Adding upstream version 3.0~a31.

[live-boot-grml.git] / bin / live-snapshot

diff --git a/bin/live-snapshot b/bin/live-snapshot
index ca495fb..46ae597 100755 (executable)
--- a/bin/live-snapshot
+++ b/bin/live-snapshot
@@ -3,7 +3,7 @@
 # live-snapshot - utility to manage Debian Live systems snapshots
 #
 #   This program mounts a device (fallback to /tmpfs under $MOUNTP
-#   and saves the /live/cow (or a different directory) filesystem in it
+#   and saves the /live/overlway (or a different directory) filesystem in it
 #   for reuse in another live-boot session.
 #   Look at the manpage for more informations.
 #
@@ -37,7 +37,39 @@ else
        set -e
 fi
 
-. /usr/share/initramfs-tools/scripts/live-helpers
+## Begin FIXME: this is an embedded copy of the old 'live-helpers' initramfs script
+if [ ! -x "/bin/fstype" ]
+then
+       # klibc not in path -> not in initramfs
+       export PATH="${PATH}:/usr/lib/klibc/bin"
+fi
+
+# handle upgrade path from old udev (using udevinfo) to
+# recent versions of udev (using udevadm info)
+if [ -x /sbin/udevadm ]
+then
+       udevinfo='/sbin/udevadm info'
+else
+       udevinfo='udevinfo'
+fi
+
+old_root_overlay_label="live-rw"
+old_home_overlay_label="home-rw"
+custom_overlay_label="custom-ov"
+root_snapshot_label="live-sn"
+old_root_snapshot_label="live-sn"
+home_snapshot_label="home-sn"
+persistence_list="live-persistence.conf"
+
+# include all scripts for the time being until snapshots are either dropped or cleaned up
+for _SCRIPT in /lib/live/boot/*
+do
+       if [ -e "${_SCRIPT}" ]
+       then
+               . ${_SCRIPT}
+       fi
+done
+## End FIXME: this is an embedded copy of the old 'live-helpers' initramfs script
 
 LIVE_CONF="/etc/live/boot.d/snapshot.conf"
 
@@ -57,7 +89,7 @@ SAFE_TMPDIR="/live"
 # Permits multiple runs
 MOUNTP="$(mktemp -d -p ${SAFE_TMPDIR} live-snapshot-mnt.XXXXXX)"
 DEST="${MOUNTP}/live-sn.cpio.gz"
-DEF_SNAP_COW="/live/cow"
+DEF_SNAP_COW="/live/overlay"
 TMP_FILELIST="${PROGRAM}.list"
 
 # Command line defaults and declarations
@@ -155,12 +187,12 @@ Try_refresh ()
        FOUND=""
        if [ -n "${ROOTSNAP}" ]; then
                "${EXECUTABLE}" --resync-string="${ROOTSNAP}"
-               FOUND="Yes"
+               FOUND="true"
        fi
 
        if [ -n "${HOMESNAP}" ]; then
                "${EXECUTABLE}" --resync-string="${HOMESNAP}"
-               FOUND="Yes"
+               FOUND="true"
        fi
 
        if [ -z "${FOUND}" ]
@@ -365,7 +397,7 @@ Do_filelist ()
 
        if [ -f "${SNAP_LIST}" ]
        then
-               # if SNAP_COW == /live/cow/home, SNAP_RW = /home
+               # if SNAP_COW == /live/overlay/home, SNAP_RW = /home
                SNAP_RW=$(echo "${SNAP_COW}" | sed -e "s|${DEF_SNAP_COW}||g")
                if [ -z "${SNAP_RW}" ]
                then
@@ -517,9 +549,9 @@ Warn_user ()
                                ;;
                esac
 
-               if grep -qv persistent /proc/cmdline
+               if grep -qv persistence /proc/cmdline
                then
-                       echo "Remember to boot this live system with \"persistent\" specified at boot prompt." > /dev/null 1>&2
+                       echo "Remember to boot this live system with \"persistence\" specified at boot prompt." > /dev/null 1>&2
                fi
        fi
 }