diff --git a/raspi-config b/raspi-config index 25f8e4e1..97f6d310 100755 --- a/raspi-config +++ b/raspi-config @@ -2547,7 +2547,7 @@ enable_overlayfs() { BOOTRO=no fi - cat > /etc/initramfs-tools/scripts/overlay << 'EOF' + sed -e "s!MOUNT_POINT!$MOUNT_POINT!g" > /etc/initramfs-tools/scripts/overlay << 'EOF' # Local filesystem mounting -*- shell-script -*- # @@ -2580,24 +2580,24 @@ local_mount_root() checkfs ${ROOT} root "${FSTYPE}" # Create directories for root and the overlay - mkdir /lower /upper + mkdir MOUNT_POINT/lower MOUNT_POINT/upper - # Mount read-only root to /lower + # Mount read-only root to MOUNT_POINT/lower if [ "${FSTYPE}" != "unknown" ]; then - mount -r -t ${FSTYPE} ${ROOTFLAGS} ${ROOT} /lower + mount -r -t ${FSTYPE} ${ROOTFLAGS} ${ROOT} MOUNT_POINT/lower else - mount -r ${ROOTFLAGS} ${ROOT} /lower + mount -r ${ROOTFLAGS} ${ROOT} MOUNT_POINT/lower fi - modprobe overlay || insmod "/lower/lib/modules/$(uname -r)/kernel/fs/overlayfs/overlay.ko" + modprobe overlay || insmod "MOUNT_POINT/lower/lib/modules/$(uname -r)/kernel/fs/overlayfs/overlay.ko" - # Mount a tmpfs for the overlay in /upper - mount -t tmpfs tmpfs /upper - mkdir /upper/data /upper/work + # Mount a tmpfs for the overlay in MOUNT_POINT/upper + mount -t tmpfs tmpfs MOUNT_POINT/upper + mkdir MOUNT_POINT/upper/data MOUNT_POINT/upper/work # Mount the final overlay-root in $rootmnt mount -t overlay \ - -olowerdir=/lower,upperdir=/upper/data,workdir=/upper/work \ + -olowerdir=MOUNT_POINT/lower,upperdir=MOUNT_POINT/upper/data,workdir=MOUNT_POINT/upper/work \ overlay ${rootmnt} } EOF @@ -2608,7 +2608,9 @@ EOF fi # build the new initramfs - update-initramfs -c -k "$KERN" + if ! update-initramfs -c -k "$KERN" ; then + echo "Failed to build the new initramfs ${KERN}" + fi # rename it so we know it has overlay added mv /boot/initrd.img-"$KERN" /boot/"$INITRD" @@ -2646,7 +2648,11 @@ disable_overlayfs() { # modify config.txt sed -i /boot/config.txt -e "/initramfs.*/d" - update-initramfs -d -k "${KERN}-overlay" + + # delete the existing initramfs + if ! update-initramfs -d -k "${KERN}-overlay" ; then + echo "Failed to delete initramfs ${KERN}-overlay" + fi # modify command line sed -i /boot/cmdline.txt -e "s/\(.*\)boot=overlay \(.*\)/\1\2/" @@ -2675,6 +2681,14 @@ disable_bootro() { } do_overlayfs() { + if [ "$INTERACTIVE" = False -a ! "$1" ]; then echo ' + do_overlayfs status [ writable [ invisible ] ] + "status" can be 0=enable or 1=disable overlayfs (default) + "writable" can be 0=read-only (default) or 1=writable boot partition + "invisible" (used when enabling the overlayfs) can be 0=visible mounts or 1=invisible mounts (default) +' + return 1 + fi DEFAULT=--defaultno CURRENT=0 STATUS="disabled" @@ -2695,7 +2709,26 @@ do_overlayfs() { else RET=$1 fi + case "$RET" in ''|*[!01]*) RET=1;; esac if [ $RET -eq $CURRENT ]; then + MOUNT_POINT="/run" + if [ "$INTERACTIVE" = True -a $RET -eq 0 ]; then + whiptail --yesno "Would you like the mount points of the overlay file system to be visible under '$MOUNT_POINT/upper' (rw) and '$MOUNT_POINT/lower' (ro)?" $DEFAULT 20 60 2 + MP=$? + else + MP=$3 + fi + case "$MP" in ''|*[!01]*) MP=1;; esac + if [ $MP -eq 1 ]; then + MOUNT_POINT="" + if [ "$INTERACTIVE" = False ]; then + echo "Invisible mount points" + fi + else + if [ "$INTERACTIVE" = False ]; then + echo "Mount points under '$MOUNT_POINT'" + fi + fi if [ $RET -eq 0 ]; then if enable_overlayfs; then STATUS="enabled" @@ -2739,12 +2772,16 @@ do_overlayfs() { whiptail --yesno "Would you like the boot partition to be write-protected?" $DEFAULT 20 60 2 RET=$? else - RET=$1 + RET=$2 fi + case "$RET" in ''|*[!01]*) RET=0;; esac if [ $RET -eq $CURRENT ]; then if [ $RET -eq 0 ]; then if enable_bootro; then STATUS="read-only" + if [ "$INTERACTIVE" = False ]; then + echo "Boot partition is $STATUS" + fi ASK_TO_REBOOT=1 else STATUS="unchanged" @@ -2752,6 +2789,9 @@ do_overlayfs() { elif [ $RET -eq 1 ]; then if disable_bootro; then STATUS="writable" + if [ "$INTERACTIVE" = False ]; then + echo "Boot partition is $STATUS" + fi ASK_TO_REBOOT=1 else STATUS="unchanged"