+ if [ "$SAVE_INSTALLED_PKGS" -eq 1 ]; then
+ echo "${INSTALLED_PACKAGES}" >> "$CONFFILES"
+ mkdir -p "$ETCBACKUP_DIR"
+ # Avoid touching filesystem on each backup
+ RAMFS="$(mktemp -d -t sysupgrade.XXXXXX)"
+ mkdir -p "$RAMFS/upper" "$RAMFS/work"
+ mount -t overlay overlay -o lowerdir=$ETCBACKUP_DIR,upperdir=$RAMFS/upper,workdir=$RAMFS/work $ETCBACKUP_DIR &&
+ UMOUNT_ETCBACKUP_DIR=1 || {
+ echo "Cannot mount '$ETCBACKUP_DIR' as tmpfs to avoid touching disk while saving the list of installed packages." >&2
+ ask_bool 0 "Abort" && exit
+ }
+
+ # Format: pkg-name<TAB>{rom,overlay,unkown}
+ # rom is used for pkgs in /rom, even if updated later
+ find /usr/lib/opkg/info -name "*.control" \( \
+ \( -exec test -f /rom/{} \; -exec echo {} rom \; \) -o \
+ \( -exec test -f /overlay/upper/{} \; -exec echo {} overlay \; \) -o \
+ \( -exec echo {} unknown \; \) \
+ \) | sed -e 's,.*/,,;s/\.control /\t/' > ${INSTALLED_PACKAGES}
+ fi
+