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
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
|
package MDV::Draklive::Initrd;
use MDK::Common;
use common;
use list_modules;
use MDV::Draklive::Utils;
use MDV::Draklive::StorageFS;
use MDV::Draklive::Loopback;
use MDV::Draklive::Overlay;
sub nls_modules {
my ($live) = @_;
my $fs = $live->{media}->get_media_setting('fs');
if_($fs eq 'vfat', 'nls_cp437'), #- default FAT codepage
if_($fs !~ /^ext/, map { "nls_$_" } (map { "iso8859_$_" } 1..7, 9, 13..15), 'utf8');
}
sub create_media_initrd {
my ($live) = @_;
create_initrd_for_media($live, $live->{media});
cp_f($live->get_builddir . $live->{prefix}{build}{boot} . $live->{media}->get_initrd_path,
$live->{copy_initrd}) if $live->{copy_initrd};
}
sub inst_initrd_file {
my ($root, $initrd_tree, $file) = @_;
if ($file =~ m|/s?bin/|) {
inst_initrd_bin($root, $initrd_tree, $file);
} else {
mkdir_p($initrd_tree . dirname($file));
inst_initrd_dso_deps($root, $initrd_tree, $file) if $file =~ m|/lib[^/]*/|;
cp_f($root . $file, $initrd_tree . $file) or die "unable to copy $file from system chroot\n";
}
}
sub inst_initrd_dso_deps {
my ($root, $initrd_tree, $dso) = @_;
foreach my $file (`chroot $root ldd $dso | awk '/\\// {if(\$2 == "=>") {print \$3} else {print \$1}}'`) {
chomp $file;
$file =~ s!^(/lib[^/]*)/(?:i686|tls)!$1!;
my ($lib_prefix, $filename) = $file =~ m|(/lib[^/]*).*/([^/]+)$| or next;
my $dest = $initrd_tree . $lib_prefix . '/' . $filename;
mkdir_p($initrd_tree . $lib_prefix);
-f $dest || cp_f($root . $file, $dest) or die "unable to copy $filename from system chroot\n";
}
}
sub inst_initrd_bin {
my ($root, $initrd_tree, $bin) = @_;
cp_f($root . $bin, $initrd_tree . '/bin/');
inst_initrd_dso_deps($root, $initrd_tree, $bin);
}
sub create_initrd_for_media {
my ($live, $media) = @_;
my $initrd = $live->get_builddir . $live->{prefix}{build}{boot} . $media->get_initrd_path;
create_media_specific_initrd($live, $media, $live->get_system_root, $initrd, $live->find_kernel);
}
sub create_media_specific_initrd {
my ($live, $media, $root, $initrd, $kernel) = @_;
my $lib_prefix = find { glob($root . $_ . '/libc.so.*') } qw(/lib64 /lib);
$lib_prefix or die 'unable to find system libraries in /lib or /lib64';
my $initrd_tree = $live->get_builddir . $live->{prefix}{build}{initrd} . '/' . $media->{storage};
rm_rf($initrd_tree) if -e $initrd_tree;
mkdir_p($initrd_tree . $_) foreach
qw(/bin /dev /proc /sys /tmp),
map { $live->{prefix}{live}{mnt} . $_ }
$live->{prefix}{media}{mnt},
$live->{mount}{root},
map { $_->{mountpoint} } @{$live->{mount}{dirs} || []};
#- use nash with label support
inst_initrd_bin($root, $initrd_tree, '/sbin/nash');
inst_initrd_bin($root, $initrd_tree, '/usr' . $lib_prefix . '/drakx-installer-binaries/probe-modules');
inst_initrd_bin($root, $initrd_tree, '/sbin/blockdev')
if $media->get_media_setting('rereadpt');
inst_initrd_bin($root, $initrd_tree, '/usr/bin/strace')
if $live->{debug};
foreach (chomp_(run_program::rooted_get_stdout($root, "/usr/sbin/splashy_find_files"))) {
inst_initrd_file($root, $initrd_tree, $_);
}
#- busybox is required to:
#- detect usb-storage process (we need sh/while/ps/grep)
#- mount loopbacks read-only with losetup (useful over NFS)
my $busybox = '/usr/bin/busybox';
inst_initrd_bin($root, $initrd_tree, $busybox);
my $busybox_rooted = $root . $busybox;
my @l = map { /functions:/ .. /^$/ ? do { s/\s//g; split /,/ } : () } `$busybox_rooted`;
shift @l;
symlink('busybox', $initrd_tree . "/bin/$_") foreach @l;
my $fs = $media->get_media_setting('fs');
my @used_loop_types = uniq(map { $_->{type} } @{$live->{mount}{dirs}});
inst_initrd_bin($root, $initrd_tree, $_) foreach
MDV::Draklive::StorageFS::get_files($fs),
(map { @{$loop_types{$_} && $loop_types{$_}{files} || []} } @used_loop_types);
output_p($initrd_tree . '/etc/fstab', '');
output_p($initrd_tree . '/etc/mtab', '');
my $loop_nb = 254;
my $rrpt_dev = $media->get_media_setting('rereadpt');
require devices;
devices::make($initrd_tree . "/dev/$_") foreach
if_($rrpt_dev, $rrpt_dev),
qw(console initrd null ram systty),
(map { "tty$_" } 0..8),
(map { "loop$_" } 0 .. $loop_nb);
syscall_('mknod', $initrd_tree . "/dev/fb0", c::S_IFCHR(), makedev(29, 0)) or die "mknod failed (dev $_): $!";
#- pre-create devfsd compatibility loop devices (since busybox is still built with devfsd support)
mkdir_p($initrd_tree . "/dev/loop");
cp_af($initrd_tree . "/dev/loop$_", $initrd_tree . "/dev/loop/$_") foreach 0 .. $loop_nb;
print "using kernel $kernel\n";
my $kernel_root = "/lib/modules/" . $kernel;
list_modules::load_dependencies($root . $kernel_root . "/modules.dep");
my ($storage_modules, $skipped) = partition { list_modules::modname2filename($_) }
uniq(map { modules::cond_mapping_24_26($_) } category2modules($media->get_media_setting('modules')));
my ($extra_modules, $extra_missing) = partition { list_modules::modname2filename($_) }
category2modules($media->get_media_setting('media_modules')),
nls_modules($live),
$media->get_media_fs_module,
@{$media->get_media_setting('extra_modules') || []},
(map { @{$loop_types{$_}{modules} || []} } uniq(map { $_->{type} } @{$live->{mount}{dirs} || []})),
($live->{mount}{overlay} ? @{$MDV::Draklive::Overlay::overlay{$live->{mount}{overlay}}{modules} || []} : ());
my @additional_modules = map { if_(m!([^/]+)\.ko(?:\.gz)?!, list_modules::filename2modname($1)) } @{$live->{system}{additional_modules}};
@$extra_modules = difference2($extra_modules, \@additional_modules);
if (@{$live->{system}{exclude_modules} || []}) {
print STDERR "excluding modules: " . join(' ', @{$live->{system}{exclude_modules}}) . "\n";
@$_ = difference2($_, $live->{system}{exclude_modules}) foreach $storage_modules, $extra_modules;
}
my @missing = sort(difference2($extra_missing, \@additional_modules));
@missing and die "missing mandatory modules:\n" . join("\n", @missing, '');
mkdir_p($initrd_tree . $kernel_root . "/kernel");
my @modules = (@$storage_modules, @$extra_modules);
my @modules_closure = uniq(map { list_modules::dependencies_closure($_) } @modules);
foreach my $m (@modules_closure) {
my $full = list_modules::modname2path($m);
mkdir_p(dirname($initrd_tree . $full));
cp_f($root . $full, $initrd_tree . $full);
}
foreach my $f (@{$live->{system}{additional_modules}}) {
my $destdir = $initrd_tree . $kernel_root . "/kernel";
if ($f =~ /.gz$/) {
cp_f($live->{settings}{config_root} . '/' . $f, $destdir);
} else {
my $m = basename($f);
run_program::run('gzip', '>', "$destdir/$m.gz", '-c', $live->{settings}{config_root} . '/' . $f);
}
}
run_('depmod', '-b', $initrd_tree, $kernel);
mkdir_p($initrd_tree . "/etc/blkid"); #- for nash and showlabels cache
mkdir_p($initrd_tree . "/lib/module-init-tools");
cp_f($root . "/lib/module-init-tools/ldetect-lst-modules.alias", $initrd_tree . "/lib/module-init-tools");
mkdir_p($initrd_tree . "/usr/share/ldetect-lst");
cp_f($root . "/usr/share/pci.ids", $initrd_tree . "/usr/share");
cp_f($root . "/usr/share/ldetect-lst/" . $_, $initrd_tree . "/usr/share/ldetect-lst")
foreach qw(fallback-modules.alias pcitable.gz usbtable.gz);
@$skipped and print STDERR "skipped modules: " . join(' ', sort(@$skipped)) . "\n";
my @extra_modules_closure = map { list_modules::modname2filename($_) }
uniq(map { list_modules::dependencies_closure($_) } @$extra_modules);
create_initrd_scriptlet($live, $media, @extra_modules_closure, @additional_modules);
compress_initrd_tree($live, $initrd_tree, $initrd);
add_splash($live, $initrd);
}
sub create_initrd_scriptlet {
my ($live, $media, @modules) = @_;
my $target = $live->{prefix}{live}{mnt} . ($live->{mount}{root} || $live->{prefix}{media}{mnt});
my $pre = $media->get_media_setting('pre');
my $fs = $media->get_media_setting('fs');
my $rrpt_dev = $media->get_media_setting('rereadpt');
my $debug_shell = "sh -c 'if grep -q initrd_debug /proc/cmdline; then exec sh </dev/console >/dev/console 2>/dev/console; fi'";
my ($mount_first, $mount_last) = partition { !$loop_types{$_->{type}}{delay_mount} }
grep { exists $loop_types{$_->{type}}{mount} } @{$live->{mount}{dirs} || []};
output_with_perm($live->get_builddir . $live->{prefix}{build}{initrd} . '/' . $media->{storage} . '/linuxrc', 0755,
join("\n",
"#!/bin/nash",
#- required for labels and ps
"nash-mount -t proc /proc /proc",
#- required for cdrom labels
"nash-mount -t sysfs /sys /sys",
"splashy_chvt 8",
"splashy boot",
(map { join(" ", "probe-modules", list_modules::filename2modname($_), grep { $_ } $live->{system}{module_options}{$_}) } @modules),
"probe-modules --$media->{storage}",
if_($rrpt_dev,
"echo *** Waiting for new partitions on device ${rrpt_dev} ***",
"sh -c 'while ! ls /sys/block/${rrpt_dev}/${rrpt_dev}* >/dev/null 2>&1; do sleep 3; blockdev --rereadpt /dev/${rrpt_dev} >/dev/null 2>&1; done'"),
$debug_shell,
if_($pre, deref_array($pre)),
"mkdevices /dev",
"showlabels --removable",
MDV::Draklive::StorageFS::get_mount($fs)->($live, $media),
(map { $loop_types{$_->{type}}{mount}->($live, $_) } @$mount_first, @$mount_last),
($live->{mount}{overlay} ? $MDV::Draklive::Overlay::overlay{$live->{mount}{overlay}}{mount}->($live) : ()),
if_($live->{system}{initrd_pre_pivot}, deref_array($live->{system}{initrd_pre_pivot})),
qq(splashy_update "chroot $target"),
"echo 0x0100 > /proc/sys/kernel/real-root-dev",
"umount /sys",
"sh -c 'umount /proc/bus/usb 2>/dev/null'",
"umount /proc",
"pivot_root $target $target/initrd",
q(sh -c 'rmdir /initrd/live/union'),
q(sh -c 'if [ -d /initrd/live/modules ]; then cd /initrd/live/modules; for i in `ls -1`; do mkdir -p /live/modules/$i; mount -n --move $i /live/modules/$i; rmdir $i; done; rmdir /initrd/live/modules; fi'),
q(sh -c 'cd /initrd/live; for i in `ls -1`; do [ -d $i ] || continue; mkdir -p /live/$i; mount -n --move $i /live/$i; rmdir $i; done'),
q(sh -c 'mv /initrd/live/* /live/'),
q(rmdir /initrd/live),
"nash-mount -o mode=0755 -t tmpfs /dev /dev",
q(sh -c 'mv /initrd/dev/* /dev/'),
if_($live->{system}{initrd_post}, deref_array($live->{system}{initrd_post})),
""));
}
sub compress_initrd_tree {
my ($live, $initrd_tree, $initrd) = @_;
my $size = chomp_(run_program::get_stdout("du -ks $initrd_tree | awk '{print \$1}'"));
my $inodes = chomp_(run_program::get_stdout("find $initrd_tree | wc -l")) + 100;
my $initrd_size = $size + 350 + int($inodes / 10); #- 10 inodes needs 1K
$initrd_size += 600; # splashy
$initrd =~ s/.gz$//;
mkdir_p(dirname($initrd));
run_('dd', 'if=/dev/zero', "of=$initrd", 'bs=1k', "count=$initrd_size");
run_('mke2fs', '-q', '-m', 0, '-F', '-N', $inodes, '-s', 1, $initrd);
mkdir_p($live->{mnt});
run_('mount', '-o', 'loop', '-t', 'ext2', $initrd, $live->{mnt});
cp_af(glob("$initrd_tree/*"), $live->{mnt});
rm_rf($live->{mnt} . "/lost+found");
my $left = chomp_(run_program::get_stdout("df -Pk $live->{mnt} | tail -n 1 | awk '{ print \$4 }'"));
run_('umount', $live->{mnt});
$left < 200 and die "not enough room to create initrd (only ${left}K left)\n";
run_('gzip', '-f', '-9', $initrd);
}
sub add_splash {
my ($live, $initrd) = @_;
if ($live->{system}{vga_mode} && $live->{system}{splash} ne 'no') {
require bootloader;
my $tmp_initrd = '/tmp/initrd.gz';
cp_f($initrd, $live->get_system_root . $tmp_initrd);
{
local $::prefix = $live->get_system_root;
bootloader::add_boot_splash($tmp_initrd, $live->{system}{vga_mode});
}
cp_f($live->get_system_root . $tmp_initrd, $initrd);
unlink($live->get_system_root . $tmp_initrd);
}
}
sub create_classical_initrd {
my ($live) = @_;
my $kernel = $live->find_kernel;
#- FIXME: use bootloader-config and allow it not to require a bootloader?
print "using kernel $kernel\n";
my $initrd_long = '/boot/initrd-'. $kernel . '.img';
my $initrd_short = '/boot/initrd.img';
my $vmlinuz_long = '/boot/vmlinuz-' . $kernel;
my $vmlinuz_short = '/boot/vmlinuz';
my $root = $live->get_system_root;
run_({ root => $root }, 'mkinitrd', '-v', '-f', $initrd_long, $kernel);
symlinkf(basename($initrd_long), $root . $initrd_short);
symlinkf(basename($vmlinuz_long), $root . $vmlinuz_short);
if ($live->{system}{vga_mode} && $live->{system}{splash} ne 'no') {
require bootloader;
local $::prefix = $live->get_system_root;
bootloader::add_boot_splash($initrd_long, $live->{system}{vga_mode});
}
}
1;
|
