kernel: add md5sum of kernel

[openwrt.git] / package / base-files / files / sbin / sysupgrade

diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 2230e5b..3d76bb3 100755 (executable)
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -7,7 +7,9 @@ RAMFS_COPY_DATA=""      # extra data files
 export INTERACTIVE=0
 export VERBOSE=1
 export SAVE_CONFIG=1
+export SAVE_OVERLAY=0
 export DELAY=
+export CONF_IMAGE=
 
 # parse options
 while [ -n "$1" ]; do 
@@ -17,6 +19,8 @@ while [ -n "$1" ]; do
                -v) export VERBOSE="$(($VERBOSE + 1))";;
                -q) export VERBOSE="$(($VERBOSE - 1))";;
                -n) export SAVE_CONFIG=0;;
+               -c) export SAVE_OVERLAY=1;;
+               -f) export CONF_IMAGE="$2"; shift;;
                -*)
                        echo "Invalid option: $1"
                        exit 1
@@ -38,8 +42,10 @@ Usage: $0 [options] <image file or URL>
 
 Options:
        -d <delay>   add a delay before rebooting
+       -f <config>  restore configuration from .tar.gz (file or url)
        -i           interactive mode
-       -n           do not save configuration over reflash
+       -c           attempt to preserve all changed files in /etc/
+       -n           do not save configuration over reflash
        -q           less verbose
        -v           more verbose
 
@@ -49,13 +55,29 @@ EOF
 
 add_uci_conffiles() {
        local file="$1"
-       find /etc/config /etc/passwd /etc/group /etc/dropbear /etc/firewall.user > "$file"
+       ( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
+               /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
+               -type f 2>/dev/null;
+         opkg list-changed-conffiles ) | sort -u > "$file"
+       return 0
+}
+
+add_overlayfiles() {
+       local file="$1"
+       find /overlay/etc/ -type f | sed \
+               -e 's,^/overlay/,/,' \
+               -e '\,/META_[a-zA-Z0-9]*$,d' \
+               -e '\,/functions.sh$,d' \
+               -e '\,/[^/]*-opkg$,d' \
+       > "$file"
        return 0
 }
 
 # hooks
 sysupgrade_image_check="platform_check_image"
-sysupgrade_init_conffiles="add_uci_conffiles"
+[ $SAVE_OVERLAY = 0 -o ! -d /overlay/etc ] && \
+       sysupgrade_init_conffiles="add_uci_conffiles" || \
+       sysupgrade_init_conffiles="add_overlayfiles"
 
 include /lib/upgrade
 
@@ -85,7 +107,18 @@ for check in $sysupgrade_image_check; do
        }
 done
 
-if ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
+if [ -n "$CONF_IMAGE" ]; then
+       case "$(get_magic_word $CONF_IMAGE cat)" in
+               # .gz files
+               1f8b) ;;
+               *)
+                       echo "Invalid config file. Please use only .tar.gz files"
+                       exit 1
+               ;;
+       esac
+       get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
+       export SAVE_CONFIG=1
+elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
        do_save_conffiles
        export SAVE_CONFIG=1
 else
@@ -93,5 +126,9 @@ else
 fi
 run_hooks "" $sysupgrade_pre_upgrade
 
-v "Switching to ramdisk..."
-run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
+if [ -n "$(rootfs_type)" ]; then
+       v "Switching to ramdisk..."
+       run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
+else
+       do_upgrade
+fi