mirror of
https://github.com/libguestfs/libguestfs.git
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122 lines
2.9 KiB
Perl
Executable File
122 lines
2.9 KiB
Perl
Executable File
#!/usr/bin/env perl
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# Copyright (C) 2013 Red Hat Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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# This ambitious script creates a complete, bootable guest.
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use strict;
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use warnings;
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use Sys::Guestfs;
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exit 77 if $ENV{SKIP_TEST_SYSLINUX_PL};
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my $bootloader = $ENV{BOOTLOADER} || "syslinux";
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my $disk = "syslinux/$bootloader-guest.img";
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# Find prerequisites.
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my $mbr;
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my @mbr_paths = (
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"/usr/share/syslinux/mbr.bin",
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"/usr/lib/syslinux/mbr.bin",
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"/usr/lib/syslinux/mbr/mbr.bin",
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"/usr/lib/syslinux/bios/mbr.bin",
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"/usr/lib/SYSLINUX/mbr.bin"
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);
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foreach my $m (@mbr_paths) {
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if (-f $m) {
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$mbr = $m;
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last;
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}
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}
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unless (defined $mbr) {
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print STDERR "$0: mbr.bin (from SYSLINUX) not found, skipping test\n";
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exit 77;
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}
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print "mbr: $mbr\n";
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my $mbr_data;
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{
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local $/ = undef;
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open MBR, "$mbr" or die "$mbr: $!";
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$mbr_data = <MBR>;
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}
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die "invalid mbr.bin" unless length ($mbr_data) == 440;
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my $kernel = `ls -1rv /boot/vmlinuz* | head -1`;
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chomp $kernel;
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unless ($kernel) {
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print STDERR "$0: kernel could not be found, skipping test\n";
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exit 77;
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}
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print "kernel: $kernel\n";
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my $g = Sys::Guestfs->new ();
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# Create the disk.
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$g->disk_create ($disk, "raw", 100*1024*1024);
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$g->add_drive ($disk, format => "raw");
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$g->launch ();
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unless ($g->feature_available ([$bootloader])) {
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print STDERR
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"$0: skipping test because '$bootloader' feature is not available\n";
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exit 77
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}
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# Format the disk.
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$g->part_disk ("/dev/sda", "mbr");
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if ($bootloader eq "syslinux") {
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$g->mkfs ("msdos", "/dev/sda1");
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} else {
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$g->mkfs ("ext3", "/dev/sda1");
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}
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$g->mount ("/dev/sda1", "/");
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# Install the kernel.
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$g->upload ($kernel, "/vmlinuz");
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# Install the SYSLINUX configuration file.
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$g->write ("/syslinux.cfg", <<_END);
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DEFAULT linux
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LABEL linux
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SAY Booting the kernel from /vmlinuz
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KERNEL vmlinuz
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APPEND ro root=/dev/sda1
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_END
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$g->umount_all ();
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# Install the bootloader.
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$g->pwrite_device ("/dev/sda", $mbr_data, 0);
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if ($bootloader eq "syslinux") {
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$g->syslinux ("/dev/sda1");
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} else {
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$g->mount ("/dev/sda1", "/");
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$g->extlinux ("/");
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$g->umount ("/");
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}
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$g->part_set_bootable ("/dev/sda", 1, 1);
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# Finish off.
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$g->shutdown ();
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# Clean up the test file.
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unlink ($disk);
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