git.zerfleddert.de Git - m1-debian/blob - m1di.pl

   1 #!/usr/bin/perl
   2
   3 # SPDX-License-Identifier: MIT
   4
   5 # Todo:
   6 # Create an exclude identifier list of all Apple volumes and build a safetey check
   7 # Detect if the paritions already exist and offer to reinstall system
   8 # Let the use pick between u-boot and untethered m1n1
   9 # Check that there is at least 1.5 GB space
  10 # Make sure that there is only one free region
  11
  12 use strict;
  13
  14 my ($identifier, $size);
  15
  16 sub
  17 find_identifier_before_free_space
  18 {
  19         my $identifier = undef;
  20         my $size = undef;
  21
  22         for my $line (`diskutil list /dev/disk0`) {
  23
  24                 if ($line =~ /^\s+\(free space\)\s+(\d+.\d GB)/) {
  25                         $size = $1;
  26                         $size =~ s/\s+//g;
  27                         last;
  28                 }
  29
  30                 if ($line =~ /(disk0s\d)$/) {
  31                         $identifier = $1;
  32                 }
  33         }
  34
  35         die if not defined $identifier;
  36         die if not defined $size;
  37
  38         return ($identifier, $size);
  39 }
  40
  41 die "This script must be run as root\n" if ($< != 0);
  42
  43 ($identifier, $size) = find_identifier_before_free_space();
  44 system("diskutil addPartition $identifier %EFI% LB 512MB");
  45
  46 $identifier = undef;
  47
  48 for my $line (`diskutil list /dev/disk0`) {
  49         if ($line =~ /EFI.*(disk0s\d)/) {
  50                 $identifier = $1;
  51         }
  52 }
  53
  54 die if not defined $identifier;
  55
  56 system("newfs_msdos /dev/$identifier");
  57 system("mkdir -p /Volumes/efi");
  58 system("mount -t msdos /dev/$identifier /Volumes/efi");
  59 chdir('/Volumes/efi');
  60 system('curl -sL https://tg.st/u/efi.tgz | tar -xz');
  61 system('curl -sL tg.st/u/fwx.sh | bash');
  62 system('mkdir -p /Volumes/efi/vendorfw');
  63 system('cp /tmp/linux-firmware.tar /Volumes/efi/vendorfw/firmware.tar');
  64 chdir('/var/root');
  65 system('umount /Volumes/efi');
  66
  67 ($identifier, $size) = find_identifier_before_free_space();
  68 system("diskutil addPartition $identifier %Linux% %noformat% $size");
  69
  70 $identifier = undef;
  71
  72 for my $line (`diskutil list /dev/disk0`) {
  73         if ($line =~ /Linux Filesystem.*(disk0s\d)/) {
  74                 $identifier = $1;
  75         }
  76 }
  77
  78 die if not defined $identifier;
  79
  80 system("curl -L https://tg.st/u/m1.tgz | tar -xOz | dd of=/dev/$identifier bs=8m");