diff --git a/files/default_grub.patch.deb13 b/files/default_grub.patch.deb13
new file mode 100644
index 0000000..b30b9aa
--- /dev/null
+++ b/files/default_grub.patch.deb13
@@ -0,0 +1,22 @@
+--- grub.orig   2025-11-16 12:48:00.039601015 +0100
++++ grub        2025-11-16 18:27:55.973258293 +0100
+@@ -6,8 +6,8 @@
+ GRUB_DEFAULT=0
+ GRUB_TIMEOUT=5
+ GRUB_DISTRIBUTOR=`( . /etc/os-release && echo ${NAME} )`
+-GRUB_CMDLINE_LINUX_DEFAULT="quiet"
+-GRUB_CMDLINE_LINUX=""
++GRUB_CMDLINE_LINUX_DEFAULT=""
++GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
+ 
+ # If your computer has multiple operating systems installed, then you
+ # probably want to run os-prober. However, if your computer is a host
+@@ -22,7 +22,7 @@
+ #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
+ 
+ # Uncomment to disable graphical terminal
+-#GRUB_TERMINAL=console
++GRUB_TERMINAL=console
+ 
+ # The resolution used on graphical terminal
+ # note that you can use only modes which your graphic card supports via VBE/GOP/UGA
diff --git a/files/postfix_master.cf.patch.deb13 b/files/postfix_master.cf.patch.deb13
new file mode 100644
index 0000000..dcdccc3
--- /dev/null
+++ b/files/postfix_master.cf.patch.deb13
@@ -0,0 +1,66 @@
+--- master.cf.orig      2025-11-16 18:19:18.068768059 +0100
++++ master.cf   2025-11-16 18:34:50.377973410 +0100
+@@ -9,7 +9,8 @@
+ # service type  private unpriv  chroot  wakeup  maxproc command + args
+ #               (yes)   (yes)   (no)    (never) (100)
+ # ==========================================================================
+-smtp      inet  n       -       y       -       -       smtpd
++#smtp      inet  n       -       y       -       -       smtpd
++localhost:smtp inet n   -       y       -       -       smtpd
+ #smtp      inet  n       -       y       -       1       postscreen
+ #smtpd     pass  -       -       y       -       -       smtpd
+ #dnsblog   unix  -       -       y       -       0       dnsblog
+@@ -99,53 +100,3 @@
+ #maildrop  unix  -       n       n       -       -       pipe
+ #  flags=DRXhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
+ #
+-# ====================================================================
+-#
+-# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
+-#
+-# Specify in cyrus.conf:
+-#   lmtp    cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
+-#
+-# Specify in main.cf one or more of the following:
+-#  mailbox_transport = lmtp:inet:localhost
+-#  virtual_transport = lmtp:inet:localhost
+-#
+-# ====================================================================
+-#
+-# Cyrus 2.1.5 (Amos Gouaux)
+-# Also specify in main.cf: cyrus_destination_recipient_limit=1
+-#
+-#cyrus     unix  -       n       n       -       -       pipe
+-#  flags=DRX user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
+-#
+-# ====================================================================
+-#
+-# Old example of delivery via Cyrus.
+-#
+-#old-cyrus unix  -       n       n       -       -       pipe
+-#  flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
+-#
+-# ====================================================================
+-#
+-# See the Postfix UUCP_README file for configuration details.
+-#
+-#uucp      unix  -       n       n       -       -       pipe
+-#  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
+-#
+-# ====================================================================
+-#
+-# Other external delivery methods.
+-#
+-#ifmail    unix  -       n       n       -       -       pipe
+-#  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
+-#
+-#bsmtp     unix  -       n       n       -       -       pipe
+-#  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -f $sender $nexthop $recipient
+-#
+-#scalemail-backend unix -       n       n       -       2       pipe
+-#  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
+-#  ${nexthop} ${user} ${extension}
+-#
+-#mailman   unix  -       n       n       -       -       pipe
+-#  flags=FRX user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
+-#  ${nexthop} ${user}
diff --git a/tasks/debian.yml b/tasks/debian.yml
index c54012d..1c0112a 100644
--- a/tasks/debian.yml
+++ b/tasks/debian.yml
@@ -306,13 +306,21 @@
   when:
     - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 9 and ansible_distribution_major_version|int() < 12)
 
-- name: grub defaults, debian12-99
+- name: grub defaults, debian12
   tags: grub
   patch:
     src: default_grub.patch.bookworm
     dest: /etc/default/grub
   when:
-    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 12)
+    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() == 12)
+
+- name: grub defaults, debian13-99
+  tags: grub
+  patch:
+    src: default_grub.patch.deb13
+    dest: /etc/default/grub
+  when:
+    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 13)
 
 - name: grub defaults, ubuntu20-99
   tags: grub
diff --git a/tasks/main.yml b/tasks/main.yml
index 21282ac..39edaa7 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,13 +1,24 @@
 ---
+# from Debian 13 /tmp is tmpfs
 - name: /tmp bind mount in fstab
   lineinfile:
     dest: /etc/fstab
     line: '/var/tmp        /tmp            none    bind    0       0'
   register: fstab_tmp
+  when:
+    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() <= 12) or
+      ansible_distribution == "Ubuntu" or
+      ansible_distribution == "RedHat" or
+      ansible_distribution == "AlmaLinux"
 
 - name: mount /tmp
   shell: 'mv /tmp/ /old-tmp; mkdir /tmp; mount /tmp; mv /old-tmp /tmp'
-  when: fstab_tmp.changed
+  when:
+    - ((ansible_distribution == "Debian" and ansible_distribution_major_version|int() <= 12) or
+      ansible_distribution == "Ubuntu" or
+      ansible_distribution == "RedHat" or
+      ansible_distribution == "AlmaLinux")
+      and fstab_tmp.changed
 
 ##############################################################################
 # debian-ubuntu /redhat
@@ -133,13 +144,21 @@
     - (ansible_distribution_major_version|int() == 9) or
       (ansible_distribution_major_version|int() == 10)
 
-- name: postfix master.cf debian11-99
+- name: postfix master.cf debian11-12
   tags: postfix
   patch:
     src: postfix_master.cf.patch.bullseye
     dest: /etc/postfix/master.cf
   when:
-    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 11)
+    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 11 and ansible_distribution_major_version|int() <= 12)
+
+- name: postfix master.cf debian13-99
+  tags: postfix
+  patch:
+    src: postfix_master.cf.patch.deb13
+    dest: /etc/postfix/master.cf
+  when:
+    - (ansible_distribution == "Debian" and ansible_distribution_major_version|int() >= 13)
 
 - name: postfix master.cf ubuntu20
   tags: postfix