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
|
#!/usr/bin/perl
use MDK::Common;
my $SLASH_LOCATION = '/tmp/drakx-in-chroot';
my $verbose = 0;
my $prefix_ROOTED = '/mnt';
my $IMAGE_LOCATION_ROOTED = '/tmp/image';
my $MEDIA_LOCATION_ROOTED = '/tmp/media';
my $STAGE2_LOCATION_ROOTED = '/tmp/stage2';
my $LIVE_LOCATION_REL = 'install/stage2/live/';
my $COMPRESSED_LOCATION_REL = 'install/stage2/';
my $COMPRESSED_FILE_REL = $COMPRESSED_LOCATION_REL . 'mdkinst.sqfs';
my $AUTO_INSTALL_ROOTED = '/tmp/auto_inst.cfg.pl';
my $DEFCFG_ROOTED = '/tmp/defcfg.pl';
my $RPMSRATE_ROOTED = '/tmp/rpmsrate';
my $resolution = '800x600';
my $repository_uri;
@ARGV >= 2 or die "usage: drakx-in-chroot <root of distrib> <dir to install to> [options]\n
\nOptions specific to drakx-in-chroot:
--flang XX use XX locale
--resolution=XXXxYYYY (eg: --resolution=1024x768)\n
--repository=<path> path of packages repository
--text text mode installer
";
(my $repository, my $dir, @ARGV) = @ARGV;
foreach (@ARGV) {
$i++;
if (/--resolution=(.*)/) {
$resolution = $1;
} elsif (/--repository=(.*)/) {
$repository_uri = $1;
}
}
my ($repository_without_arch, $repository_arch) = basename($repository) eq arch() ? (dirname($repository), '/' . arch()) : ($repository, '');
my $STAGE2_LOCATION = $SLASH_LOCATION . $STAGE2_LOCATION_ROOTED;
my $sudo;
if ($>) {
$sudo = "sudo";
$ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}";
}
undef $ENV{TMPDIR}; # prevent packdrake faillure on creating temporary files
if (-d $SLASH_LOCATION) {
umount_all() == 0 or exit(1);
sys("$sudo rm -rf $SLASH_LOCATION/var/lib/rpm $SLASH_LOCATION/dev/mapper");
rm_rf($SLASH_LOCATION);
}
mkdir_p("$SLASH_LOCATION$_") foreach '/dev', '/dev/usb', '/etc', '/var', '/proc', '/sys', $STAGE2_LOCATION_ROOTED, $MEDIA_LOCATION_ROOTED, $prefix_ROOTED;
sys("$sudo rm -rf $dir") if $ENV{CLEAN};
-e $dir or sys("$sudo mkdir -p $dir");
copy_auto_install_files();
my $remote_repository = $repository =~ m!^(ftp|http)://! && $1;
if ($remote_repository) {
my $local_mdkinst = "$SLASH_LOCATION/tmp/mdkinst.sqfs";
sys("curl --silent -o $local_mdkinst $repository/$COMPRESSED_FILE_REL");
mount_mdkinst($local_mdkinst);
} elsif (-d "$repository/$LIVE_LOCATION_REL") {
sys("$sudo mount -o bind $repository/$LIVE_LOCATION_REL $STAGE2_LOCATION");
} elsif (-e "$repository/$COMPRESSED_FILE_REL") {
mount_mdkinst("$repository/$COMPRESSED_FILE_REL");
}
sys("$sudo mount -o bind $dir $SLASH_LOCATION$prefix_ROOTED");
$repository_uri ||= $repository_without_arch if !$remote_repository;
sys("$sudo mount -o bind $repository_uri $SLASH_LOCATION$MEDIA_LOCATION_ROOTED") if $repository_uri;
sys("$sudo mount -t proc none $SLASH_LOCATION/proc");
sys("$sudo mount -t sysfs none $SLASH_LOCATION/sys");
symlinkf('media' . $repository_arch, "$SLASH_LOCATION$IMAGE_LOCATION_ROOTED");
create_initial_symlinks();
create_initial_devices();
apply_stage2_updates();
output("$SLASH_LOCATION/etc/hosts", "127.0.0.1 localhost\n") if ! -e "$SLASH_LOCATION/etc/hosts";
#- in the chroot, we have no way to know which device corresponds to the "/" partition.
#- so helping it by giving the device which provide major/minor information
mkdir_p("$dir/dev");
eval { cp_af($_, "$dir$_") } foreach qw(/dev/root);
#- if the DISPLAY is remote, we may need to resolve the name:
eval { cp_af($_, "$SLASH_LOCATION$_") } foreach qw(/etc/resolv.conf);
{
chomp(my $kernel_version = `uname -r`);
my $dir = "/modules/$kernel_version";
mkdir_p("$SLASH_LOCATION$dir");
output_p("$SLASH_LOCATION$dir" . $_, "\n") foreach "/lib/$dir/modules.dep", "/lib/$dir/modules.alias";
}
my $Xnest_pid;
my $Xnest_bin = find { whereis_binary($_) } 'Xephyr', 'Xnest';
if (!-f ($SLASH_LOCATION . $AUTO_INSTALL_ROOTED) && $Xnest_bin && (join('', @ARGV) !~ /--text/)) {
my $DISPLAY = ':8';
$Xnest_pid = fork();
if (!$Xnest_pid) {
exec $Xnest_bin, $DISPLAY, '-ac', ($Xnest_bin eq 'Xephyr' ? '-screen' : '-geometry'), $resolution or die "Xnest failed\n";
}
$ENV{DISPLAY} = '127.0.0.1' . $DISPLAY;
}
if (my $pid = fork()) {
waitpid $pid, 0;
umount_all() == 0 or warn "umounting failed\n";
$Xnest_pid and kill 15, $Xnest_pid;
} else {
$ENV{TERM} = 'linux'; # we only have terminfo for terminal "linux"
$ENV{HOME} = '/';
# to kept sync with gi/mdk-stage1/init.c::env:
$ENV{LD_LIBRARY_PATH}='/lib:/usr/lib:/mnt/lib:/mnt/usr/lib:/usr/X11R6/lib:/mnt/usr/X11R6/lib:/lib64:/usr/lib64:/usr/X11R6/lib64:/mnt/lib64:/mnt/usr/lib64:/mnt/usr/X11R6/lib64';
if ($remote_repository) {
$ENV{URLPREFIX} = $repository;
}
my $cmd = join(' ', "/usr/bin/runinstall2 --local_install",
if_($remote_repository, "--method $remote_repository"),
@ARGV);
exec "$sudo chroot $SLASH_LOCATION $cmd" or die "exec $cmd in $SLASH_LOCATION failed\n";
}
sub system_verbose { warn join(' ', @_), "\n" if $verbose; system(@_) }
sub sys { &system_verbose; $? and die qq(running "@_" failed: $?\n) }
sub mount_mdkinst {
my ($mdkinst) = @_;
sys("$sudo mount -t squashfs -o loop,ro $mdkinst $STAGE2_LOCATION");
}
sub create_initial_symlinks() {
foreach (cat_or_die("$STAGE2_LOCATION/usr/share/symlinks")) {
my ($from, $to_) = split;
my $to = $SLASH_LOCATION . ($to_ || $from);
$from = "$STAGE2_LOCATION_ROOTED$from" if !$to_;
if (! -l $to) {
symlink $from, $to or die "symlinking $to failed\n";
}
}
}
sub create_initial_devices() {
sys("$sudo cp -a /dev/{mem,null,random,urandom} $SLASH_LOCATION/dev");
}
sub umount_all() {
my $err;
clean_stage2_updates();
my @procs = ('/proc/bus/usb', '/proc', '/sys');
foreach ((map { "$prefix_ROOTED$_" } @procs, ''), @procs, $STAGE2_LOCATION_ROOTED, $MEDIA_LOCATION_ROOTED, $IMAGE_LOCATION_ROOTED) {
my $dir = "$SLASH_LOCATION$_";
rmdir $dir;
if (-d $dir) {
if (m!/proc/bus/usb! || begins_with($_, $prefix_ROOTED)) {
system_verbose "$sudo umount $dir 2>/dev/null";
next;
}
system_verbose "$sudo umount $dir";
}
rmdir $dir;
if (-d $dir) {
warn "$dir is busy\n";
$err++;
}
}
if (my @remaining = cat_('/proc/mounts') =~ m!($SLASH_LOCATION/mnt/\S+)!g) {
warn "umount those mount points first: ", join(' ', @remaining), "\n";
$err++;
}
$err;
}
sub copy_auto_install_files() {
my ($opt);
each_index {
if ($opt eq 'auto_install' && -f $_) {
cp_f($_, $SLASH_LOCATION . $AUTO_INSTALL_ROOTED);
$_ = $AUTO_INSTALL_ROOTED;
} elsif ($opt eq 'defcfg' && -f $_) {
cp_f($_, $SLASH_LOCATION . $DEFCFG_ROOTED);
$_ = $DEFCFG_ROOTED;
} elsif ($opt eq 'rpmsrate' && -f $_) {
cp_f($_, $SLASH_LOCATION . $RPMSRATE_ROOTED);
}
undef $opt;
/^--?(.*)/ and $opt = $1;
} @ARGV;
}
my @stage2_updates;
sub apply_stage2_updates() {
each_index {
if ($_ eq '--stage2-update') {
my $file = $ARGV[$::i+1];
my $dest = $ARGV[$::i+2];
if (-f $file && $dest) {
undef $_;
undef $ARGV[$::i+1];
undef $ARGV[$::i+2];
push @stage2_updates, $dest;
sys("$sudo mount --bind $file $STAGE2_LOCATION/$dest");
}
}
} @ARGV;
}
sub clean_stage2_updates() {
sys("$sudo umount $STAGE2_LOCATION/$_") foreach @stage2_updates;
}
|
