diff --git a/pym/install/distr.py b/pym/install/distr.py
index f45e172..76cbc03 100644
--- a/pym/install/distr.py
+++ b/pym/install/distr.py
@@ -907,6 +907,10 @@ class FormatExt4(FormatExt2):
     format_util = "/sbin/mkfs.ext4"
 
 
+class FormatExfat(FormatProcessGeneric):
+    format_util = "/sbin/mkfs.exfat"
+
+
 class FormatJfs(FormatProcessGeneric):
     format_util = "/sbin/mkfs.jfs"
 
@@ -1000,6 +1004,7 @@ class PartitionDistributive(Distributive):
         'ext2': FormatExt2,
         'ext3': FormatExt3,
         'ext4': FormatExt4,
+        'exfat': FormatExfat,
         'jfs': FormatJfs,
         'f2fs': FormatF2FS,
         'reiserfs': FormatReiserfs,
diff --git a/pym/install/install.py b/pym/install/install.py
index 8ba5fa9..ebd2094 100644
--- a/pym/install/install.py
+++ b/pym/install/install.py
@@ -226,14 +226,17 @@ class Install(MethodsInterface):
             raise DistributiveError(
                 _("Failed to write the master boot record\n%s") %
                 dd_process.read())
-        target.close()
-        # выполнить установку syslinux загрузчика
         install_root_dev = self.clVars.Get('os_install_root_dev')
-        syslinux_process = process("/usr/bin/syslinux",
-                                   install_root_dev, stderr=STDOUT)
+        mount_path = target.convertToDirectory()
+        syslinux_process = process("/usr/bin/extlinux", '--install',
+                                   mount_path.directory, stderr=STDOUT)
         if syslinux_process.failed():
             raise DistributiveError(_("Failed to install syslinux\n%s") %
                                     syslinux_process.read())
+        target.close()
+        # выполнить установку syslinux загрузчика
+
+
         # установить загрузочный раздел активным
         return self.setActivePartition(self.clVars.Get('os_install_root_dev'))
 
diff --git a/pym/install/variables/disk.py b/pym/install/variables/disk.py
index 7f5429b..4368743 100644
--- a/pym/install/variables/disk.py
+++ b/pym/install/variables/disk.py
@@ -2522,6 +2522,7 @@ class VariableOsInstallFormatSingleSet(Variable):
     opt = ["--format"]
     untrusted = True
     value = "off"
+    check_after = ["cl_target_fs"]
 
     def init(self):
         self.label = _("Format the USB Flash")
@@ -2529,7 +2530,8 @@ class VariableOsInstallFormatSingleSet(Variable):
 
     def must_be_formatted(self, dev):
         fs = self.select('os_disk_format', os_disk_dev=dev, limit=1)
-        if fs != "vfat":
+        new_fs = self.Get('cl_target_fs')
+        if fs != new_fs:
             return True
         return False
 
@@ -2549,8 +2551,8 @@ class VariableOsInstallFormatSingleSet(Variable):
                       "contains the current system"))
         else:
             if self.must_be_formatted(dev):
-                raise VariableError(
-                    _("{device} must be formatted").format(device=dev))
+                self.value = 'on'
+                value = 'on'
             if dev:
                 try:
                     with FlashDistributive(dev) as f:
diff --git a/pym/install/variables/distr.py b/pym/install/variables/distr.py
index fee129d..3ccb4f0 100644
--- a/pym/install/variables/distr.py
+++ b/pym/install/variables/distr.py
@@ -25,6 +25,7 @@ from calculate.lib.datavars import (Variable, VariableError, ReadonlyVariable,
 from calculate.lib.utils.common import (getSupportArch, getTupleVersion,
                                         cmpVersion, cmp)
 from calculate.lib.utils.files import listDirectory, pathJoin
+from calculate.lib.utils.grub import GrubCommand
 from calculate.lib.variables.linux import Linux
 from ..distr import (Distributive, PartitionDistributive,
                                      DirectoryDistributive, DefaultMountPath,
@@ -522,6 +523,7 @@ class VariableClTarget(ReadonlyVariable):
     Target distributive
     """
     type = "object"
+    filesystem = "cl_target_fs"
 
     def get(self):
         listVars = ['os_install_disk_dev', 'os_install_disk_mount',
@@ -535,9 +537,10 @@ class VariableClTarget(ReadonlyVariable):
             flashLabel = "{short}-{build}".format(
                 short="CL", build=self.Get('os_install_linux_build'))
             disk = self.Get('os_install_disk_single')
-            fileSystem = "vfat"
+            fileSystem = self.Get(self.filesystem) or 'ntfs'
+            #fileSystem = "vfat"
             systemId = FileSystemManager.supportFS.get(
-                'vfat', {}).get('msdos', '0b')
+                fileSystem, {}).get('msdos', '0b')
             isFormat = self.GetBool('os_install_format_single_set')
             partTable = self.select('os_disk_part',
                                     os_disk_dev=disk, limit=1)
@@ -598,6 +601,26 @@ class VariableClTarget(ReadonlyVariable):
         return target
 
 
+class VariableClTargetFs(Variable):
+    type = 'choice'
+    opt = ['--fs']
+    disk = 'os_install_disk_single'
+    value = 'auto'
+
+    def init(self):
+        self.label = _("File system on flash device")
+        self.help = _("Create new FS on flash device(formating req)")
+
+    def get(self):
+        if self.value != 'auto':
+            return self.value
+        return 'ntfs'
+
+    def choice(self):
+        return ['vfat', 'btrfs', 'ntfs', 'ext4',
+                'ext3', 'ext2', 'xfs']
+
+
 class VariableClImageNewOnly(Variable):
     """
     Distributive image filename
diff --git a/pym/install/wsdl_install.py b/pym/install/wsdl_install.py
index 5d93250..f6ba6f8 100644
--- a/pym/install/wsdl_install.py
+++ b/pym/install/wsdl_install.py
@@ -173,7 +173,8 @@ class Wsdl(WsdlBase):
                 lambda group: group(_("Flash install"),
                                     normal=('cl_image_filename',
                                             'os_install_disk_single',
-                                            'os_install_format_single_set'),
+                                            'os_install_format_single_set',
+                                            'cl_target_fs'),
                                     next_label=_("Run"))],
             'brief': {'next': __("Run"),
                       'name': __("Start installing")}},