1 | #!/usr/bin/perl -w
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2 | #
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3 | # $Id: parted2fdisk.pl 576 2006-05-25 12:00:37Z 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://www.mondorescue.org]
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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 $cylstart;
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34 | my $cylend;
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35 | my %start;
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36 | my %end;
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37 | my %type;
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38 | my %flags;
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39 | my $arch;
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40 | my $fake = 0;
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41 |
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42 | # Determine on which arch we're running
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43 | if (defined ($ENV{ARCH})) {
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44 | $arch = $ENV{ARCH};
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45 | } else {
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46 | $arch = `"uname -m"`;
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47 | chomp($arch);
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48 | }
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49 |
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50 | #
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51 | # Looking for fdisk
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52 | #
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53 | $fdisk = is_lsb($fdisk);
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54 | #
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55 | # We always use fdisk except on ia64 with GPT types of
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56 | # partition tables where we need parted
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57 | # All should return fdisk like format so that callers
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58 | # think they have called fdisk directly
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59 | #
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60 | my $un;
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61 | my $type;
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62 | my $args = "";
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63 | my $device = "";
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64 | my $endmax = "";
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65 |
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66 | if ($#ARGV < 0) {
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67 | printf FLOG "No arguments given exiting ...\n";
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68 | mysyn();
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69 | }
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70 |
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71 | my %pid = ( "FAT" => "6",
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72 | "fat32" => "b",
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73 | "fat16" => "e",
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74 | "ext2" => "83",
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75 | "ext3" => "83",
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76 | "linux-swap" => "82",
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77 | "LVM" => "8e",
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78 | "" => "",
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79 | );
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80 | my %pnum;
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81 |
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82 | # Reverse table of pid
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83 | while (($i,$l) = each %pid) {
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84 | next if ($i eq "ext2");
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85 | $pnum{$l} = $i;
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86 | }
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87 |
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88 | foreach $i (@ARGV) {
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89 | # We support at most one option and one device
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90 | print FLOG "Parameter found : $i\n";
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91 | if ($i =~ /^\/dev\//) {
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92 | $device = $i;
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93 | next;
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94 | } elsif ($i =~ /^-/) {
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95 | $args = $i;
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96 | next;
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97 | } else {
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98 | mysyn();
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99 | }
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100 | }
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101 |
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102 | if (($args ne "") and ($device eq "")) {
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103 | mysyn();
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104 | }
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105 |
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106 | # -s takes a partition as arg
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107 | if ($args =~ /-s/) {
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108 | $wpart = $device;
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109 | $device =~ s/[0-9]+$//;
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110 | }
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111 |
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112 | if ($args =~ /-n/) {
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113 | print FLOG "Fake mode. Nothing will be really done\n";
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114 | $fake = 1;
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115 | }
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116 |
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117 | print FLOG "Called with device $device and arg $args\n";
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118 |
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119 | if ($arch =~ /^ia64/) {
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120 | # Check partition table type
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121 | print FLOG "We're on ia64 ...\n";
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122 | $parted = is_lsb($parted);
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123 | $type = which_type($device);
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124 | if ($type ne "msdos") {
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125 | print FLOG "Not an msdos type of disk label\n";
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126 | if ($args =~ /-l/) {
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127 | fdisk_list($device,undef,\%start,\%end, 1);
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128 | } elsif ($args =~ /-s/) {
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129 | fdisk_list($device,$wpart,\%start,\%end, 1);
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130 | } elsif (($args =~ /-/) and ($fake == 0)) {
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131 | printf FLOG "Option not supported ($args) ...\n";
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132 | printf FLOG "Please report to the author\n";
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133 | mysyn();
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134 | } else {
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135 | # Read fdisk orders on stdin and pass them to parted
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136 | # on the command line as parted doesn't read on stdin
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137 | print FLOG "Translating fdisk command to parted\n";
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138 | while ($i = <STDIN>) {
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139 | if ($i =~ /^p$/) {
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140 | fdisk_list($device,undef,\%start,\%end, 1);
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141 | }
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142 | elsif ($i =~ /^n$/) {
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143 | fdisk_list($device,undef,\%start,\%end, 0);
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144 | if ($type ne "gpt") {
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145 | print FLOG "Forcing GPT type of disk label\n";
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146 | print FLOG "mklabel gpt\n";
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147 | system "$parted -s $device mklabel gpt\n" if ($fake == 0);
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148 | $type = "gpt";
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149 | }
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150 | $l = <STDIN>;
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151 | if (not (defined $l)) {
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152 | print FLOG "no primary/extended arg given for creation... assuming primary\n";
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153 | $l = "p";
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154 | }
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155 | chomp($l);
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156 | $part = <STDIN>;
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157 | if ((not (defined $part)) || ($part eq "")) {
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158 | print FLOG "no partition given for creation... skipping\n";
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159 | next;
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160 | }
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161 | chomp($part);
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162 | $cylstart = <STDIN>;
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163 | chomp($cylstart);
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164 | if ((not (defined $cylstart)) || ($cylstart eq "")) {
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165 | if (defined $start{$part-1}) {
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166 | # in MB => cyl
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167 | $cylstart = sprintf("%d",$end{$part-1}*1048576/$un + 1);
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168 | print FLOG "no start cyl given for creation... assuming the following $cylstart\n";
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169 | } else {
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170 | print FLOG "no start cyl given for creation... assuming the following 1\n";
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171 | $cylstart = 1;
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172 | }
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173 | }
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174 | $cylstart = 1 if ($cylstart < 1);
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175 | print FLOG "start cyl : $cylstart\n";
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176 | $un = get_un($device, "", 0);
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177 | # parted needs MB
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178 | if ($cylstart == 1) {
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179 | $start = 0.01;
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180 | } else {
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181 | $start = $cylstart* $un / 1048576 +0.001;
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182 | }
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183 | # this is a size in B/KB/MB/GB
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184 |
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185 | $endmax = get_max($device);
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186 | $cylend = <STDIN>;
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187 | chomp($cylend);
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188 | if ((not (defined $cylend)) || ($cylend eq "")) {
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189 | print FLOG "no end cyl given for creation... assuming full disk)\n";
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190 | $cylend = $endmax;
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191 | }
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192 | # Handles end syntaxes (+, K, M, ...)
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193 | # to give cylinders
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194 | if ($cylend =~ /^\+/) {
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195 | $cylend =~ s/^\+//;
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196 | if ($cylend =~ /K$/) {
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197 | $cylend =~ s/K$//;
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198 | $cylend *= 1024;
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199 | } elsif ($cylend =~ /M$/) {
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200 | $cylend =~ s/M$//;
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201 | $cylend *= 1048576;
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202 | } elsif ($cylend =~ /G$/) {
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203 | $cylend =~ s/G$//;
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204 | $cylend *= 1073741824;
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205 | }
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206 | # This gives the number of cyl
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207 | $cylend /= $un;
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208 | $cylend = sprintf("%d",$cylend);
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209 | $cylend += $cylstart - 0.001;
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210 | # We now have the end cyl
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211 | }
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212 | $cylend = $endmax if ($cylend > $endmax);
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213 | print FLOG "end cyl : $cylend\n";
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214 | # parted needs MB
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215 | $end = $cylend * $un / 1048576;
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216 | print FLOG "n $l $part $cylstart $cylend => mkpart primary $start $end\n";
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217 | system "$parted -s $device mkpart primary ext2 $start $end\n" if ($fake == 0);
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218 | }
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219 | elsif ($i =~ /^d$/) {
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220 | $part = <STDIN>;
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221 | if (not (defined $part)) {
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222 | print FLOG "no partition given for deletion... skipping\n";
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223 | next;
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224 | }
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225 | chomp($part);
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226 | print FLOG "d $part => rm $part\n";
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227 | system "$parted -s $device rm $part\n" if ($fake == 0);
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228 | get_parted($device,undef,\%start,\%end,undef);
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229 | }
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230 | elsif ($i =~ /^w$/) {
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231 | print FLOG "w => quit\n";
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232 | }
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233 | elsif ($i =~ /^t$/) {
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234 | $part = <STDIN>;
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235 | if (not (defined $part)) {
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236 | print FLOG "no partition given for tagging... skipping\n";
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237 | next;
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238 | }
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239 | chomp($part);
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240 | $l = <STDIN>;
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241 | if (not (defined $l)) {
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242 | print FLOG "no type given for tagging partition $part... skipping\n";
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243 | next;
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244 | }
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245 | chomp($l);
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246 | if (not (defined $pnum{$l})) {
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247 | print FLOG "no partition number given for $l... please report to the author\n";
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248 | next;
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249 | }
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250 | print FLOG "t $part $l => mkfs $part $pnum{$l}\n";
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251 | system "$parted -s $device mkfs $part $pnum{$l}\n" if ($fake == 0);
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252 | }
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253 | elsif ($i =~ /^a$/) {
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254 | $part = <STDIN>;
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255 | if (not (defined $part)) {
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256 | print FLOG "no partition given for tagging... skipping\n";
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257 | next;
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258 | }
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259 | chomp($part);
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260 | print FLOG "a $part => set $part boot on\n";
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261 | system "$parted -s $device set $part boot on\n" if ($fake == 0);
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262 | }
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263 | elsif ($i =~ /^q$/) {
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264 | print FLOG "q => quit\n";
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265 | }
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266 | else {
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267 | print FLOG "Unknown command: $i\n";
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268 | next;
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269 | }
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270 |
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271 | }
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272 | }
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273 | myexit(0);
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274 | }
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275 | }
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276 |
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277 | #
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278 | # Else everything is for fdisk
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279 | #
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280 | # Print only mode
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281 | print FLOG "Passing everything to the real fdisk\n";
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282 | my $fargs = join(@ARGV);
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283 |
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284 | if ($args =~ /^-/) {
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285 | # -l or -s
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286 | open (FDISK, "$fdisk $fargs |") || die "Unable to read from $fdisk";
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287 | while (<FDISK>) {
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288 | print;
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289 | }
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290 | close(FDISK);
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291 | } else {
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292 | # Modification mode
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293 | open (FDISK, "| $fdisk $fargs") || die "Unable to modify through $fdisk";
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294 | while (<STDIN>) {
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295 | print FDISK;
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296 | }
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297 | close(FDISK);
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298 | close(STDIN);
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299 | }
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300 | myexit(0);
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301 |
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302 |
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303 | # Is your system LSB ?
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304 | sub is_lsb {
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305 |
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306 | my $cmd = shift;
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307 | my $basename = basename($cmd);
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308 |
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309 | if (not (-x $cmd)) {
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310 | print FLOG "Your system is not LSB/mondo compliant: $basename was not found as $cmd\n";
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311 | print FLOG "Searching elswhere...";
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312 | foreach $i (split(':',$ENV{PATH})) {
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313 | if (-x "$i/$basename") {
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314 | $cmd = "$i/$basename";
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315 | print FLOG "Found $cmd, using it !\n";
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316 | last;
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317 | }
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318 | }
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319 | if (not (-x $cmd)) {
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320 | print FLOG "Your system doesn't provide $basename in the PATH\n";
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321 | print FLOG "Please correct it before relaunching\n";
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322 | myexit(-1);
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323 | }
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324 | }
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325 | return($cmd);
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326 | }
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327 |
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328 | sub fdisk_list {
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329 |
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330 | my $device = shift;
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331 | my $wpart = shift;
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332 | my $start = shift;
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333 | my $end = shift;
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334 | my $verbose = shift;
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335 |
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336 | my $un;
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337 | my $endmax;
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338 | my $d;
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339 | my $n;
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340 |
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341 | my %cmt = ( "FAT" => "FAT",
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342 | "ext2" => "Linux",
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343 | "ext3" => "Linux",
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344 | "linux-swap" => "Linux swap",
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345 | "LVM" => "Linux LVM",
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346 | "fat16" => "fat16",
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347 | "fat32" => "fat32",
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348 | "" => "Linux",
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349 | );
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350 |
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351 | my $part;
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352 | my $mstart;
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353 | my $mend;
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354 | my $length;
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355 | my $pid;
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356 | my $cmt;
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357 | format FLOG1 =
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358 | @<<<<<<<<<<<< @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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359 | $part, $mstart, $mend, $length, $pid, $cmt
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360 | .
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361 | format FLOG2 =
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362 | @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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363 | $part,
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364 | @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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365 | $mstart, $mend, $length, $pid, $cmt
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366 | .
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367 | format STDOUT1 =
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368 | @<<<<<<<<<<<< @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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369 | $part, $mstart, $mend, $length, $pid, $cmt
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370 | .
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371 | format STDOUT2 =
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372 | @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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373 | $part,
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374 | @>>>>>>>> @>>>>>>>> @>>>>>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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375 | $mstart, $mend, $length, $pid, $cmt
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376 | .
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377 | #/dev/hda1 1 77579 39099374+ ee EFI GPT
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378 |
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379 | #
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380 | # Keep Fdisk headers
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381 | #
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382 | # this will return bytes
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383 | $un = get_un ($device,$wpart,$verbose);
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384 |
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385 | $endmax = get_max($device);
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386 |
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387 | # This will return MB
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388 | get_parted ($device,$start,$end,\%type,\%flags);
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389 |
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390 | while (($n,$d) = each %type) {
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391 | # Print infos fdisk like
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392 | $part = ${device}.$n;
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393 | # start and end are in cylinder in fdisk format
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394 | # so return in MB * 1MB / what represents 1 cyl in B
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395 | $mstart = sprintf("%d",$$start{$n}*1048576/$un);
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396 | $mstart = 1 if ($mstart < 1);
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397 | $mend = sprintf("%d",$$end{$n}*1048576/$un - 1);
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398 | $mend = $endmax if ($mend > $endmax);
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399 | # length is in 1K blocks
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400 | $length = sprintf("%d",($mend-$mstart+1)*$un/1024);
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401 | $pid = $pid{$type{$n}};
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402 | $cmt = $cmt{$type{$n}};
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403 | #print FLOG "$part - $mstart - $mend - $length\n";
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404 |
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405 | if ($verbose == 1) {
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406 | if (not (defined $wpart)) {
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407 | if (length($part) > 13) {
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408 | open(STDOUT2,">&STDOUT") || die "Unable to open STDOUT2";
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409 | select(STDOUT2);
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410 | write;
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411 | open(FLOG2,">&FLOG") || die "Unable to open FLOG2";
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412 | select(FLOG2);
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413 | write;
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414 | select(STDOUT);
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415 | close(FLOG2);
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416 | close(STDOUT2);
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417 | } else {
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418 | open(STDOUT1,">&STDOUT") || die "Unable to open STDOUT1";
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419 | select(STDOUT1);
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420 | write;
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421 | open(FLOG1,">&FLOG") || die "Unable to open FLOG1";
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422 | select(FLOG1);
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423 | write;
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424 | select(STDOUT);
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425 | close(FLOG1);
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426 | close(STDOUT1);
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427 | }
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428 | } else {
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429 | # manage the -s option of fdisk here
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430 | print "$length\n" if ($part eq $wpart);
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431 | print FLOG "$part has $length KBytes\n" if ($part eq $wpart);
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432 | }
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433 | }
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434 | }
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435 | close(FDISK);
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436 | close(PARTED);
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437 | }
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438 |
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439 | #
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440 | # Get max size from fdisk
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441 | #
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442 | sub get_max {
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443 |
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444 | my $device = shift;
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445 | my $max = 0;
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446 | my $foo;
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447 |
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448 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
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449 | while (<FDISK>) {
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450 | if ($_ =~ /heads/) {
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451 | chomp;
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452 | $max = $_;
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453 | $max =~ s/.* ([0-9]+) cylinders/$1/;
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454 | }
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455 | }
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456 | close(FDISK);
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457 | print FLOG "get_max returns $max\n";
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458 | return($max);
|
---|
459 | }
|
---|
460 |
|
---|
461 | #
|
---|
462 | # Get units from fdisk (cylinder size)
|
---|
463 | #
|
---|
464 | sub get_un {
|
---|
465 |
|
---|
466 | my $device = shift;
|
---|
467 | my $wpart = shift;
|
---|
468 | my $verbose = shift;
|
---|
469 | my $un = 0;
|
---|
470 | my $foo;
|
---|
471 |
|
---|
472 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
|
---|
473 | while (<FDISK>) {
|
---|
474 | print if (($_ !~ /^\/dev\//) and (not (defined $wpart)) and ($verbose == 1));
|
---|
475 | if ($_ =~ /^Units/) {
|
---|
476 | ($foo, $un , $foo) = split /=/;
|
---|
477 | $un =~ s/[A-z\s=]//g;
|
---|
478 | $un = eval($un);
|
---|
479 | }
|
---|
480 | }
|
---|
481 | close(FDISK);
|
---|
482 | print FLOG "get_un returns $un\n";
|
---|
483 | return($un);
|
---|
484 | }
|
---|
485 |
|
---|
486 | #
|
---|
487 | # Parted gives info in MB
|
---|
488 | #
|
---|
489 | sub get_parted {
|
---|
490 |
|
---|
491 | my $device = shift;
|
---|
492 | my $start = shift;
|
---|
493 | my $end = shift;
|
---|
494 | my $type = shift;
|
---|
495 | my $flags = shift;
|
---|
496 | my $d;
|
---|
497 | my $n;
|
---|
498 |
|
---|
499 | open (PARTED, "$parted -s $device print |") || die "Unable to read from $parted";
|
---|
500 | # Skip 3 first lines
|
---|
501 | $d = <PARTED>;
|
---|
502 | $d = <PARTED>;
|
---|
503 | $d = <PARTED>;
|
---|
504 | print FLOG "Got from parted: \n";
|
---|
505 | print FLOG "Minor Start End Filesystem Flags\n";
|
---|
506 | # Get info from each partition line
|
---|
507 | while (($n,$d) = split(/\s/, <PARTED>,2)) {
|
---|
508 | chomp($d);
|
---|
509 | next if ($n !~ /^[1-9]/);
|
---|
510 | $d =~ s/^\s*//;
|
---|
511 | $d =~ s/\s+/ /g;
|
---|
512 | ($$start{$n},$$end{$n},$$type{$n},$$flags{$n}) = split(/ /,$d);
|
---|
513 | $$start{$n} = "" if (not defined $$start{$n});
|
---|
514 | $$end{$n} = "" if (not defined $$end{$n});
|
---|
515 | $$type{$n} = "" if (not defined $$type{$n});
|
---|
516 | $$flags{$n} = "" if (not defined $$flags{$n});
|
---|
517 | print FLOG "$n $$start{$n} $$end{$n} $$type{$n} $$flags{$n}\n";
|
---|
518 | }
|
---|
519 | close(PARTED);
|
---|
520 | }
|
---|
521 |
|
---|
522 | # Based on Version 2.4 27-Sep-1996 Charles Bailey bailey@genetics.upenn.edu
|
---|
523 | # in Basename.pm
|
---|
524 |
|
---|
525 | sub basename {
|
---|
526 |
|
---|
527 | my($fullname) = shift;
|
---|
528 |
|
---|
529 | my($dirpath,$basename);
|
---|
530 |
|
---|
531 | ($dirpath,$basename) = ($fullname =~ m#^(.*/)?(.*)#s);
|
---|
532 |
|
---|
533 | return($basename);
|
---|
534 | }
|
---|
535 |
|
---|
536 | sub myexit {
|
---|
537 |
|
---|
538 | my $val=shift;
|
---|
539 |
|
---|
540 | close(FLOG);
|
---|
541 | exit($val);
|
---|
542 | }
|
---|
543 |
|
---|
544 | sub which_type {
|
---|
545 |
|
---|
546 | my $device = shift;
|
---|
547 | my $type = "";
|
---|
548 |
|
---|
549 | open (FDISK, "$fdisk -l $device |") || die "Unable to read from $fdisk";
|
---|
550 | while (<FDISK>) {
|
---|
551 | if ($_ =~ /EFI GPT/) {
|
---|
552 | $type= "gpt";
|
---|
553 | print FLOG "Found a GPT partition format\n";
|
---|
554 | last;
|
---|
555 | }
|
---|
556 | }
|
---|
557 | close(FDISK);
|
---|
558 | open (PARTED, "$parted -s $device print|") || die "Unable to read from $fdisk";
|
---|
559 | while (<PARTED>) {
|
---|
560 | if ($_ =~ /Disk label type: msdos/) {
|
---|
561 | $type= "msdos";
|
---|
562 | print FLOG "Found a msdos partition format\n";
|
---|
563 | last;
|
---|
564 | }
|
---|
565 | }
|
---|
566 | close(FDISK);
|
---|
567 | return ($type);
|
---|
568 | }
|
---|
569 |
|
---|
570 | sub mysyn {
|
---|
571 | print "Syntax: $0 [-l] device | [-s] partition\n";
|
---|
572 | myexit(-1);
|
---|
573 | }
|
---|