking our nested mounts, we assume they will |
| # HACK ALERT: be shown in mount order. So we just reverse the list and |
| # HACK ALERT: umount them. |
| mount | grep "on $(readlink -f "$FLAGS_chroot")/" | awk '{print $3}' \ |
| | sort -r | xargs -r -L1 sudo umount -l |
| } |
| |
| function delete_existing { |
| # Delete old chroot dir |
| if [[ -e "$FLAGS_chroot" ]]; then |
| echo "$SCRIPT_NAME: Cleaning up old mount points..." |
| cleanup |
| echo "$SCRIPT_NAME: Deleting $FLAGS_chroot..." |
| sudo rm -rf "$FLAGS_chroot" |
| echo "$SCRIPT_NAME: Done." |
| fi |
| } |
| |
| function init_users () { |
| echo "$SCRIPT_NAME: Set timezone..." |
| # date +%Z has trouble with daylight time, so use host's info |
| in_chroot rm -f /etc/localtime |
| if [ -f /etc/localtime ] ; then |
| sudo cp /etc/localtime "${FLAGS_chroot}/etc" |
| else |
| in_chroot ln -sf /usr/share/zoneinfo/PST8PDT /etc/localtime |
| fi |
| echo "$SCRIPT_NAME: Adding user/group..." |
| # Add ourselves as a user inside the chroot. |
| in_chroot groupadd -g 5000 eng |
| # We need the UID to match the host user's. This can conflict with |
| # a particular chroot UID. At the same time, the added user has to |
| # be a primary user for the given UID for sudo to work, which is |
| # determined by the order in /etc/passwd. Let's put ourselves on top |
| # of the file. |
| in_chroot useradd -o -G ${DEFGROUPS} -g eng -u `id -u` -s \ |
| /bin/bash -m -c "${FULLNAME}" -p ${CRYPTED_PASSWD} ${USER} |
| # Because passwd generally isn't sorted and the entry ended up at the |
| # bottom, it is safe to just take it and move it to top instead. |
| in_chroot sed -e '1{h;d};$!{H;d};$G' -i /etc/passwd |
| } |
| |
| function init_setup () { |
| echo "$SCRIPT_NAME: Running init_setup()..." |
| sudo mkdir -p "${FLAGS_chroot}/usr" |
| sudo ln -sf "${CHROOT_TRUNK}/src/third_party/portage" \ |
| "${FLAGS_chroot}/usr/portage" |
| sudo mkdir -p "${FLAGS_chroot}/usr/local/portage" |
| sudo chmod 755 "${FLAGS_chroot}/usr/local/portage" |
| sudo ln -sf "${CHROOT_TRUNK}/src/third_party/chromiumos-overlay" \ |
| "${FLAGS_chroot}"/"${CHROOT_OVERLAY}" |
| sudo ln -sf "${CHROOT_TRUNK}/src/third_party/portage-stable" \ |
| "${FLAGS_chroot}"/"${PORTAGE_STABLE_OVERLAY}" |
| sudo mkdir -p "${FLAGS_chroot}"/"${CROSSDEV_OVERLAY}" |
| sudo chmod 755 "${FLAGS_chroot}"/"${CROSSDEV_OVERLAY}" |
| |
| # Some operations need an mtab |
| in_chroot ln -s /proc/mounts /etc/mtab |
| |
| # Set up sudoers. Inside the chroot, the user can sudo without a password. |
| # (Safe enough, since the only way into the chroot is to 'sudo chroot', so |
| # the user's already typed in one sudo password...) |
| # Make sure the sudoers.d subdir exists as older stage3 base images lack it. |
| sudo mkdir -p "${FLAGS_chroot}/etc/sudoers.d" |
| sudo_clobber "${FLAGS_chroot}/etc/sudoers.d/90_cros" <<EOF |
| Defaults env_keep += CROS_WORKON_SRCROOT |
| Defaults env_keep += CHROMEOS_OFFICIAL |
| Defaults env_keep += PORTAGE_USERNAME |
| Defaults env_keep += http_proxy |
| Defaults env_keep += ftp_proxy |
| Defaults env_keep += all_proxy |
| %adm ALL=(ALL) ALL |
| root ALL=(ALL) ALL |
| $USER ALL=NOPASSWD: ALL |
| EOF |
| bash_chroot "find /etc/sudoers* -type f -exec chmod 0440 {} +" |
| bash_chroot "chown -R root:root /etc/sudoers*" # Fix bad group for some. |
| |
| echo "$SCRIPT_NAME: Setting up hosts/resolv..." |
| # Copy config from outside chroot into chroot |
| sudo cp /etc/hosts "$FLAGS_chroot/etc/hosts" |
| sudo chmod 0644 "$FLAGS_chroot/etc/hosts" |
| sudo cp /etc/resolv.conf "$FLAGS_chroot/etc/resolv.conf" |
| sudo chmod 0644 "$FLAGS_chroot/etc/resolv.conf" |
| |
| # Setup host make.conf. This includes any overlay that we may be using |
| # and a pointer to pre-built packages. |
| # TODO: This should really be part of a profile in the portage |
| echo "$SCRIPT_NAME: Setting up /etc/make.*..." |
| sudo mv "${FLAGS_chroot}"/etc/make.conf{,.orig} |
| sudo ln -sf "${CHROOT_CONFIG}/make.conf.amd64-host" \ |
| "${FLAGS_chroot}/etc/make.conf" |
| sudo mv "${FLAGS_chroot}"/etc/make.profile{,.orig} |
| sudo ln -sf "${CHROOT_OVERLAY}/profiles/default/linux/amd64/10.0" \ |
| "${FLAGS_chroot}/etc/make.profile" |
| |
| # Create make.conf.user |
| sudo touch "${FLAGS_chroot}"/etc/make.conf.user |
| sudo chmod 0644 "${FLAGS_chroot}"/etc/make.conf.user |
| |
| # Create directories referred to by our conf files. |
| sudo mkdir -p -m 775 "${FLAGS_chroot}/var/lib/portage/distfiles" |
| sudo mkdir -p -m 775 "${FLAGS_chroot}/var/lib/portage/distfiles-target" |
| sudo mkdir -p -m 775 "${FLAGS_chroot}/var/lib/portage/pkgs" |
| |
| if [[ $FLAGS_jobs -ne -1 ]]; then |
| EMERGE_JOBS="--jobs=$FLAGS_jobs" |
| fi |
| |
| # Add chromite/bin and depot_tools into the path globally; note that the |
| # chromite wrapper itself might also be found in depot_tools. |
| # We rely on 'env-update' getting called below. |
| target="${FLAGS_chroot}/etc/env.d/99chromiumos" |
| sudo_clobber "${target}" <<EOF |
| PATH=/home/$USER/trunk/chromite/bin:/home/$USER/depot_tools |
| CROS_WORKON_SRCROOT="${CHROOT_TRUNK}" |
| PORTAGE_USERNAME=$USER |
| EOF |
| |
| # TODO(zbehan): Configure stuff that is usually configured in postinst's, |
| # but wasn't. Fix the postinst's. crosbug.com/18036 |
| echo "Running post-inst configuration hacks" |
| in_chroot env-update |
| if [ -f ${FLAGS_chroot}/usr/bin/build-docbook-catalog ]; then |
| # For too ancient chroots that didn't have build-docbook-catalog, this |
| # is not relevant, and will get installed during update. |
| in_chroot build-docbook-catalog |
| fi |
| |
| # Configure basic stuff needed |
| in_chroot env-update |
| bash_chroot ls -l /etc/make.conf |
| bash_chroot ls -l /etc/make.profile |
| bash_chroot ls -l /usr/local/portage/chromiumos/profiles/default/linux/amd64/10.0 |
| |
| # Niceties for interactive logins ('enter_chroot.sh'); these are ignored |
| # when specifying a command to enter_chroot.sh. The $r behavior is to |
| # make sure we don't reset the previous $? value which later formats in |
| # $PS1 might rely on. |
| echo "export " \ |
| "PS1='\$(r=\$?; __git_branch_ps1 \"(%s) \"; exit \$r)'\"\${PS1}\"" >> \ |
| "$FLAGS_chroot/home/$USER/.bashrc" |
| echo "export PS1=\"(cr) \${PS1}\"" >> \ |
| "$FLAGS_chroot/home/$USER/.bashrc" |
| |
| # Select a small set of locales for the user if they haven't done so |
| # already. This makes glibc upgrades cheap by only generating a small |
| # set of locales. The ones listed here are basically for the buildbots |
| # which always assume these are available. This works in conjunction |
| # with `cros_sdk --enter`. |
| # http://crosbug.com/20378 |
| local localegen="$FLAGS_chroot/etc/locale.gen" |
| if ! grep -q -v -e '^#' -e '^$' "${localegen}" ; then |
| sudo_append "${localegen}" <<EOF |
| en_US ISO-8859-1 |
| en_US.UTF-8 UTF-8 |
| EOF |
| fi |
| |
| # Add chromite as a local site-package. |
| mkdir -p "${FLAGS_chroot}/home/$USER/.local/lib/python2.6/site-packages" |
| ln -s ../../../../trunk/chromite \ |
| "${FLAGS_chroot}/home/$USER/.local/lib/python2.6/site-packages/" |
| |
| chmod a+x "$FLAGS_chroot/home/$USER/.bashrc" |
| # Automatically change to scripts directory |
| echo "cd trunk/src/scripts" >> "$FLAGS_chroot/home/$USER/.bash_profile" |
| |
| # Enable bash completion for build scripts |
| echo ". bash_completion" >> "$FLAGS_chroot/home/$USER/.bash_profile" |
| |
| # Warn if attempting to use source control commands inside the chroot |
| for NOUSE in svn gcl gclient |
| do |
| echo "alias $NOUSE='echo In the chroot, it is a bad idea to run $NOUSE'" \ |
| >> "$FLAGS_chroot/home/$USER/.bash_profile" |
| done |
| |
| if [[ "$USER" = "chrome-bot" ]]; then |
| # Copy ssh keys, so chroot'd chrome-bot can scp files from chrome-web. |
| cp -r ~/.ssh "$FLAGS_chroot/home/$USER/" |
| fi |
| |
| if [[ -f $HOME/.gitconfig ]]; then |
| # Copy .gitconfig into chroot so repo and git can be used from inside |
| # This is required for repo to work since it validates the email address |
| echo "Copying ~/.gitconfig into chroot" |
| cp $HOME/.gitconfig "$FLAGS_chroot/home/$USER/" |
| fi |
| } |
| |
| # Handle deleting an existing environment |
| if [[ $FLAGS_delete -eq $FLAGS_TRUE || \ |
| $FLAGS_replace -eq $FLAGS_TRUE ]]; then |
| delete_existing |
| [[ $FLAGS_delete -eq $FLAGS_TRUE ]] && exit 0 |
| fi |
| |
| CHROOT_TRUNK="${CHROOT_TRUNK_DIR}" |
| PORTAGE="${SRC_ROOT}/third_party/portage" |
| OVERLAY="${SRC_ROOT}/third_party/chromiumos-overlay" |
| CONFIG_DIR="${OVERLAY}/chromeos/config" |
| CHROOT_CONFIG="${CHROOT_TRUNK}/src/third_party/chromiumos-overlay/chromeos/config" |
| PORTAGE_STABLE_OVERLAY="/usr/local/portage/stable" |
| CROSSDEV_OVERLAY="/usr/local/portage/crossdev" |
| CHROOT_OVERLAY="/usr/local/portage/chromiumos" |
| CHROOT_STATE="${FLAGS_chroot}/etc/debian_chroot" |
| CHROOT_PASSTHRU=(CROS_WORKON_SRCROOT="$CHROOT_TRUNK" PORTAGE_USERNAME="$USER" |
| IGNORE_PREFLIGHT_BINHOST="$IGNORE_PREFLIGHT_BINHOST") |
| |
| # Pass proxy variables into the environment. |
| for type in http ftp all; do |
| value=$(env | grep ${type}_proxy || true) |
| if [ -n "${value}" ]; then |
| CHROOT_PASSTHRU+=("$value") |
| fi |
| done |
| |
| # Create the base Gentoo stage3 based on last version put in chroot |
| STAGE3="${OVERLAY}/chromeos/stage3/stage3-amd64-${FLAGS_stage3_date}.tar.bz2" |
| if [ -f $CHROOT_STATE ] && \ |
| ! sudo egrep -q "^STAGE3=$STAGE3" $CHROOT_STATE >/dev/null 2>&1 |
| then |
| echo "$SCRIPT_NAME: STAGE3 version has changed." |
| delete_existing |
| fi |
| |
| if [ -n "${FLAGS_stage3_path}" ]; then |
| if [ -f "${FLAGS_stage3_path}" ]; then |
| STAGE3="${FLAGS_stage3_path}" |
| else |
| error "Invalid stage3!" |
| exit 1; |
| fi |
| fi |
| |
| # Create the destination directory |
| mkdir -p "$FLAGS_chroot" |
| |
| echo |
| if [ -f $CHROOT_STATE ] |
| then |
| echo "$SCRIPT_NAME: STAGE3 already set up. Skipping..." |
| else |
| echo "$SCRIPT_NAME: Unpacking STAGE3..." |
| sudo tar xjp -C "$FLAGS_chroot" -f "$STAGE3" |
| sudo rm -f $FLAGS_chroot/etc/make.globals |
| sudo rm -f $FLAGS_chroot/etc/make.conf.user |
| fi |
| |
| # Set up users, if needed, before mkdir/mounts below |
| [ -f $CHROOT_STATE ] || init_users |
| |
| echo |
| echo "$SCRIPT_NAME: Setting up mounts..." |
| # Set up necessary mounts and make sure we clean them up on exit |
| trap cleanup EXIT |
| sudo mkdir -p "${FLAGS_chroot}/${CHROOT_TRUNK}" |
| sudo mount --bind /dev "${FLAGS_chroot}/dev" |
| sudo mount --bind "${GCLIENT_ROOT}" "${FLAGS_chroot}/${CHROOT_TRUNK}" |
| sudo mount none -t proc "$FLAGS_chroot/proc" |
| sudo mount none -t devpts "$FLAGS_chroot/dev/pts" |
| sudo mkdir -p "${FLAGS_chroot}/run" |
| if [ -d /run ]; then |
| sudo mount --bind /run "$FLAGS_chroot/run" |
| if [ -d /run/shm ]; then |
| sudo mount --bind /run/shm "$FLAGS_chroot/run/shm" |
| fi |
| fi |
| PREBUILT_SETUP="$FLAGS_chroot/etc/make.conf.prebuilt_setup" |
| if [[ -z "$IGNORE_PREFLIGHT_BINHOST" ]]; then |
| echo 'PORTAGE_BINHOST="$FULL_BINHOST"' | sudo_clobber "$PREBUILT_SETUP" |
| else |
| sudo_clobber "$PREBUILT_SETUP" < /dev/null |
| fi |
| sudo chmod 0644 "$PREBUILT_SETUP" |
| |
| # For bootstrapping from old wget, disable certificate checking. Once we've |
| # upgraded to new curl (below), certificate checking is re-enabled. See |
| # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=409938 |
| bash_chroot 'cat > /etc/make.conf.fetchcommand_setup' <<'EOF' |
| FETCHCOMMAND="/usr/bin/wget -t 5 -T 60 --no-check-certificate --passive-ftp -O \"\${DISTDIR}/\${FILE}\" \"\${URI}\"" |
| RESUMECOMMAND="/usr/bin/wget -c -t 5 -T 60 --no-check-certificate --passive-ftp -O \"\${DISTDIR}/\${FILE}\" \"\${URI}\"" |
| EOF |
| sudo chmod 0644 "${FLAGS_chroot}"/etc/make.conf.fetchcommand_setup |
| bash_chroot 'cat > /etc/make.conf.host_setup' <<EOF |
| # Created by make_chroot |
| source make.conf.prebuilt_setup |
| source make.conf.fetchcommand_setup |
| MAKEOPTS="-j${NUM_JOBS}" |
| EOF |
| sudo chmod 0644 "${FLAGS_chroot}"/etc/make.conf.host_setup |
| |
| if ! [ -f "$CHROOT_STATE" ];then |
| INITIALIZE_CHROOT=1 |
| fi |
| |
| |
| if [ -z "${INITIALIZE_CHROOT}" ];then |
| echo "$SCRIPT_NAME: chroot already initialized. Skipping..." |
| else |
| # run all the init stuff to setup the env |
| init_setup |
| fi |
| |
| # Add file to indicate that it is a chroot |
| # Add version of $STAGE3 for update checks |
| sudo sh -c "echo STAGE3=$STAGE3 > $CHROOT_STATE" |
| |
| echo "$SCRIPT_NAME: Updating portage" |
| in_chroot emerge -uNv portage |
| |
| echo "$SCRIPT_NAME: Updating toolchain" |
| in_chroot emerge -uNv $USEPKG '>=sys-devel/gcc-4.4' sys-libs/glibc \ |
| sys-devel/binutils sys-kernel/linux-headers |
| |
| # HACK: Select the latest toolchain. We're assuming that when this is |
| # ran, the chroot has no experimental versions of new toolchains, just |
| # one that is very old, and one that was just emerged. |
| CHOST="$(in_chroot portageq envvar CHOST)" |
| LATEST="$(in_chroot gcc-config -l | grep "${CHOST}" | tail -n1 | \ |
| cut -f3 -d' ')" |
| in_chroot gcc-config "${LATEST}" |
| in_chroot emerge --unmerge "<sys-devel/gcc-${LATEST/${CHOST}-/}" |
| |
| # dhcpcd is included in 'world' by the stage3 that we pull in for some reason. |
| # We have no need to install it in our host environment, so pull it out here. |
| echo "$SCRIPT_NAME: Deselecting dhcpcd" |
| in_chroot $EMERGE_CMD --deselect dhcpcd |
| |
| echo "$SCRIPT_NAME: Running emerge ccache curl sudo ..." |
| in_chroot $EMERGE_CMD -uNv $USEPKG ccache net-misc/curl sudo $EMERGE_JOBS |
| |
| # Curl is now installed, so we can depend on it now. |
| bash_chroot 'cat > /etc/make.conf.fetchcommand_setup' <<'EOF' |
| FETCHCOMMAND='curl -f -y 30 --retry 9 -L --output \${DISTDIR}/\${FILE} \${URI}' |
| RESUMECOMMAND='curl -f -y 30 -C - --retry 9 -L --output \${DISTDIR}/\${FILE} \${URI}' |
| EOF |
| sudo chmod 0644 "${FLAGS_chroot}"/etc/make.conf.fetchcommand_setup |
| |
| if [ -n "${INITIALIZE_CHROOT}" ]; then |
| # If we're creating a new chroot, we also want to set it to the latest |
| # version. |
| sudo_chroot \ |
| "${CHROOT_TRUNK}/src/scripts/run_chroot_version_hooks" --force_latest |
| fi |
| |
| # Update chroot |
| UPDATE_ARGS="" |
| if [[ $FLAGS_usepkg -eq $FLAGS_TRUE ]]; then |
| UPDATE_ARGS+=" --usepkg" |
| else |
| UPDATE_ARGS+=" --nousepkg" |
| fi |
| if [[ ${FLAGS_fast} -eq ${FLAGS_TRUE} ]]; then |
| UPDATE_ARGS+=" --fast" |
| else |
| UPDATE_ARGS+=" --nofast" |
| fi |
| sudo_chroot "${CHROOT_TRUNK}/src/scripts/update_chroot" ${UPDATE_ARGS} |
| |
| # Unmount trunk |
| sudo umount "${FLAGS_chroot}/${CHROOT_TRUNK}" |
| |
| # Clean up the chroot mounts |
| trap - EXIT |
| cleanup |
| |
| if [[ "$FLAGS_chroot" = "$DEFAULT_CHROOT_DIR" ]]; then |
| CHROOT_EXAMPLE_OPT="" |
| else |
| CHROOT_EXAMPLE_OPT="--chroot=$FLAGS_chroot" |
| fi |
| |
| print_time_elapsed |
| |
| echo |
| echo "$SCRIPT_NAME: All set up. To enter the chroot, run:" |
| echo "$SCRIPT_NAME: $ cros_sdk --enter $CHROOT_EXAMPLE_OPT" |
| echo "" |
| echo "CAUTION: Do *NOT* rm -rf the chroot directory; if there are stale bind" |
| echo "mounts you may end up deleting your source tree too. To unmount and" |
| echo "delete the chroot cleanly, use:" |
| echo "$ $SCRIPT_NAME --delete $CHROOT_EXAMPLE_OPT" |