diff --git a/rhel8/index.md b/rhel8/index.md
index 8aebb55d..cd7ba182 100644
--- a/rhel8/index.md
+++ b/rhel8/index.md
@@ -49,6 +49,17 @@ is hanging. Usually it is after the installation of `/etc/sssd/sssd.conf`. Just
 After the `pli-firstboot` script it stopps due to errors (installed yfs kernel module version does not fit running kernel). Still it manages to install everything fine.  
 So please restart the machine (so it loads the right kernel) and run `puppet agent` again to finally start and enable the `yfs-service`.
 
+### AFS cache partition not created due to existing XFS signature
+It can happen when upgrading an existing RHEL 7 installation that the puppet run produces
+```
+Error: Execution of '/usr/sbin/lvcreate -n lv_openafs --size 2G vg_root' returned 5: WARNING: xfs signature detected on /dev/vg_root/lv_openafs at offset 0. Wipe it? [y/n]: [n]
+```
+This needs to be fixed manually:
+- run the complaining command and approve (or use `--yes`)
+- run `puppet agent -t` to finalize the configuration
+
+
+
 ### "yum/dnf search" Gives Permission Denied as Normal User
 It works fine beside the below error message:
 ```