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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - debian/control-scripts/prerm
4 # Author : root ( root@melkor.pilgrim.umass.edu )
5 # Created On : Fri May 17 03:28:59 1996
6 # Created On Node : melkor.pilgrim.umass.edu
7 # Last Modified By : Manoj Srivastava
8 # Last Modified On : Sat Aug 5 13:14:17 2006
9 # Last Machine Used: glaurung.internal.golden-gryphon.com
11 # Status : Unknown, Use with caution!
16 # $Id: image.prerm,v 1.22 2003/10/07 16:24:20 srivasta Exp $
24 my $link_in_boot = ""; # Should be empty, mostly
25 my $no_symlink = ""; # Should be empty, mostly
26 my $reverse_symlink = ""; # Should be empty, mostly
27 my $do_symlinks = "Yes"; # target machine defined
28 my $do_boot_enable = "Yes"; # target machine defined
29 my $do_bootfloppy = "Yes"; # target machine defined
30 my $do_bootloader = "Yes"; # target machine defined
31 my $move_image = ''; # target machine defined
32 my $kimage = "=K"; # Should be empty, mostly
33 my $loader = "=L"; # lilo, silo, quik, palo, vmelilo, or nettrom
34 my $image_dir = "/boot"; # where the image is located
35 my $clobber_modules = ''; # target machine defined
36 my $initrd = "YES"; # initrd kernel
37 my $use_hard_links = ''; # hardlinks do not wirk across fs boundaries
38 my $postinst_hook = ''; #Normally we do not
39 my $postrm_hook = ''; #Normally we do not
40 my $preinst_hook = ''; #Normally we do not
41 my $prerm_hook = ''; #Normally we do not
42 my $minimal_swap = ''; # Do not swap symlinks
43 my $ignore_depmod_err = ''; # normally we do not
44 my $relink_build_link = 'YES'; # There is no harm in checking the link
45 my $force_build_link = ''; # There is no harm in checking the link
46 my $kernel_arch = "=B";
47 my $ramdisk = "/usr/sbin/update-initramfs";
48 my $package_name = "linux-image-$version";
50 my $Loader = "NoLOADER"; #
51 $Loader = "LILO" if $loader =~ /^lilo/io;
52 $Loader = "SILO" if $loader =~ /^silo/io;
53 $Loader = "QUIK" if $loader =~ /^quik/io;
54 $Loader = "yaboot" if $loader =~ /^yaboot/io;
55 $Loader = "PALO" if $loader =~ /^palo/io;
56 $Loader = "NETTROM" if $loader =~ /^nettrom/io;
57 $Loader = "VMELILO" if $loader =~ /^vmelilo/io;
58 $Loader = "ZIPL" if $loader =~ /^zipl/io;
59 $Loader = "ELILO" if $loader =~ /^elilo/io;
62 # This should not point to /tmp, because of security risks.
63 my $temp_file_name = "/var/log/$loader" . "_log.$$";
67 my $realimageloc = "/$image_dir/";
68 my $have_conffile = "";
69 my $CONF_LOC = '/etc/kernel-img.conf';
70 my $relative_links = '';
71 my $silent_loader = '';
72 my $warn_reboot = 'Yes'; # Warn that we are installing a version of
73 # the kernel we are running
75 # remove multiple leading slashes; make sure there is at least one.
76 $realimageloc =~ s
|^/*|/|o
;
77 $realimageloc =~ s
|/+|/|o
;
87 my $WouldInvalidate = 0;
89 if ($ARGV[0] && ($ARGV[0] =~ /remove/ || $ARGV[0] =~ /upgrade/)) {
90 if (-l
"/usr/doc/linux-image-$version") {
91 unlink "/usr/doc/linux-image-$version";
95 # Ignore all invocations uxcept when called on to remove
96 exit 0 unless ($ARGV[0] && $ARGV[0] =~ /remove/) ;
98 # Paranoid check to make sure that the correct value is put in there
99 if (! $kimage) { $kimage = "vmlinuz";} # Hmm. empty
100 elsif ($kimage =~ m/^b?uImage$/o) { $kimage = "vmlinuz";} # these produce vmlinuz
101 elsif ($kimage =~ m/^b?zImage$/o) { $kimage = "vmlinuz";} # these produce vmlinuz
102 elsif ($kimage =~ m/^[iI]mage$/o) { my $nop = $kimage; }
103 elsif ($kimage =~ m/^vmlinux$/o) { my $nop = $kimage; }
104 else { $kimage = "vmlinuz";} # Default
106 if (-r
"$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 $clobber_modules = '' if /^\s*clobber_modules\s*=\s*(no|false|0)\s*$/ig;
120 $do_boot_enable = '' if /^\s*do_boot_enable\s*=\s*(no|false|0)\s*$/ig;
121 $do_bootfloppy = '' if /^\s*do_bootfloppy\s*=\s*(no|false|0)\s*$/ig;
122 $relative_links = '' if /^\s*relative_links \s*=\s*(no|false|0)\s*$/ig;
123 $do_bootloader = '' if /^\s*do_bootloader\s*=\s*(no|false|0)\s*$/ig;
124 $do_initrd = '' if /^\s*do_initrd\s*=\s*(no|false|0)\s*$/ig;
125 $use_hard_links = '' if /^\s*use_hard_links\s*=\s*(no|false|0)\s*$/ig;
126 $silent_loader = '' if /^\s*silent_loader\s*=\s*(no|false|0)\s*$/ig;
127 $warn_reboot = '' if /^\s*warn_reboot\s*=\s*(no|false|0)\s*$/ig;
128 $minimal_swap = '' if /^\s*minimal_swap\s*=\s*(no|false|0)\s*$/ig;
129 $ignore_depmod_err = '' if /^\s*ignore_depmod_err\s*=\s*(no|false|0)\s*$/ig;
130 $relink_build_link = '' if /^\s*relink_build_link\s*=\s*(no|false|0)\s*$/ig;
131 $force_build_link = '' if /^\s*force_build_link\s*=\s*(no|false|0)\s*$/ig;
134 $do_symlink = "Yes" if /^\s*do_symlinks\s*=\s*(yes|true|1)\s*$/ig;
135 $no_symlink = "Yes" if /^\s*no_symlinks\s*=\s*(yes|true|1)\s*$/ig;
136 $reverse_symlink = "Yes" if /^\s*reverse_symlinks\s*=\s*(yes|true|1)\s*$/ig;
137 $link_in_boot = "Yes" if /^\s*image_in_boot\s*=\s*(yes|true|1)\s*$/ig;
138 $link_in_boot = "Yes" if /^\s*link_in_boot\s*=\s*(yes|true|1)\s*$/ig;
139 $move_image = "Yes" if /^\s*move_image\s*=\s*(yes|true|1)\s*$/ig;
140 $clobber_modules = "Yes" if /^\s*clobber_modules\s*=\s*(yes|true|1)\s*$/ig;
141 $do_boot_enable = "Yes" if /^\s*do_boot_enable\s*=\s*(yes|true|1)\s*$/ig;
142 $do_bootfloppy = "Yes" if /^\s*do_bootfloppy\s*=\s*(yes|true|1)\s*$/ig;
143 $do_bootloader = "Yes" if /^\s*do_bootloader\s*=\s*(yes|true|1)\s*$/ig;
144 $relative_links = "Yes" if /^\s*relative_links\s*=\s*(yes|true|1)\s*$/ig;
145 $do_initrd = "Yes" if /^\s*do_initrd\s*=\s*(yes|true|1)\s*$/ig;
146 $use_hard_links = "Yes" if /^\s*use_hard_links\s*=\s*(yes|true|1)\s*$/ig;
147 $silent_loader = 'Yes' if /^\s*silent_loader\s*=\s*(yes|true|1)\s*$/ig;
148 $warn_reboot = 'Yes' if /^\s*warn_reboot\s*=\s*(yes|true|1)\s*$/ig;
149 $minimal_swap = 'Yes' if /^\s*minimal_swap\s*=\s*(yes|true|1)\s*$/ig;
150 $ignore_depmod_err = 'Yes' if /^\s*ignore_depmod_err\s*=\s*(yes|true|1)\s*$/ig;
151 $relink_build_link = 'Yes' if /^\s*relink_build_link\s*=\s*(yes|true|1)\s*$/ig;
152 $force_build_link = 'Yes' if /^\s*force_build_link\s*=\s*(yes|true|1)\s*$/ig;
154 $image_dest = "$1" if /^\s*image_dest\s*=\s*(\S+)/ig;
155 $postinst_hook = "$1" if /^\s*postinst_hook\s*=\s*(\S+)/ig;
156 $postrm_hook = "$1" if /^\s*postrm_hook\s*=\s*(\S+)/ig;
157 $preinst_hook = "$1" if /^\s*preinst_hook\s*=\s*(\S+)/ig;
158 $prerm_hook = "$1" if /^\s*prerm_hook\s*=\s*(\S+)/ig;
159 $ramdisk = "$1" if /^\s*ramdisk\s*=\s*(.+)$/ig;
162 $have_conffile = "Yes";
166 $initrd = '' if (! -x
"$ramdisk");
168 $ENV{KERNEL_ARCH
}=$kernel_arch if $kernel_arch;
170 #check to see if we are trying to remove a running kernel
171 # if so we abort right now.
172 chop($running=`uname -r`);
173 if ($running eq $version) {
174 print STDERR
"WARN: Proceeding with removing running kernel image.\n";
177 #Now, they have an alternate kernel which they are currently running
179 # This is just us being nice to lilo users.
181 chdir("/") or die "could not chdir to /:$!\n";
183 if (-f
"/etc/$loader.conf") { #I know, could be a link, but ..
184 open (LILO
, "/etc/$loader.conf") || &success
(); # this is not critical
187 s/\#.*//; # nix the comments
188 next unless /^\s*image\s*=\s(\S+)/o;
190 if ($image && -e
$image) {
191 while (defined($image) && -l
$image) {
192 $image = readlink ($image);
194 if (defined($image) && -e
$image) {
195 $WouldInvalidate |= $image =~ /$kimage-$version/;
198 &success
(); # invalid $loader.conf file
202 &success
(); # invalid $loader.conf file
206 if ($WouldInvalidate) {
207 print STFERR
"WARN: Proceeding with removing running kernel image.\n";
213 # set the env var stem
214 $ENV{'STEM'} = "linux";
219 print STDERR
"Running $type hook script $script.\n";
220 system ("$script $version $realimageloc$kimage-$version") &&
221 print STDERR
"User $type hook script [$script] ";
224 print STDERR
"failed to execute: $!\n";
227 printf STDERR
"died with signal %d, %s coredump\n",
228 ($? & 127), ($? & 128) ?
'with' : 'without';
231 printf STDERR
"exited with value %d\n", $? >> 8;
239 if ($script =~ m
,^/,) {
240 # Full path provided for the hook script
242 &exec_script
($type,$script);
245 die "The provided $type hook script [$script] could not be run.\n";
249 # Look for it in a safe path
250 for my $path ('/bin', '/sbin', '/usr/bin', '/usr/sbin') {
251 if (-x
"$path/$script") {
252 &exec_script
($type, "$path/$script");
257 print STDERR
"Could not find $type hook script [$script].\n";
258 die "Looked in: '/bin', '/sbin', '/usr/bin', '/usr/sbin'\n";
268 $ENV{'DEB_MAINT_PARAMS'}="$options";
270 ## Run user hook script here, if any
271 if (-x
"$prerm_hook") {
272 &run_hook
("prerm", $prerm_hook);
274 if (-d
"/etc/kernel/prerm.d") {
275 print STDERR
"Examining /etc/kernel/prerm.d.\n";
276 system ("run-parts --verbose --exit-on-error --arg=$version " .
277 "--arg=$realimageloc$kimage-$version /etc/kernel/prerm.d") &&
278 die "Failed to process /etc/kernel/prerm.d";
280 if (-d
"/etc/kernel/prerm.d/$version") {
281 print STDERR
"Examining /etc/kernel/prerm.d/$version.\n";
282 system ("run-parts --verbose --exit-on-error --arg=$version" .
283 " --arg=$realimageloc$kimage-$version " .
284 "/etc/kernel/prerm.d/$version") &&
285 die "Failed to process /etc/kernel/prerm.d/$version";
289 # NOTE: need to keep this list in sync with rules.d/2-binary-arch.mk
290 my %files_to_keep = (
291 'modules.builtin' => 1,
292 'modules.order' => 1,
295 for my $file (</lib/modules
/$version/modules
.*>) {
296 $short = $file; $short =~ s
,.*/,,;
297 if (!defined $files_to_keep{$short}) {