gBootRoot pronounced "bOOtrOOt"
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#!/usr/bin/perl
use BootRoot::UML;
use File::Basename;
if ( !$ARGV[0] ) {
die "expect_uml ubd0 ubd1 other-options mount-point preserve_ownership filesystem_command\n";
}
my $arguments = "$ARGV[0] $ARGV[1] $ARGV[2]";
my $mount_point = "$ARGV[3]";
my $preserve_ownership = "$ARGV[4]";
my $end = 6;
my $filesystem;
for ( 5 .. $#ARGV ) {
if ( $_ == 5 ) {
$filesystem = "$ARGV[5]";
# What to do with the rieserfs command
if ( $filesystem eq "mkreiserfs" ) {
$filesystem = $filesystem . " -f -f -q";
}
}
else {
if ( $ARGV[$end] ) {
$filesystem = $filesystem . " $ARGV[$end]";
$end++;
}
else {
last;
}
}
}
my $uml =
BootRoot::UML->new( login_prompt => "bootroot login: ",
arguments => $arguments,
login => "root",
password_prompt => "Password: ",
password => "",
prompt => "bootroot:.*# ",
halt => "shutdown -h now"
);
$uml->boot();
# Make the GID/UID 0 FS
if ( $filesystem =~ /^mkcramfs/ ) {
$uml->command("mke2fs -m0 /dev/ubd/1");
}
else {
$uml->command("$filesystem /dev/ubd/1");
}
$uml->command("mount /dev/ubd/1 /mnt1");
$uml->command("mount -t hostfs none -o $mount_point /mnt2");
$uml->command("cp -a /mnt2/* /mnt1");
if ( $preserve_ownership == 0 ) {
$uml->command("chown -R 0:0 /mnt1");
}
if ( $filesystem =~ /^mkcramfs/ ) {
my $cram_dir = dirname($mount_point);
my $root_fs_name = basename($ARGV[1]);
my $cramfs_name = "$root_fs_name" . "_cramfs";
$uml->command("umount /mnt2");
$uml->command("mount -t hostfs none -o $cram_dir /mnt2");
$uml->command("mkcramfs /mnt1 /mnt2/$cramfs_name");
}
$uml->command("umount /mnt1; umount /mnt2");
$uml->halt();