diff --git a/systemd-251.2-add-stdbool-include-1.patch b/systemd-251.2-add-stdbool-include-1.patch
new file mode 100644
index 0000000..a0164bb
--- /dev/null
+++ b/systemd-251.2-add-stdbool-include-1.patch
@@ -0,0 +1,10 @@
+--- systemd-stable-251.2/src/fundamental/sha256.c.orig	2022-06-13 15:52:57.119352352 +0200
++++ systemd-stable-251.2/src/fundamental/sha256.c	2022-06-13 15:53:09.522271808 +0200
+@@ -29,6 +29,7 @@
+ 
+ #include "macro-fundamental.h"
+ #include "sha256.h"
++#include <stdbool.h>
+ 
+ #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ # define SWAP(n)                                                        \
diff --git a/systemd.spec b/systemd.spec
index ad02276..f555dc2 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -26,8 +26,8 @@
 
 Name:          systemd
 Epoch:         2
-Version:       251.1
-Release:       1mamba
+Version:       251.2
+Release:       2mamba
 Summary:       A system and service manager compatible with SysV and LSB init scripts
 Group:         System/Configuration
 Vendor:        openmamba
@@ -69,7 +69,8 @@ Patch18:       systemd-238-upstream-dont-include-libmount-h.patch
 Patch19:       systemd-239-glibc-2.28.patch
 Patch20:       systemd-240-upstream_fix_return_values.patch
 Patch21:       systemd-247-upstream-fixes-1.patch
-Patch22:        systemd-251-fix-format-string-type-mismatch.patch
+Patch22:       systemd-251-fix-format-string-type-mismatch.patch
+Patch23:       systemd-251.2-add-stdbool-include-1.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -204,6 +205,9 @@ This package include development files for building software using udev librarie
 #:<< _EOF
 #%patch21 -p1
 %patch22 -p1 -b .fix-format-string-type-mismatch
+%ifarch %{ix86}
+%patch23 -p1
+%endif
 
 #sed -i "s|@bindir@|/bin|g" src/core/macros.systemd.in
 
@@ -241,7 +245,13 @@ export LC_ALL="en_US.UTF-8"
    -Drpmmacrosdir=%{_sysconfdir}/rpm \
    -Dsupport-url="https://openmamba.org" \
    -Dntp-servers="0.europe.pool.ntp.org 1.europe.pool.ntp.org 2.europe.pool.ntp.org 3.europe.pool.ntp.org" \
-   -Ddefault-hierarchy=hybrid \
+   -Ddefault-hierarchy=unified \
+   -Dfallback-hostname="openmamba" \
+   -Dsbat-distro="openmamba" \
+   -Dsbat-distro-summary="openmamba Linux" \
+   -Dsbat-distro-pkgname="%{name}" \
+   -Dsbat-distro-version="%{version}" \
+   -Dsbat-distro-url="https://openmamba.org/it/pacchetti/?tag=devel&pkg=systemd.source" \
 %ifarch arm
    -Dtests=false
 %endif
@@ -475,28 +485,23 @@ if [ $1 -ge 1 ]; then
    systemctl --no-reload preset systemd-timesyncd
    # remove broken left sysv5 symlink due to migrating services to systemd
    find /etc/rc*.d/* -xtype l -delete 2>/dev/null
-   systemctl -q daemon-reload
-   KVER=`uname -r`
-   INITRAMFS=/boot/initramfs-$KVER.img
-   KERNEL=/boot/vmlinuz-$KVER
-   [ -e $INITRAMFS -a ${_sysconfdir}/systemd/system.conf -nt $INITRAMFS ] || continue
-   [ -e $KERNEL -a -e /usr/bin/mkinitrd ] || continue
-   mkinitrd $INITRAMFS $KVER -f -q
    # fix initial console fonts with lighter one and working FONT_MAP (219)
    grep -q "^FONT_MAP=8859-1_to_uni" /etc/vconsole.conf && {
       sed -i "s|^FONT_MAP=8859-1_to_uni|FONT_MAP=latin2u|" /etc/vconsole.conf
       sed -i "s|^FONT=lat9w-16|FONT=LatGrkCyr-8x16|" /etc/vconsole.conf
    }
+   systemctl -q daemon-reload
+   KVER=`uname -r`
+   INITRAMFS=/boot/initramfs-$KVER.img
+   KERNEL=/boot/vmlinuz-$KVER
+   [ -e $INITRAMFS -a /etc/systemd/system.conf -nt $INITRAMFS ] || continue
+   [ -e $KERNEL -a -e /usr/bin/mkinitrd ] || continue
+   mkinitrd $INITRAMFS $KVER -f -q
 fi
 :
 
-%post -n libsystemd
-/sbin/ldconfig
-:
-
-%postun -n libsystemd
-/sbin/ldconfig
-:
+%post -n libsystemd -p /sbin/ldconfig
+%postun -n libsystemd -p /sbin/ldconfig
 
 %pre -n udev
 # backup persistent-net rules file if it has an old syntax
@@ -535,13 +540,8 @@ groupadd render -g %{group_render} 2>/dev/null
 [ -e /lib/udev ] || ln -s ../usr/lib/udev /lib/udev
 :
 
-%post -n libudev
-/sbin/ldconfig
-:
-
-%postun -n libudev
-/sbin/ldconfig
-:
+%post -n libudev -p /sbin/ldconfig
+%postun -n libudev -p /sbin/ldconfig
 
 %posttrans -n udev
 [ ! -L /lib -a ! -L /lib/udev ] && {
@@ -822,6 +822,12 @@ systemctl daemon-reload &>/dev/null || :
 %{_libdir}/pkgconfig/libudev.pc
 
 %changelog
+* Thu Jun 09 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 251.2-2mamba
+- set default-hierarchy=unified; add fallback-hostname and sbat-distro info
+
+* Sat Jun 04 2022 Automatic Build System <autodist@mambasoft.it> 251.2-1mamba
+- automatic version update by autodist
+
 * Wed May 25 2022 Automatic Build System <autodist@mambasoft.it> 251.1-1mamba
 - automatic version update by autodist