make centos/fedora consoles work by just starting bash

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

WIP - dont merge

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

cmd/control/autologin.go

@@ -6,6 +6,7 @@ import (
 	"os/exec"
 	"runtime"
 	"strings"
+	"syscall"
 
 	"github.com/codegangsta/cli"
 	"github.com/rancher/os/config"
@@ -59,12 +60,36 @@ func autologinAction(c *cli.Context) error {
 	banner = banner + "\n"
 	fmt.Printf(banner)
 
-	cmd = exec.Command("/usr/bin/login", "-f", user)
-	cmd.Stderr = os.Stderr
-	cmd.Stdout = os.Stdout
-	cmd.Stdin = os.Stdin
-	if err := cmd.Run(); err != nil {
-		log.Error(err)
+	loginBin := ""
+	args := []string{}
+	if cfg.Rancher.Console == "Acentos" || cfg.Rancher.Console == "Afedora" {
+		// For some reason, centos and fedora ttyS0 and tty1 don't work with `login -f rancher`
+		// until I make time to read their source, lets just give us a way to get work done
+		loginBin = "bash"
+		args = append(args, "--login")
+
+	} else {
+		loginBin = "login"
+		args = append(args, "-f", user)
 	}
-	return nil
+
+	loginBinPath, err := exec.LookPath(loginBin)
+	if err != nil {
+		fmt.Printf("error finding %s in path: %s", cmd.Args[0], err)
+		return err
+	}
+	os.Setenv("PS1", `[`+cfg.Rancher.Console+`: \l \u@\h \W]\$`)
+
+	return syscall.Exec(loginBinPath, args, os.Environ())
+
+	// cmd = exec.Command(loginBinPath, args...)
+	// cmd.Env = os.Environ()
+
+	// cmd.Stderr = os.Stderr
+	// cmd.Stdout = os.Stdout
+	// cmd.Stdin = os.Stdin
+	// if err := cmd.Run(); err != nil {
+	// 	log.Errorf("\nError starting %s: %s", cmd.Args[0], err)
+	// }
+	// return nil
 }