4 .
/lib
/functions
/system.sh
7 export MTD_CONFIG_ARGS
=""
12 export SAVE_OVERLAY_PATH
=
13 export SAVE_PARTITIONS
=1
14 export SAVE_INSTALLED_PKGS
=0
15 export SKIP_UNCHANGED
=0
17 export CONF_BACKUP_LIST
=0
24 export UMOUNT_ETCBACKUP_DIR
=0
29 -i) export INTERACTIVE
=1;;
30 -v) export VERBOSE
="$(($VERBOSE + 1))";;
31 -q) export VERBOSE
="$(($VERBOSE - 1))";;
32 -n) export SAVE_CONFIG
=0;;
33 -c) export SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/etc
;;
34 -o) export SAVE_OVERLAY
=1 SAVE_OVERLAY_PATH
=/;;
35 -p) export SAVE_PARTITIONS
=0;;
36 -k) export SAVE_INSTALLED_PKGS
=1;;
37 -u) export SKIP_UNCHANGED
=1;;
38 -b|
--create-backup) export CONF_BACKUP
="$2" NEED_IMAGE
=1; shift;;
39 -r|
--restore-backup) export CONF_RESTORE
="$2" NEED_IMAGE
=1; shift;;
40 -l|
--list-backup) export CONF_BACKUP_LIST
=1;;
41 -f) export CONF_IMAGE
="$2"; shift;;
42 -F|
--force) export FORCE
=1;;
43 -T|
--test) export TEST
=1;;
44 -h|
--help) export HELP
=1; break;;
46 echo "Invalid option: $1" >&2
54 export CONFFILES
=/tmp
/sysupgrade.conffiles
55 export CONF_TAR
=/tmp
/sysupgrade.tgz
56 export ETCBACKUP_DIR
=/etc
/backup
57 export INSTALLED_PACKAGES
=${ETCBACKUP_DIR}/installed_packages.txt
61 [ -z "$IMAGE" -a -z "$NEED_IMAGE" -a $CONF_BACKUP_LIST -eq 0 -o $HELP -gt 0 ] && {
63 Usage: $0 [<upgrade-option>...] <image file or URL>
64 $0 [-q] [-i] [-c] [-u] [-o] [-k] <backup-command> <file>
67 -f <config> restore configuration from .tar.gz (file or url)
69 -c attempt to preserve all changed files in /etc/
70 -o attempt to preserve all changed files in /, except those
71 from packages but including changed confs.
72 -u skip from backup files that are equal to those in /rom
73 -n do not save configuration over reflash
74 -p do not attempt to restore the partition table after flash.
75 -k include in backup a list of current installed packages at
78 Verify image and config .tar.gz but do not actually flash.
80 Flash image even if image checks fail, this is dangerous!
83 -h | --help display this help
86 -b | --create-backup <file>
87 create .tar.gz of files specified in sysupgrade.conf
88 then exit. Does not flash an image. If file is '-',
89 i.e. stdout, verbosity is set to 0 (i.e. quiet).
90 -r | --restore-backup <file>
91 restore a .tar.gz created with sysupgrade -b
92 then exit. Does not flash an image. If file is '-',
93 the archive is read from stdin.
95 list the files that would be backed up when calling
96 sysupgrade -b. Does not create a backup file.
102 [ -n "$IMAGE" -a -n "$NEED_IMAGE" ] && {
104 -b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
105 Do not specify both -b|-r and a firmware image.
110 # prevent messages from clobbering the tarball when using stdout
111 [ "$CONF_BACKUP" = "-" ] && export VERBOSE
=0
116 BEGIN { conffiles = 0 }
117 /^Conffiles:/ { conffiles = 1; next }
118 !/^ / { conffiles = 0; next }
119 conffiles == 1 { print }
120 ' /usr
/lib
/opkg
/status
123 list_changed_conffiles
() {
124 # Cannot handle spaces in filenames - but opkg cannot either...
125 list_conffiles |
while read file csum
; do
126 [ -r "$file" ] ||
continue
128 echo "${csum} ${file}" | sha256sum
-sc - ||
echo "$file"
134 ( find $
(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
135 /etc
/sysupgrade.conf
/lib
/upgrade
/keep.d
/* 2>/dev
/null
) \
136 \
( -type f
-o -type l \
) $find_filter 2>/dev
/null
;
137 list_changed_conffiles
) |
sort -u > "$file"
144 local packagesfiles
=$1.packagesfiles
145 touch "$packagesfiles"
147 if [ "$SAVE_OVERLAY_PATH" = / ]; then
148 local conffiles
=$1.conffiles
149 local keepfiles
=$1.keepfiles
151 list_conffiles | cut
-f2 -d ' ' |
sort -u > "$conffiles"
153 # backup files from /etc/sysupgrade.conf and /lib/upgrade/keep.d, but
154 # ignore those aready controlled by opkg conffiles
155 find $
(sed -ne '/^[[:space:]]*$/d; /^#/d; p' \
156 /etc
/sysupgrade.conf
/lib
/upgrade
/keep.d
/* 2>/dev
/null
) \
157 \
( -type f
-o -type l \
) 2>/dev
/null |
sort -u |
158 grep -h -v -x -F -f $conffiles > "$keepfiles"
160 # backup conffiles, but only those changed if '-u'
161 [ $SKIP_UNCHANGED = 1 ] &&
162 list_changed_conffiles |
sort -u > "$conffiles"
164 # do not backup files from packages, except those listed
165 # in conffiles and keep.d
167 find /usr
/lib
/opkg
/info
-type f
-name "*.list" -exec cat {} \
;
168 find /usr
/lib
/opkg
/info
-type f
-name "*.control" -exec sed \
169 -ne '/^Alternatives/{s/^Alternatives: //;s/, /\n/g;p}' {} \
; |
171 } |
grep -v -x -F -f $conffiles |
172 grep -v -x -F -f $keepfiles |
sort -u > "$packagesfiles"
173 rm -f "$keepfiles" "$conffiles"
176 # busybox grep bug when file is empty
177 [ -s "$packagesfiles" ] ||
echo > $packagesfiles
179 ( cd /overlay
/upper
/; find .
$SAVE_OVERLAY_PATH \
( -type f
-o -type l \
) $find_filter |
sed \
181 -e '\,^/etc/board.json$,d' \
182 -e '\,/[^/]*-opkg$,d' \
183 -e '\,^/etc/urandom.seed$,d' \
184 -e "\,^$INSTALLED_PACKAGES$,d" \
185 -e '\,^/usr/lib/opkg/.*,d' \
186 ) |
grep -v -x -F -f $packagesfiles > "$file"
188 rm -f "$packagesfiles"
194 sysupgrade_image_check
="fwtool_check_signature fwtool_check_image platform_check_image"
196 if [ $SAVE_OVERLAY = 1 ]; then
197 [ ! -d /overlay
/upper
/etc
] && {
198 echo "Cannot find '/overlay/upper/etc', required for '-c'" >&2
201 sysupgrade_init_conffiles
="add_overlayfiles"
203 sysupgrade_init_conffiles
="add_conffiles"
207 if [ $SKIP_UNCHANGED = 1 ]; then
209 echo "'/rom/' is required by '-u'"
212 find_filter
='( ( -exec test -e /rom/{} ; -exec cmp -s /{} /rom/{} ; ) -o -print )'
217 do_save_conffiles
() {
220 [ -z "$(rootfs_type)" ] && {
221 echo "Cannot save config while running from ramdisk." >&2
222 ask_bool
0 "Abort" && exit
226 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
227 ask_bool
0 "Edit config file list" && vi
"$CONFFILES"
229 if [ "$SAVE_INSTALLED_PKGS" -eq 1 ]; then
230 echo "${INSTALLED_PACKAGES}" >> "$CONFFILES"
231 mkdir
-p "$ETCBACKUP_DIR"
232 # Avoid touching filesystem on each backup
233 RAMFS
="$(mktemp -d -t sysupgrade.XXXXXX)"
234 mkdir
-p "$RAMFS/upper" "$RAMFS/work"
235 mount
-t overlay overlay
-o lowerdir
=$ETCBACKUP_DIR,upperdir
=$RAMFS/upper
,workdir
=$RAMFS/work
$ETCBACKUP_DIR &&
236 UMOUNT_ETCBACKUP_DIR
=1 ||
{
237 echo "Cannot mount '$ETCBACKUP_DIR' as tmpfs to avoid touching disk while saving the list of installed packages." >&2
238 ask_bool
0 "Abort" && exit
241 # Format: pkg-name<TAB>{rom,overlay,unkown}
242 # rom is used for pkgs in /rom, even if updated later
243 find /usr
/lib
/opkg
/info
-name "*.control" \
( \
244 \
( -exec test -f /rom
/{} \
; -exec echo {} rom \
; \
) -o \
245 \
( -exec test -f /overlay
/upper
/{} \
; -exec echo {} overlay \
; \
) -o \
246 \
( -exec echo {} unknown \
; \
) \
247 \
) |
sed -e 's,.*/,,;s/\.control /\t/' > ${INSTALLED_PACKAGES}
250 v
"Saving config files..."
251 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
252 tar c
${TAR_V}zf
"$conf_tar" -T "$CONFFILES" 2>/dev
/null
253 if [ "$?" -ne 0 ]; then
254 echo "Failed to create the configuration backup."
259 [ "$UMOUNT_ETCBACKUP_DIR" -eq 1 ] && {
260 umount
"$ETCBACKUP_DIR"
266 if [ $CONF_BACKUP_LIST -eq 1 ]; then
267 run_hooks
"$CONFFILES" $sysupgrade_init_conffiles
268 [ "$SAVE_INSTALLED_PKGS" -eq 1 ] && echo ${INSTALLED_PACKAGES} >> "$CONFFILES"
274 if [ -n "$CONF_BACKUP" ]; then
275 do_save_conffiles
"$CONF_BACKUP"
279 if [ -n "$CONF_RESTORE" ]; then
280 if [ "$CONF_RESTORE" != "-" ] && [ ! -f "$CONF_RESTORE" ]; then
281 echo "Backup archive '$CONF_RESTORE' not found." >&2
285 [ "$VERBOSE" -gt 1 ] && TAR_V
="v" || TAR_V
=""
286 tar -C / -x${TAR_V}zf
"$CONF_RESTORE"
290 type platform_check_image
>/dev
/null
2>/dev
/null ||
{
291 echo "Firmware upgrade is not implemented for this platform." >&2
298 wget
-O/tmp
/sysupgrade.img
"$IMAGE"
299 IMAGE
=/tmp
/sysupgrade.img
303 IMAGE
="$(readlink -f "$IMAGE")"
307 echo "Image file not found." >&2
312 v
"Image not in /tmp, copying..."
313 cp -f "$IMAGE" /tmp
/sysupgrade.img
314 IMAGE
=/tmp
/sysupgrade.img
321 for check
in $sysupgrade_image_check; do
322 ( $check "$IMAGE" ) ||
{
323 if [ $FORCE -eq 1 ]; then
324 echo "Image check '$check' failed but --force given - will update anyway!" >&2
327 echo "Image check '$check' failed." >&2
333 if [ -n "$CONF_IMAGE" ]; then
334 case "$(get_magic_word $CONF_IMAGE cat)" in
338 echo "Invalid config file. Please use only .tar.gz files" >&2
342 get_image
"$CONF_IMAGE" "cat" > "$CONF_TAR"
344 elif ask_bool
$SAVE_CONFIG "Keep config files over reflash"; then
345 [ $TEST -eq 1 ] || do_save_conffiles
"$CONF_TAR"
348 [ $TEST -eq 1 ] ||
rm -f "$CONF_TAR"
352 if [ $TEST -eq 1 ]; then
356 if [ $SAVE_PARTITIONS -eq 0 ]; then
357 touch /tmp
/sysupgrade.always.overwrite.bootdisk.partmap
359 rm -f /tmp
/sysupgrade.always.overwrite.bootdisk.partmap
362 install_bin
/sbin
/upgraded
363 v
"Commencing upgrade. Closing all shell sessions."
365 COMMAND
='. /lib/functions.sh; include /lib/upgrade; do_upgrade_stage2'
367 if [ -n "$FAILSAFE" ]; then
368 printf '%s\x00%s\x00%s' "$RAM_ROOT" "$IMAGE" "$COMMAND" >/tmp
/sysupgrade
369 lock
-u /tmp
/.failsafe
371 ubus call system sysupgrade
"{
372 \"prefix\": $(json_string "$RAM_ROOT"),
373 \"path\": $(json_string "$IMAGE"),
374 \"command\": $(json_string "$COMMAND")