diff --git a/qemu/tests/cfg/blockdev_commit.cfg b/qemu/tests/cfg/blockdev_commit.cfg
index 4c7c9ff20d40645f31a4fe4e03edfcb678b160ca..a4e92b78794dc45511a98015386e3baa2feb4ec6 100644
--- a/qemu/tests/cfg/blockdev_commit.cfg
+++ b/qemu/tests/cfg/blockdev_commit.cfg
@@ -33,6 +33,7 @@
     #mode = "absolute-paths"
     base_tag = sn1
     top_tag = sn3
+    rebase_mode = unsafe
     Host_RHEL.m8:
         node = ${device}
         qemu_force_use_drive_expression = no
diff --git a/qemu/tests/cfg/blockdev_full_backup.cfg b/qemu/tests/cfg/blockdev_full_backup.cfg
index 17ba134cdda6abc97f6614d5507abd6008dfb004..366605c326b2a443d262e505a389f85853777326 100644
--- a/qemu/tests/cfg/blockdev_full_backup.cfg
+++ b/qemu/tests/cfg/blockdev_full_backup.cfg
@@ -20,6 +20,7 @@
     sync = full
     source_images = src1
     target_images = dst1
+    rebase_mode = unsafe
     variants:
         - with_data_plane:
            only Host_RHEL
diff --git a/qemu/tests/cfg/blockdev_full_backup_multi_disks.cfg b/qemu/tests/cfg/blockdev_full_backup_multi_disks.cfg
index 4c4fed7818c8b507c1a602d8d1b3b8dbec783a8f..92daa662d91a9445d4f518cb22fdd6e1ddafafbb 100644
--- a/qemu/tests/cfg/blockdev_full_backup_multi_disks.cfg
+++ b/qemu/tests/cfg/blockdev_full_backup_multi_disks.cfg
@@ -29,6 +29,7 @@
     target_images = dst1 dst2
     type = blockdev_full_backup_simple
     backup_options = "sync"
+    rebase_mode = unsafe
     variants:
         - with_data_plane:
            only Host_RHEL
diff --git a/qemu/tests/cfg/blockdev_full_mirror.cfg b/qemu/tests/cfg/blockdev_full_mirror.cfg
index 996c02b8e23bd6b089280a3a2854d8c75fc93274..2c359334665ab7fb5a02bd1a8363bc4f74773b92 100644
--- a/qemu/tests/cfg/blockdev_full_mirror.cfg
+++ b/qemu/tests/cfg/blockdev_full_mirror.cfg
@@ -22,6 +22,7 @@
     sync = full
     auto-dismiss = true
     auto-finalize = true
+    rebase_mode = unsafe
     variants:
         - with_data_plane:
            only Host_RHEL
diff --git a/qemu/tests/cfg/blockdev_snapshot.cfg b/qemu/tests/cfg/blockdev_snapshot.cfg
index e0f808422db9d164cf2a12f236b0321d6a0c749d..6fd260577bd80c799c5b7cbd7084aefb0e486ba5 100644
--- a/qemu/tests/cfg/blockdev_snapshot.cfg
+++ b/qemu/tests/cfg/blockdev_snapshot.cfg
@@ -17,6 +17,7 @@
     image_format_sn1 = qcow2
     device = "drive_data"
     format = qcow2
+    rebase_mode = unsafe
     #mode = "absolute-paths"
     Host_RHEL.m8:
         node = "drive_data"
diff --git a/qemu/tests/cfg/blockdev_stream.cfg b/qemu/tests/cfg/blockdev_stream.cfg
index 895d67c89cc80d09844a8e5efa1113f040769c65..b5d1206842088f701ca946dd6516221c02549e4d 100644
--- a/qemu/tests/cfg/blockdev_stream.cfg
+++ b/qemu/tests/cfg/blockdev_stream.cfg
@@ -17,6 +17,7 @@
     image_format_sn1 = qcow2
     device = "drive_data"
     format = qcow2
+    rebase_mode = unsafe
     #mode = "absolute-paths"
     Host_RHEL.m8:
         node = "drive_data"