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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - debian/control-scripts/preinst
4 # Author : Manoj Srivastava ( srivasta@tiamat.datasync.com )
5 # Created On : Sun Jun 14 03:38:02 1998
6 # Created On Node : tiamat.datasync.com
7 # Last Modified By : Manoj Srivastava
8 # Last Modified On : Sun Sep 24 14:04:42 2006
9 # Last Machine Used: glaurung.internal.golden-gryphon.com
11 # Status : Unknown, Use with caution!
18 #use strict; #for debugging
20 use Debconf
::Client
::ConfModule
qw(:all);
22 my $capb=capb
("backup");
28 my $link_in_boot = ""; # Should be empty, mostly
29 my $no_symlink = ""; # Should be empty, mostly
30 my $reverse_symlink = ""; # Should be empty, mostly
31 my $do_symlink = "Yes"; # target machine defined
32 my $do_boot_enable = "Yes"; # target machine defined
33 my $do_bootfloppy = "Yes"; # target machine defined
34 my $do_bootloader = "Yes"; # target machine defined
35 my $move_image = ''; # target machine defined
36 my $kimage = "=K"; # Should be empty, mostly
37 my $loader = "=L"; # lilo, silo, quik, palo, vmelilo, nettrom
39 my $image_dir = "/boot"; # where the image is located
40 my $initrd = "YES"; # initrd kernel
41 my $use_hard_links = ''; # hardlinks do not wirk across fs boundaries
42 my $postinst_hook = ''; #Normally we do not
43 my $postrm_hook = ''; #Normally we do not
44 my $preinst_hook = ''; #Normally we do not
45 my $prerm_hook = ''; #Normally we do not
46 my $minimal_swap = ''; # Do not swap symlinks
47 my $ignore_depmod_err = ''; # normally we do not
48 my $relink_src_link = 'YES'; # There is no harm in checking the link
49 my $relink_build_link = 'YES'; # There is no harm in checking the link
50 my $force_build_link = ''; # There is no harm in checking the link
51 my $kernel_arch = "=B";
52 my $ramdisk = "/usr/sbin/update-initramfs"; # List of tools to create initial ram fs.
53 my $package_name = "linux-image-$version";
55 my $Loader = "NoLOADER"; #
56 $Loader = "LILO" if $loader =~ /^lilo/io;
57 $Loader = "SILO" if $loader =~ /^silo/io;
58 $Loader = "QUIK" if $loader =~ /^quik/io;
59 $Loader = "yaboot" if $loader =~ /^yaboot/io;
60 $Loader = "PALO" if $loader =~ /^palo/io;
61 $Loader = "NETTROM" if $loader =~ /^nettrom/io;
62 $Loader = "VMELILO" if $loader =~ /^vmelilo/io;
63 $Loader = "ZIPL" if $loader =~ /^zipl/io;
64 $Loader = "ELILO" if $loader =~ /^elilo/io;
69 my @silotemplate = ();
70 my @quiktemplate = ();
71 my @palotemplate = ();
72 my @vmelilotemplate = ();
76 my $rootpartition = '';
78 my $realimageloc = "/$image_dir/";
79 my $have_conffile = "";
80 my $CONF_LOC = '/etc/kernel-img.conf';
81 my $relative_links = '';
82 my $silent_loader = '';
83 my $warn_reboot = ''; # Warn that we are installing a version of
84 # the kernel we are running
86 my $modules_base = '/lib/modules';
88 die "Pre inst Internal error. Aborting." unless $version;
90 exit 0 if $ARGV[0] =~ /abort-upgrade/;
91 exit 1 unless $ARGV[0] =~ /(install|upgrade)/;
95 system ("grep -q ' pae ' /proc/cpuinfo");
97 print STDERR
"This kernel does not support a non-PAE CPU.\n";
102 # remove multiple leading slashes; make sure there is at least one.
103 $realimageloc =~ s
|^/*|/|o
;
104 $realimageloc =~ s
|/+|/|o
;
106 if (-r
"$CONF_LOC" && -f
"$CONF_LOC" ) {
107 if (open(CONF
, "$CONF_LOC")) {
113 $do_symlink = "" if /^\s*do_symlinks\s*=\s*(no|false|0)\s*$/ig;
114 $no_symlink = "" if /^\s*no_symlinks\s*=\s*(no|false|0)\s*$/ig;
115 $reverse_symlink = "" if /^\s*reverse_symlinks\s*=\s*(no|false|0)\s*$/ig;
116 $link_in_boot = "" if /^\s*image_in_boot\s*=\s*(no|false|0)\s*$/ig;
117 $link_in_boot = "" if /^\s*link_in_boot\s*=\s*(no|false|0)\s*$/ig;
118 $move_image = "" if /^\s*move_image\s*=\s*(no|false|0)\s*$/ig;
119 $do_boot_enable = '' if /^\s*do_boot_enable\s*=\s*(no|false|0)\s*$/ig;
120 $do_bootfloppy = '' if /^\s*do_bootfloppy\s*=\s*(no|false|0)\s*$/ig;
121 $do_bootloader = '' if /^\s*do_bootloader\s*=\s*(no|false|0)\s*$/ig;
122 $relative_links = '' if /^\s*relative_links \s*=\s*(no|false|0)\s*$/ig;
123 $use_hard_links = '' if /^\s*use_hard_links\s*=\s*(no|false|0)\s*$/ig;
124 $silent_loader = '' if /^\s*silent_loader\s*=\s*(no|false|0)\s*$/ig;
125 $warn_reboot = '' if /^\s*warn_reboot\s*=\s*(no|false|0)\s*$/ig;
126 $minimal_swap = '' if /^\s*minimal_swap\s*=\s*(no|false|0)\s*$/ig;
127 $ignore_depmod_err = '' if /^\s*ignore_depmod_err\s*=\s*(no|false|0)\s*$/ig;
128 $relink_src_link = '' if /^\s*relink_src_link\s*=\s*(no|false|0)\s*$/ig;
129 $relink_build_link = '' if /^\s*relink_build_link\s*=\s*(no|false|0)\s*$/ig;
130 $force_build_link = '' if /^\s*force_build_link\s*=\s*(no|false|0)\s*$/ig;
132 $do_symlink = "Yes" if /^\s*do_symlinks\s*=\s*(yes|true|1)\s*$/ig;
133 $no_symlink = "Yes" if /^\s*no_symlinks\s*=\s*(yes|true|1)\s*$/ig;
134 $reverse_symlink = "Yes" if /^\s*reverse_symlinks\s*=\s*(yes|true|1)\s*$/ig;
135 $link_in_boot = "Yes" if /^\s*image_in_boot\s*=\s*(yes|true|1)\s*$/ig;
136 $link_in_boot = "Yes" if /^\s*link_in_boot\s*=\s*(yes|true|1)\s*$/ig;
137 $move_image = "Yes" if /^\s*move_image\s*=\s*(yes|true|1)\s*$/ig;
138 $do_boot_enable = "Yes" if /^\s*do_boot_enable\s*=\s*(yes|true|1)\s*$/ig;
139 $do_bootfloppy = "Yes" if /^\s*do_bootfloppy\s*=\s*(yes|true|1)\s*$/ig;
140 $do_bootloader = "Yes" if /^\s*do_bootloader\s*=\s*(yes|true|1)\s*$/ig;
141 $relative_links = "Yes" if /^\s*relative_links\s*=\s*(yes|true|1)\s*$/ig;
142 $use_hard_links = "Yes" if /^\s*use_hard_links\s*=\s*(yes|true|1)\s*$/ig;
143 $silent_loader = 'Yes' if /^\s*silent_loader\s*=\s*(yes|true|1)\s*$/ig;
144 $warn_reboot = 'Yes' if /^\s*warn_reboot\s*=\s*(yes|true|1)\s*$/ig;
145 $minimal_swap = 'Yes' if /^\s*minimal_swap\s*=\s*(yes|true|1)\s*$/ig;
146 $ignore_depmod_err = 'Yes' if /^\s*ignore_depmod_err\s*=\s*(yes|true|1)\s*$/ig;
147 $relink_src_link = 'Yes' if /^\s*relink_src_link\s*=\s*(yes|true|1)\s*$/ig;
148 $relink_build_link = 'Yes' if /^\s*relink_build_link\s*=\s*(yes|true|1)\s*$/ig;
149 $force_build_link = 'Yes' if /^\s*force_build_link\s*=\s*(yes|true|1)\s*$/ig;
151 $image_dest = "$1" if /^\s*image_dest\s*=\s*(\S+)/ig;
152 $postinst_hook = "$1" if /^\s*postinst_hook\s*=\s*(\S+)/ig;
153 $postrm_hook = "$1" if /^\s*postrm_hook\s*=\s*(\S+)/ig;
154 $preinst_hook = "$1" if /^\s*preinst_hook\s*=\s*(\S+)/ig;
155 $prerm_hook = "$1" if /^\s*prerm_hook\s*=\s*(\S+)/ig;
156 $ramdisk = "$1" if /^\s*ramdisk\s*=\s*(.+)$/ig;
159 $have_conffile = "Yes";
160 $have_conffile = "Yes"; # stop perl complaining
164 $initrd = '' if (! -x
"$ramdisk");
166 $ENV{KERNEL_ARCH
}=$kernel_arch if $kernel_arch;
168 # About to upgrade this package from version $2 TO THIS VERSION.
169 # "prerm upgrade" has already been called for the old version of
172 sub find_initrd_tool
{
173 my $hostversion = shift;
179 "--supported-host-version=$hostversion " .
180 "--supported-target-version=$version " .
185 split (/[:,\s]+/, $ramdisk);
190 my $lib_modules="$modules_base/$version";
193 if (-d
"$lib_modules") {
194 opendir(DIR
, $lib_modules) || die "can’t opendir $lib_modules: $!";
195 my @children = readdir(DIR
);
196 if ($#children > 1) {
197 my @dirs = grep { -d
"$lib_modules/$_" } @children;
198 if ($#dirs > 1) { # we have subdirs
200 for my $dir (@dirs) {
201 if ($dir =~/kernel$/) {
202 $dir_message="An older install was detected.\n";
205 $dir_message="Module sub-directories were detected.\n"
209 $message += $dir_message if $dir_message;
212 my @links = grep { -l
"$lib_modules/$_" } @children;
214 my $links_message = '';
215 for my $link (@links) {
216 next if ($link =~ /^build$/);
217 next if ($link =~ /^source$/);
218 $links_message = "Symbolic links were detected in $modules_base/$version.\n";
220 $message += $links_message if $links_message;
222 my @files = grep { -f
"$lib_modules/$_" } @children;
223 $message += "Additional files also exist in $modules_base/$version.\n"
227 else { $message .= "$lib_modules does not exist. ";}
231 if (-d
"$modules_base/$version") {
232 my $errors=check
($version);
233 warn "Info:\n$errors\n" if $errors;
236 # set the env var stem
237 $ENV{'STEM'} = "linux";
242 print STDERR
"Running $type hook script $script.\n";
243 system ("$script $version $realimageloc$kimage-$version") &&
244 print STDERR
"User $type hook script [$script] ";
247 print STDERR
"failed to execute: $!\n";
250 printf STDERR
"died with signal %d, %s coredump\n",
251 ($? & 127), ($? & 128) ?
'with' : 'without';
254 printf STDERR
"exited with value %d\n", $? >> 8;
262 if ($script =~ m
,^/,) {
263 # Full path provided for the hook script
265 &exec_script
($type,$script);
268 die "The provided $type hook script [$script] could not be run.\n";
272 # Look for it in a safe path
273 for my $path ('/bin', '/sbin', '/usr/bin', '/usr/sbin') {
274 if (-x
"$path/$script") {
275 &exec_script
($type, "$path/$script");
280 print STDERR
"Could not find $type hook script [$script].\n";
281 die "Looked in: '/bin', '/sbin', '/usr/bin', '/usr/sbin'\n";
291 $ENV{'DEB_MAINT_PARAMS'}="$options";
293 ## Run user hook script here, if any
294 if (-x
"$preinst_hook") {
295 &run_hook
("preinst", $preinst_hook);
297 if (-d
"/etc/kernel/preinst.d") {
298 print STDERR
"Examining /etc/kernel/preinst.d/\n";
299 system ("run-parts --verbose --exit-on-error --arg=$version" .
300 " --arg=$realimageloc$kimage-$version" .
301 " /etc/kernel/preinst.d") &&
302 die "Failed to process /etc/kernel/preinst.d";
304 if (-d
"/etc/kernel/preinst.d/$version") {
305 print STDERR
"Examining /etc/kernel/preinst.d/$version.\n";
306 system ("run-parts --verbose --exit-on-error --arg=$version" .
307 " --arg=$realimageloc$kimage-$version" .
308 " /etc/kernel/preinst.d/$version") &&
309 die "Failed to process /etc/kernel/preinst.d/$version";
311 print STDERR
"Done.\n";