diff --git a/install_scripts/install_cron.yaml b/install_scripts/install_cron.yaml
new file mode 100644
index 0000000..e8510c9
--- /dev/null
+++ b/install_scripts/install_cron.yaml
@@ -0,0 +1,36 @@
+---
+- name: install cron server
+  hosts: all
+  become: true
+  # Todo:
+  # systemctl enable crond
+  # systemctl start crond
+  tasks:
+    - name: remove other files
+      include_tasks: yaml_sub/myrepo_clean.yaml
+    - name: update file myrepo.repo
+      import_tasks: yaml_sub/myrepo_data.yaml
+
+    - name: install nfs tools
+      dnf:
+        name: nfs-utils,nfs-utils-coreos,nfsv4-client-utils,rpcbind,cronie,rsync
+        state: present
+        update_cache: true
+        skip_broken: true
+        nobest: false
+        allowerasing: true
+
+    - name: Make sure rpcbind service unit is started
+      systemd_service:
+        enabled: true
+        state: started
+        name: rpcbind
+
+    - name: Mount /data_1
+      ansible.posix.mount:
+        src: 10.10.1.51:/volume1/data_1
+        path: /data_1
+        opts: rw,sync,hard,nolock
+        boot: true
+        state: mounted
+        fstype: nfs
diff --git a/machines/cron b/machines/cron
new file mode 100644
index 0000000..513aac7
--- /dev/null
+++ b/machines/cron
@@ -0,0 +1 @@
+cron.neuro.uni-bremen.de ansible_user=ansibleuser ansible_ssh_common_args='-o StrictHostKeyChecking=no'
\ No newline at end of file
diff --git a/machines/fatbastard b/machines/fatbastard
new file mode 100644
index 0000000..ff070de
--- /dev/null
+++ b/machines/fatbastard
@@ -0,0 +1 @@
+fatbastard.neuro.uni-bremen.de ansible_user=ansibleuser ansible_ssh_common_args='-o StrictHostKeyChecking=no'
\ No newline at end of file
diff --git a/sge_master_nodes.txt b/sge_master_nodes.txt
new file mode 100644
index 0000000..b9a8194
--- /dev/null
+++ b/sge_master_nodes.txt
@@ -0,0 +1,58 @@
+rockylinux-9-default_20221109_amd64.tar.xz
+
+yum install mc nfs-utils nfs-utils-coreos nfsv4-client-utils rpcbind openssh openssh-server wget
+systemctl start rpcbind
+systemctl enable rpcbind
+systemctl start sshd
+systemctl enable sshd
+
+mkdir /data_1
+echo "10.10.1.51:/volume1/data_1 /data_1 nfs rw 0 0" >> /etc/fstab
+mount /data_1
+
+dnf install epel-release
+
+wget -c https://pkgs.dyn.su/el8/base/x86_64/raven-release.el8.noarch.rpm
+
+vi /etc/yum.repos.d/sge.repo
+
+[copr:copr.fedorainfracloud.org:loveshack:SGE]
+name=Copr repo for SGE owned by loveshack
+baseurl=https://download.copr.fedorainfracloud.org/results/loveshack/SGE/epel-9-$basearch/
+type=rpm-md
+skip_if_unavailable=True
+gpgcheck=1
+gpgkey=https://download.copr.fedorainfracloud.org/results/loveshack/SGE/pubkey.gpg
+repo_gpgcheck=0
+enabled=1
+enabled_metadata=1
+
+[raven]
+name=Raven's RPM repo for el8-$basearch - base
+baseurl=https://pkgs.sysadmins.ws/el8/base/$basearch/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-raven
+gpgcheck=1
+enabled=1
+
+yum install libdb4-utils
+yum install gridengine-*
+
+# copy /opt/sge to /data_1/sge
+# sge_qmaster     6444/tcp  sge-qmaster   # Grid Engine Qmaster Service
+# sge_qmaster     6444/udp  sge-qmaster   # Grid Engine Qmaster Service
+
+export SGE_ROOT=/data_1/sge
+echo $SGE_ROOT
+export SGE_CELL=neuro
+export $SGE_QMASTER_PORT=6444
+export $SGE_EXECD_PORT=6445
+export $SGE_CLUSTER_NAME=neuro
+
+. /data_1/sge/neuro/common/settings.sh
+
+\cp /data_1/sge/sge.sh /etc/profile.d/sge.sh
+\cp /data_1/sge/sgeexecd.Neuro /etc/rc.d/init.d/sgeexecd.Neuro
+systemctl daemon-reload
+systemctl stop sgeexecd.Neuro
+killall -9 /sge-root/bin/lx-amd64/sge_execd
+systemctl start sgeexecd.Neuro
\ No newline at end of file
diff --git a/yaml_sub/mount_info.yaml b/yaml_sub/mount_info.yaml
index 30a469d..63dfb04 100644
--- a/yaml_sub/mount_info.yaml
+++ b/yaml_sub/mount_info.yaml
@@ -46,14 +46,14 @@
     state: mounted
     fstype: nfs
 
-- name: Mount /0
-  ansible.posix.mount:
-    src: 10.10.1.1:/volume1/data
-    path: /0
-    opts: rw,sync,hard,nolock
-    boot: true
-    state: mounted
-    fstype: nfs
+# - name: Mount /0
+#   ansible.posix.mount:
+#     src: 10.10.1.1:/volume1/data
+#     path: /0
+#     opts: rw,sync,hard,nolock
+#     boot: true
+#     state: mounted
+#     fstype: nfs
 
 - name: Mount /sge-root
   ansible.posix.mount: