diff --git a/models/access.go b/models/access.go
index 84cad17a3..42fccae05 100644
--- a/models/access.go
+++ b/models/access.go
@@ -26,6 +26,8 @@ type Access struct {
 
 // AddAccess adds new access record.
 func AddAccess(access *Access) error {
+	access.UserName = strings.ToLower(access.UserName)
+	access.RepoName = strings.ToLower(access.RepoName)
 	_, err := orm.Insert(access)
 	return err
 }
diff --git a/models/models.go b/models/models.go
index be176b5d3..a626b98f6 100644
--- a/models/models.go
+++ b/models/models.go
@@ -12,6 +12,7 @@ import (
 	_ "github.com/go-sql-driver/mysql"
 	_ "github.com/lib/pq"
 	"github.com/lunny/xorm"
+	// _ "github.com/mattn/go-sqlite3"
 
 	"github.com/gogits/gogs/modules/base"
 )
@@ -23,10 +24,15 @@ var (
 	DbCfg struct {
 		Type, Host, Name, User, Pwd, Path, SslMode string
 	}
+
+	UseSQLite3 bool
 )
 
 func LoadModelsConfig() {
 	DbCfg.Type = base.Cfg.MustValue("database", "DB_TYPE")
+	if DbCfg.Type == "sqlite3" {
+		UseSQLite3 = true
+	}
 	DbCfg.Host = base.Cfg.MustValue("database", "HOST")
 	DbCfg.Name = base.Cfg.MustValue("database", "NAME")
 	DbCfg.User = base.Cfg.MustValue("database", "USER")
diff --git a/models/repo.go b/models/repo.go
index 5ca98dec0..0c808f184 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -157,7 +157,7 @@ func CreateRepository(user *User, repoName, desc, repoLang, license string, priv
 	}
 
 	access := Access{
-		UserName: user.Name,
+		UserName: user.LowerName,
 		RepoName: strings.ToLower(path.Join(user.Name, repo.Name)),
 		Mode:     AU_WRITABLE,
 	}
diff --git a/models/user.go b/models/user.go
index a392fa76b..4908552f2 100644
--- a/models/user.go
+++ b/models/user.go
@@ -39,6 +39,7 @@ var (
 	ErrUserNotExist     = errors.New("User does not exist")
 	ErrEmailAlreadyUsed = errors.New("E-mail already used")
 	ErrUserNameIllegal  = errors.New("User name contains illegal characters")
+	ErrKeyNotExist      = errors.New("Public key does not exist")
 )
 
 // User represents the object of individual and member of organization.
diff --git a/modules/base/conf.go b/modules/base/conf.go
index 0233d0033..3ebc4ede1 100644
--- a/modules/base/conf.go
+++ b/modules/base/conf.go
@@ -212,9 +212,9 @@ func newMailService() {
 	if Cfg.MustBool("mailer", "ENABLED") {
 		MailService = &Mailer{
 			Name:   Cfg.MustValue("mailer", "NAME", AppName),
-			Host:   Cfg.MustValue("mailer", "HOST", "127.0.0.1:25"),
-			User:   Cfg.MustValue("mailer", "USER", "example@example.com"),
-			Passwd: Cfg.MustValue("mailer", "PASSWD", "******"),
+			Host:   Cfg.MustValue("mailer", "HOST"),
+			User:   Cfg.MustValue("mailer", "USER"),
+			Passwd: Cfg.MustValue("mailer", "PASSWD"),
 		}
 		log.Info("Mail Service Enabled")
 	}
diff --git a/routers/install.go b/routers/install.go
index 2c993c559..e30c3cfd2 100644
--- a/routers/install.go
+++ b/routers/install.go
@@ -185,6 +185,7 @@ func Install(ctx *middleware.Context, form auth.InstallForm) {
 			ctx.RenderWithErr("Admin account setting is invalid: "+err.Error(), "install", &form)
 			return
 		}
+		log.Info("Admin account already exist")
 	}
 
 	log.Info("First-time run install finished!")
diff --git a/serve.go b/serve.go
index dcbddfe4a..96cd7e73d 100644
--- a/serve.go
+++ b/serve.go
@@ -74,29 +74,33 @@ func In(b string, sl map[string]int) bool {
 func runServ(k *cli.Context) {
 	execDir, _ := base.ExecDir()
 	newLogger(execDir)
-	log.Trace("new serv request " + log.Mode + ":" + log.Config)
 
 	base.NewConfigContext()
 	models.LoadModelsConfig()
+
+	if models.UseSQLite3 {
+		os.Chdir(execDir)
+	}
+
 	models.SetEngine()
 
 	keys := strings.Split(os.Args[2], "-")
 	if len(keys) != 2 {
-		fmt.Println("auth file format error")
+		println("auth file format error")
 		log.Error("auth file format error")
 		return
 	}
 
 	keyId, err := strconv.ParseInt(keys[1], 10, 64)
 	if err != nil {
-		fmt.Println("auth file format error")
+		println("auth file format error")
 		log.Error("auth file format error", err)
 		return
 	}
 	user, err := models.GetUserByKeyId(keyId)
 	if err != nil {
-		fmt.Println("You have no right to access")
-		log.Error("SSH visit error", err)
+		println("You have no right to access")
+		log.Error("SSH visit error: %v", err)
 		return
 	}
 
@@ -133,13 +137,12 @@ func runServ(k *cli.Context) {
 	// access check
 	switch {
 	case isWrite:
-		has, err := models.HasAccess(user.Name, strings.ToLower(path.Join(repoUserName, repoName)), models.AU_WRITABLE)
+		has, err := models.HasAccess(user.LowerName, path.Join(repoUserName, repoName), models.AU_WRITABLE)
 		if err != nil {
 			println("Inernel error:", err)
 			log.Error(err.Error())
 			return
-		}
-		if !has {
+		} else if !has {
 			println("You have no right to write this repository")
 			log.Error("User %s has no right to write repository %s", user.Name, repoPath)
 			return
diff --git a/update.go b/update.go
index 246c5d8f9..e36dc2232 100644
--- a/update.go
+++ b/update.go
@@ -32,6 +32,12 @@ gogs serv provide access auth for repositories`,
 func runUpdate(c *cli.Context) {
 	base.NewConfigContext()
 	models.LoadModelsConfig()
+
+	if models.UseSQLite3 {
+		execDir, _ := base.ExecDir()
+		os.Chdir(execDir)
+	}
+
 	models.SetEngine()
 
 	w, _ := os.Create("update.log")