1 | #!/usr/bin/perl -w
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2 | #
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3 | # $Id: parted2fdisk.pl 88 2005-10-27 20:35:13Z bcornec $
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4 | #
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5 | # parted2fdisk: fdisk like interface for parted
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6 | # [developped for mindi/mondo http://mondorescue.berlios.de]
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7 | #
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8 | # Aims to be architecture independant (i386/ia64)
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9 | # Tested on RHAS 2.1 ia64 - Mandrake 9.0 ia64 - RHAS 3.0 ia64
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10 | #
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11 | # (c) Bruno Cornec <Bruno.Cornec@hp.com>
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12 | # Licensed under the GPL
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13 |
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14 | use strict;
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15 |
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16 | $ENV{LANG} = "C";
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17 | $ENV{LANGUAGE} = "C";
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18 | $ENV{LC_ALL} = "C";
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19 |
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20 | # Log
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21 | my $flog = "/tmp/parted2fdisk.log";
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22 | open(FLOG, "> $flog") || die "Unable to open $flog";
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23 |
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24 | my $fdisk = "/sbin/fdisk";
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25 | my $parted = "/sbin/parted";
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26 |
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27 | my $i;
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28 | my $l;
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29 | my $part;
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30 | my $wpart;
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31 | my $start = "";
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32 | my $end = "";
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33 | my %start;
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34 | my %end;
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35 | my %type;
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36 | my %flags;
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37 | my $arch;
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38 | my $fake = 0;
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39 |
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40 | # Determine on which arch we're running
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41 | if (defined ($ENV{ARCH})) {
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42 | $arch = $ENV{ARCH};
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43 | } else {
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44 | $arch = `"/bin/arch"`;
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45 | chomp($arch);
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46 | }
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47 |
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48 | #
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49 | # Looking for fdisk
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50 | #
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51 | $fdisk = is_lsb($fdisk);
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52 | #
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53 | # We always use fdisk except on ia64 with GPT types of
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54 | # partition tables where we need parted
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55 | # All should return fdisk like format so that callers
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56 | # think they have called fdisk directly
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57 | #
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58 | my $un;
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59 | my $type;
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60 | my $args = "";
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61 | my $device = "";
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62 | my $endmax = "";
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63 |
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64 | if ($#ARGV < 0) {
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65 | printf FLOG "No arguments given exiting ...\n";
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66 | mysyn();
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67 | }
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68 |
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69 | my %pid = ( "FAT" => "6",
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70 | "fat32" => "b",
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71 | "fat16" => "e",
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72 | "ext2" => "83",
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73 | "ext3" => "83",
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74 | "linux-swap" => "82",
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75 | "LVM" => "8e",
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76 | "" => "",
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77 | );
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78 | my %pnum;
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79 |
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80 | # Reverse table of pid
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81 | while (($i,$l) = each %pid) {
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82 | next if ($i eq "ext2");
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83 | $pnum{$l} = $i;
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84 | }
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85 |
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86 | foreach $i (@ARGV) {
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87 | # We support at most one option and one device
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88 | print FLOG "Parameter found : $i\n";
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89 | if ($i =~ /^\/dev\//) {
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90 | $device = $i;
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91 | next;
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92 | } elsif ($i =~ /^-/) {
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93 | $args = $i;
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94 | next;
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95 | } else {
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96 | mysyn();
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97 | }
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98 | }
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99 |
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100 | if (($args ne "") and ($device eq "")) {
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101 | mysyn();
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102 | }
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103 |
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104 | # -s takes a partition as arg
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105 | if ($args =~ /-s/) {
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106 | $wpart = $device;
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107 | $device =~ s/[0-9]+$//;
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108 | }
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109 |
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110 | if ($args =~ /-n/) {
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111 | print FLOG "Fake mode. Nothing will be really done\n";
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112 | $fake = 1;
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113 | }
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114 |
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115 | print FLOG "Called with device $device and arg $args\n";
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116 |
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117 | if ($arch =~ /^ia64/) {
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118 | # Check partition table type
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119 | print FLOG "We're on ia64 ...\n";
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120 | $parted = is_lsb($parted);
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121 | $type = which_type($device);
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122 | if ($type ne "msdos") {
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123 | print FLOG "Not an msdos type of disk label\n";
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124 | if ($args =~ /-l/) {
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125 | fdisk_list($device,undef,\%start,\%end);
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126 | } elsif ($args =~ /-s/) {
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127 | fdisk_list($device,$wpart,\%start,\%end);
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128 | } elsif (($args =~ /-/) and ($fake == 0)) {
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129 | printf FLOG "Option not supported ($args) ...\n";
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130 | printf FLOG "Please report to the author\n";
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131 | mysyn();
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132 | } else {
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133 | # Read fdisk orders on stdin and pass them to parted
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134 | # on the command line as parted doesn't read on stdin
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135 | print FLOG "Translating fdisk command to parted\n";
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136 | while ($i = <STDIN>) {
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137 | if ($i =~ /^p$/) {
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138 | fdisk_list($device,undef,\%start,\%end);
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139 | }
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140 | elsif ($i =~ /^n$/) {
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141 | fdisk_list($device,undef,\%start,\%end);
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142 | if ($type ne "gpt") {
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143 | print FLOG "Forcing GPT type of disk label\n";
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144 | print FLOG "mklabel gpt\n";
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145 | system "$parted -s $device mklabel gpt\n" if ($fake != 0);
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146 | $type = "gpt";
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147 | }
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148 | $l = <STDIN>;
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149 | if (not (defined $l)) {
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150 | print FLOG "no primary/extended arg given for creation... assuming primary\n";
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151 | $l = "p";
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152 | }
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153 | chomp($l);
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154 | $part = <STDIN>;
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155 | if ((not (defined $part)) || ($part eq "")) {
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156 | print FLOG "no partition given for creation... skipping\n";
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157 | next;
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158 | }
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159 | chomp($part);
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160 | $start = <STDIN>;
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161 | chomp($start);
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162 | if ((not (defined $start)) || ($start eq "")) {
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163 | if (defined $start{$part-1}) {
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164 | $start = scalar $end{$part-1} + 0.001;
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165 | print FLOG "no start cyl given for creation... assuming the following $start\n";
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166 | } else {
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167 | print FLOG "no start cyl given for creation... assuming the following 1\n";
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168 | $start = 1;
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169 | }
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170 | }
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171 | $start = 1 if ($start < 1);
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172 | print FLOG "start cyl : $start\n";
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173 | $un = get_un($device);
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174 | # parted needs MB
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175 | $start = $start * $un / 1048576;
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176 | # this is a size in B/KB/MB/GB
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177 | $endmax = get_max($device);
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178 | $end = <STDIN>;
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179 | chomp($end);
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180 | if ((not (defined $end)) || ($end eq "")) {
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181 | print FLOG "no end cyl given for creation... assuming full disk)\n";
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182 | $end = $endmax;
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183 | }
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184 | # Handles end syntaxes (+, K, M, ...)
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185 | # to give cylinders
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186 | if ($end =~ /^\+/) {
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187 | $end =~ s/^\+//;
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188 | if ($end =~ /K$/) {
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189 | $end =~ s/K$//;
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190 | $end *= 1000;
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191 | } elsif ($end =~ /M$/) {
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192 | $end =~ s/M$//;
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193 | $end *= 1000000;
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194 | } elsif ($end =~ /G$/) {
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195 | $end =~ s/G$//;
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196 | $end *= 1000000000;
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197 | }
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198 | # This gives the number of cyl
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199 | $end /= $un;
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200 | $end = sprintf("%d",$end);
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201 | $end += $start - 0.001;
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202 | # We now have the end cyl
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203 | }
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204 | print FLOG "end cyl : $end\n";
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205 | # parted needs MB
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206 | $end = $end * $un / 1048576;
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207 | $end = $endmax if ($end > $endmax);
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208 | print FLOG "n $l $part => mkpart primary $start $end\n";
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209 | system "$parted -s $device mkpart primary ext2 $start $end\n" if ($fake != 0);
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210 | }
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211 | elsif ($i =~ /^d$/) {
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212 | $part = <STDIN>;
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213 | if (not (defined $part)) {
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214 | print FLOG "no partition given for deletion... skipping\n";
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215 | next;
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216 | }
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217 | chomp($part);
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218 | print FLOG "d $part => rm $part\n";
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219 | system "$parted -s $device rm $part\n" if ($fake != 0);
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220 | get_parted($device,undef,\%start,\%end,undef,undef);
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221 | }
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222 | elsif ($i =~ /^w$/) {
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223 | print FLOG "w => quit\n";
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224 | }
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225 | elsif ($i =~ /^t$/) {
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226 | $part = <STDIN>;
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227 | if (not (defined $part)) {
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228 | print FLOG "no partition given for tagging... skipping\n";
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229 | next;
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230 | }
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231 | chomp($part);
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232 | $l = <STDIN>;
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233 | if (not (defined $l)) {
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234 | print FLOG "no type given for tagging partition $part... skipping\n";
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235 | next;
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236 | }
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237 | chomp($l);
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238 | if (not (defined $pnum{$l})) {
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239 | print FLOG "no partition number given for $l... please report to the author\n";
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240 | next;
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241 | }
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242 | print FLOG "t $part => mkfs $part $pnum{$l}\n";
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243 | system "$parted -s $device mkfs $part $pnum{$l}\n" if ($fake != 0);
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244 | }
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245 | elsif ($i =~ /^a$/) {
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246 | $part = <STDIN>;
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247 | if (not (defined $part)) {
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248 | print FLOG "no partition given for tagging... skipping\n";
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249 | next;
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250 | }
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251 | chomp($part);
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252 | print FLOG "a $part => set $part boot on\n";
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253 | system "$parted -s $device set $part boot on\n" if ($fake != 0);
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254 | }
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255 | elsif ($i =~ /^q$/) {
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256 | print FLOG "q => quit\n";
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257 | }
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258 | else {
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259 | print FLOG "Unknown command: $i\n";
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260 | next;
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261 | }
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262 |
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263 | }
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264 | }
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265 | myexit(0);
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266 | }
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267 | }
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268 |
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269 | #
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270 | # Else everything is for fdisk
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271 | #
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272 | # Print only mode
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273 | print FLOG "Passing everything to the real fdisk\n";
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274 | my $fargs = join(@ARGV);
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275 |
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276 | if ($args =~ /^-/) {
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277 | # -l or -s
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278 | open (FDISK, "$fdisk $fargs |") || die "Unable to read from $fdisk";
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279 | while (<FDISK>) {
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280 | print;
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281 | }
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282 | close(FDISK);
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283 | } else {
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284 | # Modification mode
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285 | open (FDISK, "| $fdisk $fargs") || die "Unable to modify through $fdisk";
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286 | while (<STDIN>) {
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287 | print FDISK;
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288 | }
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289 | close(FDISK);
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290 | close(STDIN);
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291 | }
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292 | myexit(0);
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293 |
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294 |
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295 | # Is your system LSB ?
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296 | sub is_lsb {
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297 |
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298 | my $cmd = shift;
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299 | my $basename = basename($cmd);
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300 | my $mindifdisk="/usr/local/bin/fdisk";
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301 |
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302 | if ($cmd =~ /fdisk/) {
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303 | if ($arch =~ /^ia64/) {
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304 | if (-l $cmd) {
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305 | print FLOG "Your system is ready for mondo-archive on ia64\n";
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306 | } else {
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307 | print FLOG "Your system is ready for mondo-restore on ia64\n";
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308 | }
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309 | if (-x $mindifdisk) {
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310 | $cmd = $mindifdisk;
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311 | } else {
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312 | print FLOG "Your system doesn't provide $mindifdisk\n";
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313 | print FLOG "Please use mindi-x.yz-ia64.rpm on the system to backup\n";
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314 | myexit(-1);
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315 | }
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316 | }
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317 | }
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318 | if (not (-x $cmd)) {
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319 | print FLOG "Your system is not LSB/mondo compliant: $basename was not found as $cmd\n";
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320 | print FLOG "Searching elswhere...";
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321 | foreach $i (split(':',$ENV{PATH})) {
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322 | if (-x "$i/$basename") {
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323 | $cmd = "$i/$basename";
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324 | print FLOG "Found $cmd, using it !\n";
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325 | last;
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326 | }
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327 | }
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328 | if (not (-x $cmd)) {
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329 | print FLOG "Your system doesn't provide $basename in the PATH\n";
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330 | print FLOG "Please correct it before relaunching\n";
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331 | myexit(-1);
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332 | }
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333 | }
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334 | return($cmd);
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335 | }
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336 |
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337 | sub fdisk_list {
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338 |
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339 | my $device = shift;
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340 | my $wpart = shift;
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341 | my $start = shift;
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342 | my $end = shift;
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343 |
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344 | my $un;
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345 | my $endmax;
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346 | my $d;
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347 | my $n;
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348 |
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349 | my %cmt = ( "FAT" => "FAT",
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350 | "ext2" => "Linux",
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351 | "ext3" => "Linux",
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352 | "linux-swap" => "Linux swap",
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353 | "LVM" => "Linux LVM",
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354 | "fat16" => "fat16",
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355 | "fat32" => "fat32",
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356 | "" => "Linux",
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357 | );
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358 |
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359 | my $part;
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360 | my $mstart;
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361 | my $mend;
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362 | my $length;
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363 | my $pid;
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364 | my $cmt;
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365 | format FLOG1 =
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366 | @<<<<<<<<<<<< @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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367 | $part, $mstart, $mend, $length, $pid, $cmt
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368 | .
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369 | format FLOG2 =
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370 | @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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371 | $part,
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372 | @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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373 | $mstart, $mend, $length, $pid, $cmt
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374 | .
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375 | format STDOUT1 =
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376 | @<<<<<<<<<<<< @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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377 | $part, $mstart, $mend, $length, $pid, $cmt
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378 | .
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379 | format STDOUT2 =
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380 | @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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381 | $part,
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382 | @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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383 | $mstart, $mend, $length, $pid, $cmt
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384 | .
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385 | #/dev/hda1 1 77579 39099374+ ee EFI GPT
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386 |
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387 | #
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388 | # Keep Fdisk headers
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389 | #
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390 | # this will return bytes
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391 | $un = get_un ($device,$wpart);
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392 | $endmax = get_max($device);
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393 | # This will return MB
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394 | get_parted ($device,$start,$end,\%type,\%flags);
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395 |
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396 | while (($n,$d) = each %type) {
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397 | # Print infos fdisk like
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398 | $part = ${device}.$n;
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399 | # start and end are in cylinder in fdisk format
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400 | # so return in MB * 1MB / what represents 1 cyl in B
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401 | $mstart = sprintf("%d",$$start{$n}*1048576/$un);
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402 | $mstart = 1 if ($mstart < 1);
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403 | $mend = sprintf("%d",$$end{$n}*1048576/$un - 1);
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404 | $mend = $endmax if ($mend > $endmax);
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405 | # length is in 1K blocks
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406 | $length = sprintf("%d",($mend-$mstart+1)*$un/1024);
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407 | $pid = $pid{$type{$n}};
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408 | $cmt = $cmt{$type{$n}};
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409 | print FLOG "$part - $mstart - $mend - $length\n";
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410 |
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411 | if (not (defined $wpart)) {
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412 | if (length($part) > 13) {
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413 | open(STDOUT2,">&STDOUT") || die "Unable to open STDOUT2";
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414 | select(STDOUT2);
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415 | write;
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416 | open(FLOG2,">&FLOG") || die "Unable to open FLOG2";
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417 | select(FLOG2);
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418 | write;
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419 | select(STDOUT);
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420 | close(FLOG2);
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421 | close(STDOUT2);
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422 | } else {
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423 | open(STDOUT1,">&STDOUT") || die "Unable to open STDOUT1";
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424 | select(STDOUT1);
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425 | write;
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426 | open(FLOG1,">&FLOG") || die "Unable to open FLOG1";
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427 | select(FLOG1);
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428 | write;
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429 | select(STDOUT);
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430 | close(FLOG1);
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431 | close(STDOUT1);
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432 | }
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433 | } else {
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434 | # manage the -s option of fdisk here
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435 | print "$length\n" if ($part eq $wpart);
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436 | print FLOG "$part has $length KBytes\n" if ($part eq $wpart);
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437 | }
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438 | }
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439 | close(FDISK);
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440 | close(PARTED);
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441 | }
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442 |
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443 | #
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444 | # Get max size from fdisk
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445 | #
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446 | sub get_max {
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447 |
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448 | my $device = shift;
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449 | my $max = 0;
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450 | my $foo;
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451 |
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452 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
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453 | while (<FDISK>) {
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454 | if ($_ =~ /heads/) {
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455 | chomp;
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456 | $max = $_;
|
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457 | $max =~ s/.* ([0-9]+) cylinders/$1/;
|
---|
458 | }
|
---|
459 | }
|
---|
460 | close(FDISK);
|
---|
461 | print FLOG "get_max returns $max\n";
|
---|
462 | return($max);
|
---|
463 | }
|
---|
464 |
|
---|
465 | #
|
---|
466 | # Get units from fdisk (cylinder size)
|
---|
467 | #
|
---|
468 | sub get_un {
|
---|
469 |
|
---|
470 | my $device = shift;
|
---|
471 | my $wpart = shift;
|
---|
472 | my $un = 0;
|
---|
473 | my $foo;
|
---|
474 |
|
---|
475 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
|
---|
476 | while (<FDISK>) {
|
---|
477 | print if (($_ !~ /^\/dev\//) and (not (defined $wpart)));
|
---|
478 | if ($_ =~ /^Units/) {
|
---|
479 | ($foo, $un , $foo) = split /=/;
|
---|
480 | $un =~ s/[A-z\s=]//g;
|
---|
481 | $un = eval($un);
|
---|
482 | }
|
---|
483 | }
|
---|
484 | close(FDISK);
|
---|
485 | print FLOG "get_un returns $un\n";
|
---|
486 | return($un);
|
---|
487 | }
|
---|
488 |
|
---|
489 | #
|
---|
490 | # Parted gives info in MB
|
---|
491 | #
|
---|
492 | sub get_parted {
|
---|
493 |
|
---|
494 | my $device = shift;
|
---|
495 | my $start = shift;
|
---|
496 | my $end = shift;
|
---|
497 | my $type = shift;
|
---|
498 | my $flags = shift;
|
---|
499 | my $d;
|
---|
500 | my $n;
|
---|
501 |
|
---|
502 | open (PARTED, "$parted -s $device print |") || die "Unable to read from $parted";
|
---|
503 | # Skip 3 first lines
|
---|
504 | $d = <PARTED>;
|
---|
505 | $d = <PARTED>;
|
---|
506 | $d = <PARTED>;
|
---|
507 | print FLOG "Got from parted: \n";
|
---|
508 | print FLOG "Minor Start End Filesystem Flags\n";
|
---|
509 | # Get info from each partition line
|
---|
510 | while (($n,$d) = split(/\s/, <PARTED>,2)) {
|
---|
511 | chomp($d);
|
---|
512 | next if ($n !~ /^[1-9]/);
|
---|
513 | $d =~ s/^\s*//;
|
---|
514 | $d =~ s/\s+/ /g;
|
---|
515 | ($$start{$n},$$end{$n},$$type{$n},$$flags{$n}) = split(/ /,$d);
|
---|
516 | $$start{$n} = "" if (not defined $$start{$n});
|
---|
517 | $$end{$n} = "" if (not defined $$end{$n});
|
---|
518 | $$type{$n} = "" if (not defined $$type{$n});
|
---|
519 | $$flags{$n} = "" if (not defined $$flags{$n});
|
---|
520 | print FLOG "$n $$start{$n} $$end{$n} $$type{$n} $$flags{$n}\n";
|
---|
521 | }
|
---|
522 | close(PARTED);
|
---|
523 | }
|
---|
524 |
|
---|
525 | # Based on Version 2.4 27-Sep-1996 Charles Bailey bailey@genetics.upenn.edu
|
---|
526 | # in Basename.pm
|
---|
527 |
|
---|
528 | sub basename {
|
---|
529 |
|
---|
530 | my($fullname) = shift;
|
---|
531 |
|
---|
532 | my($dirpath,$basename);
|
---|
533 |
|
---|
534 | ($dirpath,$basename) = ($fullname =~ m#^(.*/)?(.*)#s);
|
---|
535 |
|
---|
536 | return($basename);
|
---|
537 | }
|
---|
538 |
|
---|
539 | sub myexit {
|
---|
540 |
|
---|
541 | my $val=shift;
|
---|
542 |
|
---|
543 | close(FLOG);
|
---|
544 | exit($val);
|
---|
545 | }
|
---|
546 |
|
---|
547 | sub which_type {
|
---|
548 |
|
---|
549 | my $device = shift;
|
---|
550 | my $type = "";
|
---|
551 |
|
---|
552 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
|
---|
553 | while (<FDISK>) {
|
---|
554 | if ($_ =~ /EFI GPT/) {
|
---|
555 | $type= "gpt";
|
---|
556 | print FLOG "Found a GPT partition format\n";
|
---|
557 | last;
|
---|
558 | }
|
---|
559 | }
|
---|
560 | close(FDISK);
|
---|
561 | open (PARTED, "$parted -s $device print|") || die "Unable to read from $fdisk";
|
---|
562 | while (<PARTED>) {
|
---|
563 | if ($_ =~ /Disk label type: msdos/) {
|
---|
564 | $type= "msdos";
|
---|
565 | print FLOG "Found a msdos partition format\n";
|
---|
566 | last;
|
---|
567 | }
|
---|
568 | }
|
---|
569 | close(FDISK);
|
---|
570 | return ($type);
|
---|
571 | }
|
---|
572 |
|
---|
573 | sub mysyn {
|
---|
574 | print "Syntax: $0 [-l] device | [-s] partition\n";
|
---|
575 | myexit(-1);
|
---|
576 | }
|
---|