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-rwxr-xr-xpackage/base-files/files/sbin/sysupgrade36
1 files changed, 35 insertions, 1 deletions
diff --git a/package/base-files/files/sbin/sysupgrade b/package/base-files/files/sbin/sysupgrade
index 55c323d001..58b613b5a0 100755
--- a/package/base-files/files/sbin/sysupgrade
+++ b/package/base-files/files/sbin/sysupgrade
@@ -11,6 +11,7 @@ export SAVE_CONFIG=1
export SAVE_OVERLAY=0
export SAVE_OVERLAY_PATH=
export SAVE_PARTITIONS=1
+export SAVE_INSTALLED_PKGS=0
export SKIP_UNCHANGED=0
export CONF_IMAGE=
export CONF_BACKUP_LIST=0
@@ -20,6 +21,7 @@ export NEED_IMAGE=
export HELP=0
export FORCE=0
export TEST=0
+export UMOUNT_ETCBACKUP_DIR=0
# parse options
while [ -n "$1" ]; do
@@ -31,6 +33,7 @@ while [ -n "$1" ]; do
-c) export SAVE_OVERLAY=1 SAVE_OVERLAY_PATH=/etc;;
-o) export SAVE_OVERLAY=1 SAVE_OVERLAY_PATH=/;;
-p) export SAVE_PARTITIONS=0;;
+ -k) export SAVE_INSTALLED_PKGS=1;;
-u) export SKIP_UNCHANGED=1;;
-b|--create-backup) export CONF_BACKUP="$2" NEED_IMAGE=1; shift;;
-r|--restore-backup) export CONF_RESTORE="$2" NEED_IMAGE=1; shift;;
@@ -50,13 +53,15 @@ done
export CONFFILES=/tmp/sysupgrade.conffiles
export CONF_TAR=/tmp/sysupgrade.tgz
+export ETCBACKUP_DIR=/etc/backup
+export INSTALLED_PACKAGES=${ETCBACKUP_DIR}/installed_packages.txt
IMAGE="$1"
[ -z "$IMAGE" -a -z "$NEED_IMAGE" -a $CONF_BACKUP_LIST -eq 0 -o $HELP -gt 0 ] && {
cat <<EOF
Usage: $0 [<upgrade-option>...] <image file or URL>
- $0 [-q] [-i] [-c] [-u] [-o] <backup-command> <file>
+ $0 [-q] [-i] [-c] [-u] [-o] [-k] <backup-command> <file>
upgrade-option:
-f <config> restore configuration from .tar.gz (file or url)
@@ -67,6 +72,8 @@ upgrade-option:
-u skip from backup files that are equal to those in /rom
-n do not save configuration over reflash
-p do not attempt to restore the partition table after flash.
+ -k include in backup a list of current installed packages at
+ $INSTALLED_PACKAGES
-T | --test
Verify image and config .tar.gz but do not actually flash.
-F | --force
@@ -174,6 +181,7 @@ add_overlayfiles() {
-e '\,^/etc/board.json$,d' \
-e '\,/[^/]*-opkg$,d' \
-e '\,^/etc/urandom.seed$,d' \
+ -e "\,^$INSTALLED_PACKAGES$,d" \
-e '\,^/usr/lib/opkg/.*,d' \
) | grep -v -x -F -f $packagesfiles > "$file"
@@ -218,6 +226,27 @@ do_save_conffiles() {
run_hooks "$CONFFILES" $sysupgrade_init_conffiles
ask_bool 0 "Edit config file list" && vi "$CONFFILES"
+ 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/' > ${INSTALLED_PACKAGES}
+ fi
+
v "Saving config files..."
[ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
tar c${TAR_V}zf "$conf_tar" -T "$CONFFILES" 2>/dev/null
@@ -227,11 +256,16 @@ do_save_conffiles() {
exit 1
fi
+ [ "$UMOUNT_ETCBACKUP_DIR" -eq 1 ] && {
+ umount "$ETCBACKUP_DIR"
+ rm -rf "$RAMFS"
+ }
rm -f "$CONFFILES"
}
if [ $CONF_BACKUP_LIST -eq 1 ]; then
run_hooks "$CONFFILES" $sysupgrade_init_conffiles
+ [ "$SAVE_INSTALLED_PKGS" -eq 1 ] && echo ${INSTALLED_PACKAGES} >> "$CONFFILES"
cat "$CONFFILES"
rm -f "$CONFFILES"
exit 0