[package] base-files: Fix sysupgrade .tar.gz configuration restoring

[openwrt.git] / package / base-files / files / lib / upgrade / common.sh

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index d0ae8fe..06c257b 100644 (file)
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -105,26 +105,26 @@ rootfs_type() {
 
 get_image() { # <source> [ <command> ]
        local from="$1"
-       local cmd="$2"
-       local conc
-
-       if [ -z "$cmd" ]; then
-               case "$from" in
-                       http://*|ftp://*) cmd="wget -O- -q";;
-                       *) cmd="cat";;
-               esac
+       local conc="$2"
+       local cmd
+
+       case "$from" in
+               http://*|ftp://*) cmd="wget -O- -q";;
+               *) cmd="cat";;
+       esac
+       if [ -z "$conc" ]; then
                local magic="$(eval $cmd $from | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
                case "$magic" in
-                       1f8b) conc="| zcat";;
-                       425a) conc="| bzcat";;
+                       1f8b) conc="zcat";;
+                       425a) conc="bzcat";;
                esac
        fi
 
-       eval "$cmd $from $conc"
+       eval "$cmd $from ${conc:+| $conc}"
 }
 
 get_magic_word() {
-       get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"'
+       get_image "$@" | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"'
 }
 
 refresh_mtd_partitions() {
@@ -142,12 +142,12 @@ jffs2_copy_config() {
 }
 
 default_do_upgrade() {
+       sync
        if [ "$SAVE_CONFIG" -eq 1 -a -z "$USE_REFRESH" ]; then
                get_image "$1" | mtd -j "$CONF_TAR" write - "${PART_NAME:-image}"
        else
                get_image "$1" | mtd write - "${PART_NAME:-image}"
        fi
-       sync
 }
 
 do_upgrade() {
@@ -157,7 +157,7 @@ do_upgrade() {
        else
                default_do_upgrade "$ARGV"
        fi
-       
+
        [ "$SAVE_CONFIG" -eq 1 -a -n "$USE_REFRESH" ] && {
                v "Refreshing partitions"
                if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
@@ -175,7 +175,8 @@ do_upgrade() {
        [ -n "$DELAY" ] && sleep "$DELAY"
        ask_bool 1 "Reboot" && {
                v "Rebooting system..."
-               echo b 2>/dev/null >/proc/sysrq-trigger
                reboot
+               sleep 5
+               echo b 2>/dev/null >/proc/sysrq-trigger
        }
 }