diff --git a/data/grid5000/sites/grenoble/clusters/vercors2/vercors2.json b/data/grid5000/sites/grenoble/clusters/vercors2/vercors2.json
index db415c818d38d6f47580dc4bee4d9cfbbf8a7f34..e23de26ecace35b5659bc15112d08efe589af4ca 100644
--- a/data/grid5000/sites/grenoble/clusters/vercors2/vercors2.json
+++ b/data/grid5000/sites/grenoble/clusters/vercors2/vercors2.json
@@ -1,5 +1,5 @@
 {
-  "boot_type": "uefi",
+  "boot_type": "bios",
   "created_at": "Thu, 01 Jan 1970 00:00:00 GMT",
   "exotic": false,
   "kavlan": false,
diff --git a/input/grid5000/sites/grenoble/clusters/vercors2/vercors2.yaml b/input/grid5000/sites/grenoble/clusters/vercors2/vercors2.yaml
index 0b656958228a4d5a81ef38e2cacf38c8a4ccab4d..084ae2ab861562278519988a52be9914920ae2b2 100644
--- a/input/grid5000/sites/grenoble/clusters/vercors2/vercors2.yaml
+++ b/input/grid5000/sites/grenoble/clusters/vercors2/vercors2.yaml
@@ -2,7 +2,7 @@
 model: Cluster Model # TODO: change this value.
 created_at: 1970-01-01 # TODO: change this value
 kavlan: false
-boot_type: uefi # TODO: specify if 'uefi' (ideally) or 'bios' (legacy, if no other choice)
+boot_type: bios
 exotic: false # TODO: specify if 'true' or 'false'
 queues:
   - admin