. /lib/functions/system.sh
# initialize defaults
+export MTD_ARGS=""
export MTD_CONFIG_ARGS=""
export INTERACTIVE=0
export VERBOSE=1
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
export CONF_BACKUP=
export HELP=0
export FORCE=0
export TEST=0
+export UMOUNT_ETCBACKUP_DIR=0
# parse options
while [ -n "$1" ]; do
-v) export VERBOSE="$(($VERBOSE + 1))";;
-q) export VERBOSE="$(($VERBOSE - 1))";;
-n) export SAVE_CONFIG=0;;
- -c) export SAVE_OVERLAY=1;;
+ -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="$2" NEED_IMAGE=1; shift;;
-l|--list-backup) export CONF_BACKUP_LIST=1;;
export CONFFILES=/tmp/sysupgrade.conffiles
export CONF_TAR=/tmp/sysupgrade.tgz
+export ETCBACKUP_DIR=/etc/backup
+export INSTALLED_PACKAGES=${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] <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)
-i interactive mode
-c attempt to preserve all changed files in /etc/
+ -o attempt to preserve all changed files in /, except those
+ from packages but including changed confs.
+ -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
local file="$1"
( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
/etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
- -type f -o -type l 2>/dev/null;
+ \( -type f -o -type l \) $find_filter 2>/dev/null;
list_changed_conffiles ) | sort -u > "$file"
return 0
}
add_overlayfiles() {
local file="$1"
- find /overlay/upper/etc/ -type f -o -type l | sed \
- -e 's,^/overlay\/upper/,/,' \
- -e '\,/META_[a-zA-Z0-9]*$,d' \
- -e '\,/functions.sh$,d' \
+
+ local packagesfiles=$1.packagesfiles
+ touch "$packagesfiles"
+
+ if [ "$SAVE_OVERLAY_PATH" = / ]; then
+ local conffiles=$1.conffiles
+ local keepfiles=$1.keepfiles
+
+ list_conffiles | cut -f2 -d ' ' | sort -u > "$conffiles"
+
+ # backup files from /etc/sysupgrade.conf and /lib/upgrade/keep.d, but
+ # ignore those aready controlled by opkg conffiles
+ find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
+ /etc/sysupgrade.conf /lib/upgrade/keep.d/* 2>/dev/null) \
+ \( -type f -o -type l \) 2>/dev/null | sort -u |
+ grep -h -v -x -F -f $conffiles > "$keepfiles"
+
+ # backup conffiles, but only those changed if '-u'
+ [ $SKIP_UNCHANGED = 1 ] &&
+ list_changed_conffiles | sort -u > "$conffiles"
+
+ # do not backup files from packages, except those listed
+ # in conffiles and keep.d
+ {
+ find /usr/lib/opkg/info -type f -name "*.list" -exec cat {} \;
+ find /usr/lib/opkg/info -type f -name "*.control" -exec sed \
+ -ne '/^Alternatives/{s/^Alternatives: //;s/, /\n/g;p}' {} \; |
+ cut -f2 -d:
+ } | grep -v -x -F -f $conffiles |
+ grep -v -x -F -f $keepfiles | sort -u > "$packagesfiles"
+ rm -f "$keepfiles" "$conffiles"
+ fi
+
+ # busybox grep bug when file is empty
+ [ -s "$packagesfiles" ] || echo > $packagesfiles
+
+ ( cd /overlay/upper/; find .$SAVE_OVERLAY_PATH \( -type f -o -type l \) $find_filter | sed \
+ -e 's,^\.,,' \
+ -e '\,^/etc/board.json$,d' \
-e '\,/[^/]*-opkg$,d' \
- -e '\,/etc/urandom.seed$,d' \
- > "$file"
+ -e '\,^/etc/urandom.seed$,d' \
+ -e "\,^$INSTALLED_PACKAGES$,d" \
+ -e '\,^/usr/lib/opkg/.*,d' \
+ ) | grep -v -x -F -f $packagesfiles > "$file"
+
+ rm -f "$packagesfiles"
+
return 0
}
sysupgrade_init_conffiles="add_conffiles"
fi
+find_filter=""
+if [ $SKIP_UNCHANGED = 1 ]; then
+ [ ! -d /rom/ ] && {
+ echo "'/rom/' is required by '-u'"
+ exit 1
+ }
+ find_filter='( ( -exec test -e /rom/{} ; -exec cmp -s /{} /rom/{} ; ) -o -print )'
+fi
+
include /lib/upgrade
do_save_conffiles() {
run_hooks "$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 "$CONFFILES" 2>/dev/null
exit 1
fi
+ [ "$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
;;
esac
-export ARGV="$IMAGE"
-export ARGC=1
-
for check in $sysupgrade_image_check; do
( $check "$IMAGE" ) || {
if [ $FORCE -eq 1 ]; then
exit 0
fi
-if [ $SAVE_PARTITIONS -eq 0 ]; then
- touch /tmp/sysupgrade.always.overwrite.bootdisk.partmap
-else
- rm -f /tmp/sysupgrade.always.overwrite.bootdisk.partmap
-fi
-
install_bin /sbin/upgraded
v "Commencing upgrade. Closing all shell sessions."
-COMMAND='. /lib/functions.sh; include /lib/upgrade; do_upgrade_stage2'
+COMMAND='/lib/upgrade/do_stage2'
if [ -n "$FAILSAFE" ]; then
printf '%s\x00%s\x00%s' "$RAM_ROOT" "$IMAGE" "$COMMAND" >/tmp/sysupgrade
ubus call system sysupgrade "{
\"prefix\": $(json_string "$RAM_ROOT"),
\"path\": $(json_string "$IMAGE"),
- \"command\": $(json_string "$COMMAND")
+ \"command\": $(json_string "$COMMAND"),
+ \"options\": {
+ \"save_config\": $SAVE_CONFIG,
+ \"save_partitions\": $SAVE_PARTITIONS
+ }
}"
fi
projects / openwrt / openwrt.git / blobdiff