-#!/usr/bin/perl -w
+#!/usr/bin/env perl
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
$CFG::genisoimage = "genisoimage";
$CFG::qemu = 'qemu-system-i386 -cpu coreduo -smp 2';
$CFG::default_target = '';
+$CFG::netif = 'eth0';
%CFG::targets = (
'qemu' => '--qemu',
"tud" => '--server=erwin.inf.tu-dresden.de:~sojka/boot/novaboot --rsync-flags="--chmod=Dg+s,ug+w,o-w,+rX --rsync-path=\"umask 002 && rsync\"" --grub --grub-prefix=(nd)/tftpboot/sojka/novaboot --grub-preamble="timeout 0" --concat --iprelay=141.76.48.80:2324 --scriptmod=s/\\\\bhostserial\\\\b/hostserialpci/g',
);
$rsync_flags = '';
$rom_prefix = 'rom://';
-$stty = 'raw -crtscts -onlcr 115200';
+$stty = 'raw -crtscts -onlcr -echo 115200';
$reset = 1; # Reset target by default
$interaction = 1; # Perform target interaction by default
$final_eol = 1;
-$netif = 'eth0';
+$netif = $CFG::netif;
$remote_expect_timeout = -1;
my @expect_seen = ();
$hostname = "";
}
my $files = join(" ", map({ ($file) = m/([^ ]*)/; $file; } ( @$modules, @bootloader_configs, @$copy)));
- map({ my $file = (split)[0]; die "$file: $!" if ! -f $file; } @$modules);
+ map({ my $file = (split)[0]; die "Not a file: $file: $!" if ! -e $file || -d $file; } @$modules);
my $istty = -t STDOUT && ($ENV{'TERM'} || 'dumb') ne 'dumb';
my $progress = $istty ? "--progress" : "";
if ($files) {
@$modules = map { if (/\.dtb$/) { $dtb=$_; (); } else { $_ } } @$modules;
my $initrd = shift @$modules;
- if (defined $kbin) {
+ if (defined $kbin && $kbin ne '/dev/null') {
die "No '--uboot-addr kernel' given" unless $uboot_addr{kernel};
$exp->send("tftpboot $uboot_addr{kernel} $prefix$kbin\n");
$exp->expect(15,
print STDERR "novaboot: Serial line interaction (press $interrupt to interrupt)...\n";
$exp->log_stdout(1);
if (@exiton) {
- $exp->expect($exiton_timeout, @expect_raw, @exiton) || die("exiton: " . ($! || "timeout"));
+ $exp->expect($exiton_timeout, @exiton, @expect_raw) || die("exiton: " . ($! || "timeout"));
} else {
my @inputs = ($exp);
my $infile = new IO::File;
Configuration file syntax is described in section L</"CONFIGURATION
FILES">.
+Novaboot newcomers may be confused by a large number of configuration
+options. Understanding all these options is not always needed,
+depending on the used setup. The L<figure from the doc directory
+|https://github.com/wentasah/novaboot/blob/master/doc/typical-setups.svg>
+shows different setups that vary in how much effort is needed
+configure novaboot for them. The setups are:
+
+=over 3
+
+=item A: Laptop and target device only
+
+This requires to configure everything on the laptop side, including a
+serial line connection (L</--serial>, L</--remote-cmd>, ...), power
+on/off/reset commands (L</--reset-cmd>, ...), TFTP server
+(L</--server>, L</--prefix>...), device IP addresses, etc.
+
+=item B: Laptop, target device and external TFTP server
+
+Like the previous setup, but the TFTP (and maybe DHCP) configuration
+is handled by a server. Novaboot users need to understand where to
+copy their files to the TFTP server (L</--server>) and which IP
+addresses their target will get, but do not need to configure the
+servers themselves.
+
+=item C: Novaboot server running novaboot-shell
+
+With this setup, the configuration is done on the server. Users only
+need to know the SSH account (L</--ssh>) used to communicate between
+novaboot and novaboot server. The server is implemented as a
+restricted shell (L<novaboot-shell(1)>) on the server. No need to give
+full shell access to novaboot users on the server.
+
+=back
+
=head2 Simple examples of using C<novaboot>:
To boot Linux (files F<bzImage> and F<rootfs.cpio> in current
=back
-=head1 PHASES AND OPTIONS
+=head1 OPTIONS AND PHASES
Novaboot performs its work in several phases. Command line options
described bellow influence the execution of each phase or allow their
=item --netif=I<network interface>
-Network interface used to deploy files to the target. The default value is
-I<eth0>. This option influences the configuration of the DHCP server started
-by B<--dhcp-tftp> and the value that B<$NB_MYIP> get replaced with during
-U-Boot conversation.
+Network interface used to deploy files to the target. This option
+influences the configuration of the DHCP server started by
+B<--dhcp-tftp> and the value that B<$NB_MYIP> get replaced with during
+U-Boot conversation. The default value is C<$netif> variable from
+configuration files, which defaults to I<eth0>.
=item --iso[=filename]
(see B<--build-dir>) of the module to load and the remaining words are
passed to it as the command line parameters.
+When booting Linux, the first C<load> line usually refers to the
+kernel image and its command line parameters (unless you use some
+special pre-loader). Other C<load> lines may refer to an initramfs
+image and/or a device tree blob. Their order is not important, as the
+device tree is recognized as the file name ending with C<.dtb>.
+
When the C<load> line ends with "<<WORD" then the subsequent lines
until the line containing solely WORD are copied literally to the file
-named on that line. This is similar to shell's heredoc feature.
+named on that line. This is similar to the heredoc feature of UNIX
+shells.
When the C<load> line ends with "< CMD" then command CMD is executed
with F</bin/sh> and its standard output is stored in the file named on
specified with the B<--target> command line option or
B<NOVABOOT_TARGET> environment variable.
+=item $netif
+
+Default value for the B<--netif> option. If not specified, it defaults
+to I<eth0>.
+
=item %targets
Hash of target definitions to be used with the B<--target> option. The
projects / novaboot.git / blobdiff