fix(initramfs): fix bare metal install (#245)

src/initramfs/cmd/init/main.go

@@ -6,6 +6,7 @@ import "C"
 
 import (
 	"flag"
+	"fmt"
 	"log"
 	"os"
 
@@ -103,7 +104,7 @@ func initram() error {
 func root() error {
 	// Setup logging to /dev/kmsg.
 	if _, err := kmsg("[talos]"); err != nil {
-		return err
+		return fmt.Errorf("failed to setup logging to /dev/kmsg: %v", err)
 	}
 	// Read the user data.
 	log.Printf("reading the user data: %s\n", constants.UserDataPath)

src/initramfs/cmd/init/pkg/mount/mount.go

@@ -152,7 +152,7 @@ func Mount(s string) error {
 
 // Unmount unmounts the ROOT and DATA block devices.
 func Unmount() error {
-	for _, disk := range []string{constants.RootPartitionLabel, constants.DataPartitionLabel} {
+	for _, disk := range []string{constants.BootPartitionLabel, constants.RootPartitionLabel, constants.DataPartitionLabel} {
 		mountpoint, ok := instance.blockdevices[disk]
 		if ok {
 			if err := unix.Unmount(mountpoint.target, 0); err != nil {
@@ -260,6 +260,8 @@ func mountBlockDevices(blockdevices []*BlockDevice, s string) (err error) {
 			mountpoint.target = s
 		case constants.DataPartitionLabel:
 			mountpoint.target = path.Join(s, "var")
+		case constants.BootPartitionLabel:
+			mountpoint.target = path.Join(s, "boot")
 		default:
 			continue
 		}
@@ -287,7 +289,7 @@ func mountBlockDevices(blockdevices []*BlockDevice, s string) (err error) {
 func probe() (b []*BlockDevice, err error) {
 	b = []*BlockDevice{}
 
-	for _, disk := range []string{constants.RootPartitionLabel, constants.DataPartitionLabel} {
+	for _, disk := range []string{constants.RootPartitionLabel, constants.DataPartitionLabel, constants.BootPartitionLabel} {
 		if err := appendBlockDeviceWithLabel(&b, disk); err != nil {
 			return nil, err
 		}

src/initramfs/cmd/init/pkg/platform/baremetal/baremetal.go

@@ -509,6 +509,12 @@ func untar(tarball *os.File, dst string) error {
 			if err != nil {
 				return err
 			}
+		case tar.TypeSymlink:
+			dest := filepath.Join(dst, header.Name)
+			source := header.Linkname
+			if err := os.Symlink(source, dest); err != nil {
+				return err
+			}
 		}
 	}
 }