diff --git a/kernel.spec b/kernel.spec
index 09ae490..648057b 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -27,22 +27,33 @@
 %if "%{?KERNEL_TARGET}" == ""
 %ifarch x86_64
    %define     KERNEL_TARGET mamba-x86_64
-   %define     localver_append -x86_64
 %endif
 %ifarch %{ix86}
-   %define     KERNEL_TARGET mamba-64GB
-   %define     localver_append -64GB
+   %define     KERNEL_TARGET mamba
 %endif
 %ifarch arm
    %define     KERNEL_TARGET mamba-arm
-   %define     localver_append -arm
 %endif
 %ifarch aarch64
    %define     KERNEL_TARGET mamba-aarch64
-   %define     localver_append -aarch64
 %endif
 %endif
 
+%ifarch x86_64
+   %define     localver_append -x86_64
+%endif
+%ifarch %{ix86}
+%if "%{?KERNEL_TARGET}" != "mamba"
+   %define     localver_append -64GB
+%endif
+%endif
+%ifarch arm
+   %define     localver_append -arm
+%endif
+%ifarch aarch64
+   %define     localver_append -aarch64
+%endif
+
 # define short kernel target name for Lilo
 %define     KERNEL_TARGET_SHORT %{KERNEL_TARGET}
 
@@ -88,7 +99,7 @@
 %define _use_internal_dependency_generator 1
 
 Name:          kernel
-Version:       5.10.46
+Version:       5.10.57
 Release:       1mamba
 Summary:       The Linux Kernel, the operating system core itself
 Group:         System/Kernel and Hardware
@@ -109,7 +120,6 @@ URL:           https://www.kernel.org/
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libelf-devel
 BuildRequires: libopenssl-devel
 BuildRequires: libperl
 BuildRequires: libyaml-devel
@@ -268,7 +278,6 @@ cp $kernel_cfg ./.config
 echo "%{KERNEL_LOCALVER}" > localversion.20-pkgname
 
 %build
-#:<< ___EOF
 #
 # build kernel for given target
 #
@@ -481,13 +490,13 @@ done
 if [ $1 -ge 1 ]; then
    touch %{_prefix}/src/linux-%{kernel_ver}%{?KERNEL_LOCALVER}/include/config/MARKER
    [ -x /usr/sbin/dkms ] && dkms autoinstall -q --kernelver %{kernel_ver}%{?KERNEL_LOCALVER} || true
-   ln -snf %{_prefix}/src/linux-%{kernel_ver}%{?KERNEL_LOCALVER} %{_prefix}/src/linux%{?localver_append}
+   ln -snf %{_prefix}/src/linux-%{kernel_ver}%{?KERNEL_LOCALVER} %{_prefix}/src/linux-mamba%{?localver_append}
 fi
 :
 
 %post %{KERNEL_TARGET}-headers-sanitised
 if [ $1 -ge 1 ]; then
-   ln -snf %{_prefix}/src/linux-%{kernel_ver}%{?KERNEL_LOCALVER} %{_prefix}/src/linux%{?localver_append}
+   ln -snf %{_prefix}/src/linux-%{kernel_ver}%{?KERNEL_LOCALVER} %{_prefix}/src/linux-mamba%{?localver_append}
 fi
 :
 
@@ -581,6 +590,15 @@ fi
 /lib/modules/%{kernel_ver}%{?KERNEL_LOCALVER}/build
 
 %changelog
+* Mon Aug 09 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.10.57-1mamba
+- update to 5.10.57
+
+* Sun Aug 08 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.10.56-2mamba
+- fix for appended local version
+
+* Sat Aug 07 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.10.56-1mamba
+- update to 5.10.56
+
 * Thu Jun 24 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.10.46-1mamba
 - update to 5.10.46