summaryrefslogtreecommitdiffstats
path: root/rescue/Flash/scripts/upgrade
blob: 3a15e72124909bdf6925f51adf72524e07d46245 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
#!/bin/bash

# import functions library
source rescue_common

tmpdir="/tmp/flash-rescue-root"
rootdir="$tmpdir/pen"

media_dir="/tmp/media"
upgrade_dir="$media_dir/upgrade"


config_files_network_scripts="etc/sysconfig/network-scripts/ifcfg-* \
                              etc/sysconfig/network-scripts/cellular.d \
                              etc/sysconfig/network-scripts/vpn.d \
                              etc/sysconfig/network-scripts/wireless.d"

config_files_users="etc/passwd etc/shadow etc/group etc/gshadow"
config_files_time="etc/localtime etc/ntp etc/ntp.conf"
config_files="etc/sysconfig/* $config_files_users $config_files_time \
              etc/wpa_supplicant.conf etc/shorewall etc/kde \
              etc/udev/rules.d/61-*_config.rules"

config_files_to_remove="etc/sysconfig/harddrake2"

function prepare() {

    echo "Mounting Mandriva Flash key..."
    echo

    modprobe unionfs > /dev/null 2>&1
    modprobe sqlzma > /dev/null 2>&1
    modprobe squashfs-lzma > /dev/null 2>&1
    modprobe squashfs > /dev/null 2>&1
    modprobe loop > /dev/null 2>&1

    mkdir -p $rootdir
    mkdir -p $tmpdir/squash
    mkdir -p $tmpdir/user
    mkdir -p $tmpdir/union

    if ! mount_usbroot $rootdir; then
        return 1
    fi

    set_sfs_loop $rootdir

    mount -t ext2 -o loop $sys_loop $tmpdir/user > /dev/null 2>&1
    if [ $? -ne 0 ]; then
        echo "Error mounting system.loop"
        return 1
    fi

    return 0
}

function get_existing_rpms() {

    echo "Getting list of installed packages..."
    echo

    mount -t squashfs -o loop $sfs_loop $tmpdir/squash > /dev/null 2>&1
    if [ $? -ne 0 ]; then
        echo "Error mounting distrib.sqfs"
        return 1
    fi

    mount -t unionfs -o dirs=$tmpdir/user=rw:$tmpdir/squash=ro \
        none $tmpdir/union
    if [ $? -ne 0 ]; then
        echo "Error creating union of distrib.sqfs and system.loop"
        return 1
    fi

    chroot $tmpdir/squash rpm -qa | sort > /tmp/previous_rpms.list
    if [ $? -ne 0 ]; then
        echo "Error getting list of vanilla rpms installed on previous key"
    fi

    chroot $tmpdir/union rpm -qa | sort > /tmp/existing_rpms.list
    if [ $? -ne 0 ]; then
        echo "Error getting list of rpms installed prior to upgrade"
    fi

    umount $tmpdir/union > /dev/null 2>&1
    lumount $tmpdir/squash > /dev/null 2>&1

    mkdir -p $tmpdir/user/root
    diff /tmp/previous_rpms.list /tmp/existing_rpms.list | sed -n 's/^> //p' > $tmpdir/user/root/new_existing_rpms.list

    return 0
}

function move_files() {
    for i in $*; do
	if [ -e $i ]; then
	    dir=`dirname $i`
	    [ "$dir" = "." ] || mkdir -p ..keep/$dir
	    mv $i ..keep/$dir || { echo "Error moving $i"; return 1; }
	fi
    done

    return 0
}

function remove_non_user_nor_config_files() {

    echo "Filtering system configuration files and user accounts..."
    echo

    cd $tmpdir/user

    rm -rf $config_files_to_remove

    if [ -e ..keep ]; then
	mv ..keep ..keep.bak
    fi
    if [ -e ..keep ]; then
	echo "remove_non_user_nor_config_files can't work with existing temp dir"
	return 1
    fi

    mkdir ..keep

    move_files $config_files_network_scripts || return 1
    rm -rf etc/sysconfig/network-scripts

    move_files home root $config_files || return 1
    rm -rf *
    rm -rf .[^.]*

    mv ..keep/* .
    rmdir ..keep

    cd - > /dev/null

    return 0
}

function copy_new_version() {

    echo "Copying new Mandriva Flash system..."

    rm -rf $rootdir$boot_rel
    rm -f $rootdir$loopbacks_rel/.*sqf
    rm -f $rootdir$loopbacks_rel/.*sqfs
    [ -d "$modules_dir" ] && rm -rf $modules_dir

    tar c -C $upgrade_dir . | pv -s `du -sb $upgrade_dir | cut -f 1` | tar x -C $rootdir
    echo

    chmod -R u+w $rootdir
    chmod -R u-w $rootdir$boot_rel $rootdir$loopbacks_rel

    new_label=$(source_version_variables "2.0"; echo $label)
    MTOOLS_SKIP_CHECK=1 mlabel -i $usbroot_device ::$new_label

    return 0
}

function merge_config_files() {

    echo "Merging user and group accounts in new system..."
    echo

    mount -t squashfs -o loop $sfs_loop $tmpdir/squash > /dev/null 2>&1
    if [ $? -ne 0 ]; then
        echo "Error mounting distrib.sqfs"
        return 1
    fi

    upgrade.merge-users $tmpdir/user/etc $tmpdir/squash/etc

    mount -t unionfs -o dirs=$tmpdir/user=rw:$tmpdir/squash=ro \
        none $tmpdir/union
    if [ $? -ne 0 ]; then
        echo "Error creating union of distrib.sqfs and system.loop"
        return 1
    fi

    #- reapply lang configuration, mostly to rewrite kdeglobals
    chroot $tmpdir/union perl -I/usr/lib/libDrakX -Mlang -e "lang::write(lang::read())" &>/dev/null

    #- remove KDE sessions file so that previous compiz usage does not break session
    rm -f $tmpdir/union/home/*/.kde/share/config/ksmserverrc &>/dev/null

    #- remove KDE autostart files that should have been migrated by startkde...
    rm -f $tmpdir/union/home/*/.kde/Autostart/{alignment-icons,openkmenu}.desktop &>/dev/null

    return 0
}

function doit() {

    if [ -d $tmpdir/user/var/lib/rpm/Packages ]; then
        get_existing_rpms || return 1
    fi

    remove_non_user_nor_config_files || return 1

    copy_new_version || return 1

    merge_config_files || return 1

    return 0
}

function cleanup() {
    cd /

    umount $tmpdir/union > /dev/null 2>&1
    lumount $tmpdir/user > /dev/null 2>&1
    lumount $tmpdir/squash > /dev/null 2>&1
    umount $rootdir > /dev/null 2>&1

    rmdir $tmpdir/union $tmpdir/user $tmpdir/squash 2> /dev/null
    rmdir $rootdir $tmpdir 2> /dev/null
}

clear
trap cleanup SIGINT

version=""
if ! insert_pendrive; then
    exit 1
fi

#- works only when upgrading versions with the same layout
sys_loop="$rootdir$loopbacks_rel/system.loop"
sfs_loop= #

modules_dir="$rootdir$loopbacks_rel/modules"

echo

if ! prepare; then
    cleanup
    exit 1
fi

if ! doit; then
    cleanup
    exit 1
fi

echo "Please wait, finishing copy to key..."
echo

cleanup

echo "Congratulations! Your Mandriva Flash system is now upgraded."
echo

exit 0