diff --git a/.ruby-version b/.ruby-version
index 872e1208191c20d425a6c44a79bf9720e3b76cde..6a81b4c83794b9140033d1df42597337f5df508c 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-ruby-3.1.0
+2.7.8
diff --git a/input/grid5000/sites/rennes/clusters/roazhon5/nodes/roazhon5-8.yaml b/input/grid5000/sites/rennes/clusters/roazhon5/nodes/roazhon5-8.yaml
deleted file mode 100644
index 54ccf05b8e76ce574f03fd7c4d51c39a41e27008..0000000000000000000000000000000000000000
--- a/input/grid5000/sites/rennes/clusters/roazhon5/nodes/roazhon5-8.yaml
+++ /dev/null
@@ -1,125 +0,0 @@
-# Generated by g5k-checks (g5k-checks -m api)
----
-roazhon5-8:
-  architecture:
-    cpu_core_numbering: round-robin
-    nb_cores: 20
-    nb_procs: 2
-    nb_threads: 40
-    platform_type: x86_64
-  bios:
-    release_date: 07/05/2022
-    vendor: Dell Inc.
-    version: 2.15.0
-  bmc_version: 2.75.75.75
-  chassis:
-    manufacturer: Dell Inc.
-    name: PowerEdge M630
-    serial: 9Y6W752
-  main_memory:
-    ram_size: 137438953472
-  memory_devices:
-    dimm_a1:
-      size: 17179869184
-      technology: dram
-    dimm_a2:
-      size: 17179869184
-      technology: dram
-    dimm_a3:
-      size: 17179869184
-      technology: dram
-    dimm_a4:
-      size: 17179869184
-      technology: dram
-    dimm_b1:
-      size: 17179869184
-      technology: dram
-    dimm_b2:
-      size: 17179869184
-      technology: dram
-    dimm_b3:
-      size: 17179869184
-      technology: dram
-    dimm_b4:
-      size: 17179869184
-      technology: dram
-  network_adapters:
-    bmc:
-      ip: 172.17.110.11
-      mac: 44:a8:42:90:94:4e
-      management: true
-    eth0:
-      driver: igb
-      firmware_version: 1.67, 0x80000fb0, 18.8.9
-      interface: Ethernet
-      ip: 172.16.110.11
-      mac: 44:a8:42:90:94:4f
-      management: false
-      model: I350 Gigabit Backplane Connection
-      name: eno1
-      rate: 1000000000
-      sriov: true
-      sriov_totalvfs: 7
-      vendor: Intel
-    eth1:
-      driver: igb
-      firmware_version: 1.67, 0x80000fb0, 18.8.9
-      interface: Ethernet
-      mac: 44:a8:42:90:94:50
-      management: false
-      model: I350 Gigabit Backplane Connection
-      name: eno2
-      sriov: true
-      sriov_totalvfs: 7
-      vendor: Intel
-    eth2:
-      driver: igb
-      firmware_version: 1.67, 0x80000fb0, 18.8.9
-      interface: Ethernet
-      mac: 44:a8:42:90:94:51
-      management: false
-      model: I350 Gigabit Backplane Connection
-      name: eno3
-      sriov: true
-      sriov_totalvfs: 7
-      vendor: Intel
-    eth3:
-      driver: igb
-      firmware_version: 1.67, 0x80000fb0, 18.8.9
-      interface: Ethernet
-      mac: 44:a8:42:90:94:52
-      management: false
-      model: I350 Gigabit Backplane Connection
-      name: eno4
-      sriov: true
-      sriov_totalvfs: 7
-      vendor: Intel
-  operating_system:
-    cstate_driver: intel_idle
-    cstate_governor: menu
-    ht_enabled: true
-    pstate_driver: intel_cpufreq
-    pstate_governor: performance
-    turboboost_enabled: true
-  processor:
-    cache_l1d: 32768
-    cache_l1i: 32768
-    cache_l2: 262144
-    cache_l3: 26214400
-    ht_capable: true
-    instruction_set: x86-64
-    microcode: '0x49'
-    model: Intel Xeon
-    other_description: Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz
-    vendor: Intel
-    version: E5-2660 v3
-  storage_devices:
-    pci-0000:03:00.0-scsi-0:2:0:0:
-      by_id: "/dev/disk/by-id/wwn-0x644a842015db5d001d03249003237a65"
-      by_path: "/dev/disk/by-path/pci-0000:03:00.0-scsi-0:2:0:0"
-      firmware_version: 4.29
-      model: PERC H330 Mini
-      size: 598879502336
-      storage: HDD
-  supported_job_types:
-    virtual: ivt
diff --git a/input/grid5000/sites/rennes/clusters/roazhon5/roazhon5.yaml b/input/grid5000/sites/rennes/clusters/roazhon5/roazhon5.yaml
index b8ee5ac7e69c07dc1cbc5baa8732e11d9f0fffe0..179180b4c31ef942704655bca907811f45fc9700 100644
--- a/input/grid5000/sites/rennes/clusters/roazhon5/roazhon5.yaml
+++ b/input/grid5000/sites/rennes/clusters/roazhon5/roazhon5.yaml
@@ -7,6 +7,9 @@ queues:
   - admin
   - testing
 nodes:
+  roazhon5-8:
+    status: retired
+
   roazhon5-[1-12]:
     supported_job_types:
       deploy: true
@@ -21,6 +24,7 @@ nodes:
       bmc_vendor_tool: racadm
     network_adapters:
       bmc:
+        interface: Ethernet
         enabled: true
         mountable: false       
         mounted: false