mirror of
https://github.com/xcat2/xNBA.git
synced 2024-11-23 10:01:47 +00:00
46 lines
1.6 KiB
Perl
Executable File
46 lines
1.6 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
#
|
|
# A program to make a netbootable image from a LRP firewall floppy
|
|
# Tested on a Coyote Linux floppy
|
|
#
|
|
@cfg = `mtype a:syslinux.cfg`;
|
|
unless (defined(@cfg)) {
|
|
print "Cannot find syslinux.cfg on floppy\n";
|
|
exit 1;
|
|
}
|
|
($append) = grep(/^append/, @cfg); # find the append= line
|
|
chomp($append); # remove trailing newline
|
|
$append =~ s/append=//; # remove the append= at beginning
|
|
@args = split(/ /, $append); # split into arguments at whitespace
|
|
($root) = grep(/^initrd=/, @args); # find the initrd= argument
|
|
$root =~ s/^initrd=//; # remove the initrd= at beginning
|
|
($lrp) = grep(/^LRP=/, @args); # find the LRP= argument
|
|
$lrp =~ s/^LRP=//; # remove the LRP= at beginning
|
|
@lrp = split(/,/, $lrp); # split into filenames at ,
|
|
unshift(@lrp, $root); # prepend the root LRP filename
|
|
$append = '';
|
|
foreach $i (@args) { # rebuild the append string
|
|
next if ($i =~ /^initrd=/); # minus the unneeded parameters
|
|
next if ($i =~ /^LRP=/);
|
|
next if ($i =~ /^boot=/);
|
|
$append .= "$i ";
|
|
}
|
|
# print "$append\n";
|
|
$tempdir = "/tmp/lrp$$";
|
|
mkdir($tempdir, 0777) or die "$tempdir: $!\n";
|
|
chdir($tempdir) or die "$tempdir: $!\n";
|
|
foreach $i (@lrp) {
|
|
$i .= '.lrp' if $i !~ /\.lrp$/;
|
|
print "Unpacking $i\n";
|
|
system("mtype a:$i | tar zxvf -");
|
|
}
|
|
print "Repacking to /tmp/lrp.lrp\n";
|
|
system("tar zcf /tmp/lrp.lrp *");
|
|
chdir('/tmp') or die "/tmp: $!\n";
|
|
system("rm -fr $tempdir");
|
|
print "Extracting kernel image from floppy\n";
|
|
system("mtype a:linux > /tmp/lrp.ker");
|
|
print "Creating netboot image in /tmp/lrp.nb\n";
|
|
system("mkelf-linux --append='$append' --output=/tmp/lrp.nb /tmp/lrp.ker /tmp/lrp.lrp");
|
|
exit 0;
|