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zfsbootmenu
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Use dracut to generate unifiedEFI images 

This enables the user to add more configuration options in
/etc/zfsbootmenu/dracut.conf.d, such as the location of Secure Boot keys
to sign the unifiedEFI image.
This commit is contained in:
Érico Rolim 2020-05-16 17:11:31 -03:00
parent fee1c0d87e
commit 4b4688610a
1 changed files with 13 additions and 22 deletions
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35
bin/generate-zbm
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@ -116,14 +116,16 @@ if ( ( defined $runConf{kernel} ) and ( length $runConf{kernel} ) ) {
$runConf{bootdir} = dirname( $runConf{kernel} );
( $runConf{kernel_prefix}, $runConf{kernel_version} ) = split( '-', basename( $runConf{kernel} ) );
# We always need to create an initramfs
printf "Creating ZFS Boot Menu %s, with %s %s\n", $runConf{version}, $runConf{kernel_prefix}, $runConf{kernel_version};
# We need to create an initramfs for all cases other than unifiedEFI
if ( defined( $config{Components}{Copies} ) and ( $config{Components}{Copies} gt 0 ) ) {
printf "Creating ZFS Boot Menu %s, with %s %s\n", $runConf{version}, $runConf{kernel_prefix}, $runConf{kernel_version};
$runConf{initramfs} = createInitramfs( $tempdir, $runConf{kernel_version} );
$runConf{initramfs} = createInitramfs( $tempdir, $runConf{kernel_version} );
}
# Create a unified kernel/initramfs/command line EFI file
if ( defined( $config{EFI}{Copies} ) and ( $config{EFI}{Copies} gt 0 ) ) {
$runConf{unified_efi} = unifiedEFI( $tempdir, $runConf{kernel}, $runConf{initramfs} );
$runConf{unified_efi} = unifiedEFI( $tempdir, $runConf{kernel_version} );
if ( defined( $config{EFI}{Versioned} ) and ( $config{EFI}{Versioned} ) ) {
$runConf{efi_target} =
@ -304,33 +306,22 @@ sub createInitramfs {
}
sub unifiedEFI {
my ( $temp, $kernel, $initramfs ) = @_;
my ( $temp, $kver ) = @_;
my $output_file = join( '/', $temp, "zfsbootmenu.efi" );
my $cmdline_file = join( '/', $temp, "cmdline.txt" );
my $cmdline = $config{Kernel}{CommandLine};
my $efi_stub = $config{EFI}{Stub} || "/usr/lib/gummiboot/linuxx64.efi.stub";
unless ( -e $efi_stub) {
die "Missing EFI stub: $efi_stub";
}
open( my $fh, '>', $cmdline_file );
print $fh $cmdline;
close($fh);
my @cmd = (
qw(objcopy),
qw(--add-section .osrel=/etc/os-release --change-section-vma .osrel=0x20000),
qq(--add-section .cmdline=$cmdline_file),
qw(--change-section-vma .cmdline=0x30000),
qq(--add-section .linux=$kernel),
qw(--change-section-vma .linux=0x40000),
qq(--add-section .initrd=$initramfs),
qw(--change-section-vma .initrd=0x3000000),
$efi_stub,
$output_file
qw(dracut -q -f --uefi --confdir),
$runConf{confd},
qq(--uefi-stub), $efi_stub,
qq(--kernel-cmdline=\"$config{Kernel}{CommandLine}\"),
$output_file,
qw(--kver), $kver,
);
my @output = execute(@cmd);