fix sysupgrade 'do_upgrade: not found' error
[openwrt/svn-archive/archive.git] / package / base-files / files / lib / upgrade / common.sh
1 #!/bin/sh
2
3 RAM_ROOT=/tmp/root
4
5 ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
6 libs() { ldd $* | awk '{print $3}'; }
7
8 install_file() { # <file> [ <file> ... ]
9 for file in "$@"; do
10 dest="$RAM_ROOT/$file"
11 [ -f $file -a ! -f $dest ] && {
12 dir="$(dirname $dest)"
13 mkdir -p "$dir"
14 cp $file $dest
15 }
16 done
17 }
18
19 install_bin() { # <file> [ <symlink> ... ]
20 src=$1
21 files=$1
22 [ -x "$src" ] && files="$src $(libs $src)"
23 install_file $files
24 shift
25 for link in "$@"; do {
26 dest="$RAM_ROOT/$link"
27 dir="$(dirname $dest)"
28 mkdir -p "$dir"
29 [ -f "$dest" ] || ln -s $src $dest
30 }; done
31 }
32
33 pivot() { # <new_root> <old_root>
34 mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
35 mkdir -p $1$2 $1/proc $1/dev $1/tmp $1/jffs && \
36 mount -o move /proc $1/proc && \
37 pivot_root $1 $1$2 || {
38 umount $1 $1
39 return 1
40 }
41 mount -o move $2/dev /dev
42 mount -o move $2/tmp /tmp
43 mount -o move $2/jffs /jffs 2>&-
44 return 0
45 }
46
47 run_ramfs() { # <command> [...]
48 install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount /sbin/pivot_root /usr/bin/wget /sbin/reboot /bin/sync /bin/dd /bin/grep /bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" /bin/vi /bin/ls /bin/cat
49 install_bin /sbin/mtd
50 for file in $RAMFS_COPY_BIN; do
51 install_bin $file
52 done
53 install_file /etc/resolv.conf /etc/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
54
55 pivot $RAM_ROOT /mnt || {
56 echo "Failed to switch over to ramfs. Please reboot."
57 exit 1
58 }
59
60 mount -o remount,ro /mnt
61 umount -l /mnt
62
63 grep /jffs /proc/mounts > /dev/null && {
64 mount -o remount,ro /jffs
65 umount -l /jffs
66 }
67
68 # spawn a new shell from ramdisk to reduce the probability of cache issues
69 exec /bin/busybox ash -c "$*"
70 }
71
72 run_hooks() {
73 local arg="$1"; shift
74 for func in "$@"; do
75 eval "$func $arg"
76 done
77 }
78
79 ask_bool() {
80 local default="$1"; shift;
81 local answer="$default"
82
83 [ "$INTERACTIVE" -eq 1 ] && {
84 case "$default" in
85 0) echo -n "$* (y/N): ";;
86 *) echo -n "$* (Y/n): ";;
87 esac
88 read answer
89 case "$answer" in
90 y*) answer=1;;
91 n*) answer=0;;
92 *) answer="$default";;
93 esac
94 }
95 [ "$answer" -gt 0 ]
96 }
97
98 v() {
99 [ "$VERBOSE" -ge 1 ] && echo "$@"
100 }
101
102 rootfs_type() {
103 mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
104 }
105
106 get_image() {
107 local from="$1"
108
109 case "$from" in
110 http://*|ftp://*) wget -O- -q "$from";;
111 *) cat "$from"
112 esac
113 }
114
115 get_magic_word() {
116 get_image "$1" | dd bs=2 count=1 2>/dev/null | hexdump | awk '$2 { print $2 }'
117 }
118
119 refresh_mtd_partitions() {
120 mtd refresh rootfs
121 }
122
123 jffs2_copy_config() {
124 if grep rootfs_data /proc/mtd >/dev/null; then
125 # squashfs+jffs2
126 mtd -e rootfs_data jffs2write "$CONF_TAR" rootfs_data
127 else
128 # jffs2
129 mtd jffs2write "$CONF_TAR" rootfs
130 fi
131 }
132
133 do_upgrade() {
134 v "Performing system upgrade..."
135 platform_do_upgrade "$ARGV"
136
137 [ "$SAVE_CONFIG" -eq 1 ] && {
138 v "Refreshing partitions"
139 if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
140 platform_refresh_partitions
141 else
142 refresh_mtd_partitions
143 fi
144 if type 'platform_copy_config' >/dev/null 2>/dev/null; then
145 platform_copy_config
146 else
147 jffs2_copy_config
148 fi
149 }
150 ask_bool 1 "Reboot" && reboot
151 }