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@ -41,7 +41,7 @@ Setup_cleanup
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. config/functions
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lb_chroot_remove_packages() {
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lb_chroot_remove_packages () {
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# Remove packages from the chroot specific to this layer
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#
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# $1: Name of the pass*
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@ -54,28 +54,28 @@ lb_chroot_remove_packages() {
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}
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# Create the snap list specific to this layer
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lb_chroot_snap_lists() {
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lb_chroot_snap_lists () {
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local pass=$1
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local prevpass=$2
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# This assumes that the prefix is unique for a given project
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local snap_for_pass=$(ls config/package-lists/*.snaplist.chroot_${pass}.full 2>/dev/null || true)
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local snap_for_prevpass=$(ls config/package-lists/*.snaplist.chroot_${prevpass}.full 2>/dev/null || true)
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parent_pass=$(get_parent_pass $pass)
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local snap_for_parent_pass=$(ls config/package-lists/*.snaplist.chroot_${parent_pass}.full 2>/dev/null || true)
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if [ -z "${snap_for_pass}" ]; then
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return
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fi
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if [ -z "${snap_for_prevpass}" ]; then
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if [ -z "${snap_for_parent_pass}" ]; then
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cp ${snap_for_pass} ${snap_for_pass%.full}
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return
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fi
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# Generate a list of snaps added to a layer.
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diff -NU0 ${snap_for_prevpass} ${snap_for_pass}|grep -Ev '^(---|\+\+\+|@@)'|cut -c2- > ${snap_for_pass%.full}
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diff -NU0 ${snap_for_parent_pass} ${snap_for_pass}|grep -Ev '^(---|\+\+\+|@@)'|cut -c2- > ${snap_for_pass%.full}
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}
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lb_chroot_install_snaps() {
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lb_chroot_install_snaps () {
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# Prepare the snap environment and install snaps into a chroot
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#
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# $1: Name of the pass
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@ -93,7 +93,7 @@ lb_chroot_install_snaps() {
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done < $snaplist_file
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}
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lb_chroot_includes() {
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lb_chroot_includes () {
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# Copying includes from pass subdirectory
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local pass="$1"
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@ -106,30 +106,47 @@ lb_chroot_includes() {
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cd "${OLDPWD}"
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}
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create_chroot_pass() {
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create_chroot_pass () {
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local pass=$1
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local prevpass=$2
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local lowerlayers=$3
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local passtype=$4 # "first"|"last"|"" empty string
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shift 4 # restore ${*}
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shift 1 # restore ${*}
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# We have already treated that pass
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if [ -d "overlay.${pass}/" ]; then
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Echo_message "lb_chroot_layered: treating pass $pass"
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# We have already treated that pass just return.
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local overlay_dir="overlay.${pass}"
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if [ -d "$overlay_dir/" ]; then
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return
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fi
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export PASS=${pass}
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if [ "${passtype}" != "first" ]; then
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mkdir overlay.${pass}
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mount_overlay ${lowerlayers} "overlay.${pass}/" chroot/
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# Only get some function executed on root passes
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# Copy bootstrap on root layers
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if [ -z "$(get_parent_pass $pass)" ]; then
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rm -f .build/chroot_linux-image .build/chroot_preseed .build/chroot_hacks
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cp -a chroot.bootstrap/ "$overlay_dir/"
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fi
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# Others have to be executed on every pass
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rm -f .build/chroot_early_hooks .build/chroot_hooks .build/chroot_interactive
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mkdir -p "$overlay_dir/"
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lowerdirs=$(get_lowerdirs_for_pass $pass)
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if [ -n "$lowerdirs" ]; then
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mkdir -p chroot/
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mount_overlay "$lowerdirs" "$overlay_dir" chroot/
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else
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ln -s "$overlay_dir/" chroot
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fi
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export PASS=${pass}
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setenv_file PASS "${pass}" config/environment.chroot
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# Configuring chroot
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lb chroot_cache restore ${*}
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lb chroot_devpts install ${*}
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lb chroot_proc install ${*}
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lb chroot_sysfs install ${*}
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# We run chroot_hacks only on root layers (update-initramfs diverted)
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if [ -z "$(get_parent_pass $pass)" ]; then
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divert_update_initramfs
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fi
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lb chroot_debianchroot install ${*}
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lb chroot_dpkg install ${*}
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lb chroot_tmpfs install ${*}
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@ -140,10 +157,11 @@ create_chroot_pass() {
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# Note: this triggers an upgrade + dist-ugprade; which may impact sublayers with more
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# diff content than desired. However, we still need to setup the archive and teardown
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# for each layer.
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# We could modify livebuild if necessary to have conditional upgrade (first pass only).
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# We could modify livebuild if necessary to have conditional upgrade (root pass only).
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lb chroot_archives chroot install ${*}
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if [ "${passtype}" = "first" ]; then
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# Only configure universe on root passes
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if [ -z "$(get_parent_pass $pass)" ]; then
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configure_universe
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fi
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@ -157,23 +175,22 @@ create_chroot_pass() {
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lb_chroot_remove_packages ${pass} ${*}
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# Snap management
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lb_chroot_snap_lists ${pass} ${prevpass}
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lb_chroot_snap_lists ${pass} ${*}
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lb_chroot_install_snaps ${pass} ${*}
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# Kernel should be in first layer
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if [ "${passtype}" = "first" ]; then
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configure_network_manager
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# Mark kernel headers as autoremovable
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Chroot chroot "dpkg -l linux-headers-3* linux-headers-4*" 2>/dev/null \
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| awk '/^i/ {print $2}' > chroot.headers
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for i in $(cat chroot.headers); do
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Chroot chroot "apt-mark auto $i"
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done
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fi
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Chroot chroot "apt-get --purge -y autoremove"
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# Add live packages to top layer
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if [ "${passtype}" = "last" ]; then
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# Add live packages to live layers
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if echo $pass | grep -Eq '\.live*'; then
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lb chroot_live-packages ${*}
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fi
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@ -181,7 +198,14 @@ create_chroot_pass() {
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lb_chroot_includes ${pass} ${*}
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lb chroot_hooks ${*}
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# Run chroot_hacks only on root layers.
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# chroot_hacks changes the mode of boot/initrd*. The side effect in
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# layered mode is to create an initrd on each layer with a significant
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# impact on image size (+30MB per layer). This is an issue even with
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# update-initramfs disabled.
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lb chroot_hacks ${*}
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lb chroot_interactive ${*}
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# Misc ubuntu cleanup and post-layer configuration
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@ -202,45 +226,19 @@ create_chroot_pass() {
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lb chroot_sysfs remove ${*}
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lb chroot_proc remove ${*}
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lb chroot_devpts remove ${*}
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lb chroot_cache save ${*}
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if [ "${passtype}" = "first" ]; then
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mv chroot overlay.${pass}
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mkdir chroot
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else
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if [ -n "$lowerdirs" ]; then
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umount chroot
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rmdir chroot
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else
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rm chroot
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fi
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# Handle direct sublayer of current one
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# Extract the name of the pass corresponding to the sublayer
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for subpass in $(ls config/package-lists/*list.chroot_${pass}_* 2>/dev/null | sed -e "s/.*list\.chroot_\(${pass}_[^_]\+\).*/\1/"); do
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lowerlayers_for_subpass="overlay.${pass}:${lowerlayers}"
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lowerlayers_for_subpass="${lowerlayers_for_subpass%:}"
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create_chroot_pass "${subpass}" "${pass}" "${lowerlayers_for_subpass}" "" ${*}
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done
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}
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PASSES="${PASSES:-install live}"
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CURPASS=1
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PREVPASS=""
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LASTPASS=$(echo $PASSES|wc -w)
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LOWER_LAYERS=""
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if [ ! -d chroot.bootstrap/ ]; then
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mv chroot/ chroot.bootstrap/
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fi
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for _PASS in $PASSES
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do
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PASSTYPE=""
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if [ $CURPASS -eq 1 ]; then
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PASSTYPE="first"
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elif [ $CURPASS -eq $LASTPASS ]; then
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PASSTYPE="last"
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fi
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create_chroot_pass "$_PASS" "$PREVPASS" "$LOWER_LAYERS" "$PASSTYPE" ${*}
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LOWER_LAYERS="overlay.${_PASS}:$LOWER_LAYERS"
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LOWER_LAYERS="${LOWER_LAYERS%:}"
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PREVPASS=${_PASS}
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CURPASS=$(( CURPASS + 1 ))
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create_chroot_pass "$_PASS" ${*}
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done
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rmdir chroot
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Jean-Baptiste Lallement
6 years ago