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#!/usr/bin/perl
@ARGV >= 2 or die "usage: $0 <image> cdrom|hd|network|network_ks\n";
($img, $type) = @ARGV;
$ks = "kickstart=floppy" if $type =~ s/_ks//;
$mnt = "/mnt/disk";
if ($>) {
$sudo = "sudo";
$ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}";
}
$install = $ {{
network => "install",
cdrom => "local-install",
hd => "local-install"
}}{$type} or die;
$0 =~ /initrd/ ?
initrd($mnt, $img) :
boot_img($mnt, $img);
sub __ { print @_, "\n"; system(@_); }
sub _ { __ @_; $? and die; }
sub initrd {
my ($mnt, $img) = @_;
my $tmp = "$ENV{HOME}/tmp/initrd";
_ "install -s install/installinit/init install/install1/sbin/init";
_ "install -s install/$install install/install1/sbin/install";
__ "$sudo umount $tmp $mnt 2>/dev/null";
_ "dd if=/dev/zero of=$tmp bs=1k count=2000";
_ "echo y | mke2fs $tmp";
_ "$sudo mount $tmp $mnt -o loop";
_ "$sudo cp -a install/install1/* $mnt";
_ "$sudo install -d $mnt/modules";
_ "$sudo cp -f modules/${type}_modules.cgz $mnt/modules/modules.cgz";
_ "$sudo cp -f modules/modules.dep $mnt/modules/";
_ "$sudo umount $mnt";
_ "gzip -9 -c $tmp > $img";
_ "rm -f $tmp";
}
sub boot_img {
my ($mnt, $img) = @_;
__ "$sudo umount $mnt 2>/dev/null";
_ "bunzip2 -c install/installinit/emptyboot.img.bz2 > $img";
_ "$sudo mount -o umask=0 $img $mnt -o loop";
_ "cat vmlinuz > $mnt/vmlinuz";
initrd("${mnt}2", "$mnt/initrd.gz");
output("$mnt/syslinux.cfg", "
default linux
prompt 0
label linux
kernel vmlinuz
append $ks ramdisk=32000 initrd=initrd.gz mdkinst $type
");
_ "cp -f install/installinit/ks.cfg $mnt 2>/dev/null" if $ks;
_ "sync";
}
sub output {
my $f = shift;
local *F;
open F, "> $f" or die "error writing to $f";
print F join '', @_;
}
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