[pve-devel] [PATCH docs] qm: ovmf: mention that an RNG device is required for PXE boot
Fiona Ebner
f.ebner at proxmox.com
Thu Aug 14 13:13:46 CEST 2025
The restriction was added with an update to the EDK2 packages for
Proxmox VE 8.4. The issue was mentioned in the known issues section,
but should also be mentioned in the docs as requested here:
https://bugzilla.proxmox.com/show_bug.cgi?id=2767#c5
Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
qm.adoc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/qm.adoc b/qm.adoc
index 55633fb..f798043 100644
--- a/qm.adoc
+++ b/qm.adoc
@@ -1136,6 +1136,10 @@ you need to set the client resolution in the OVMF menu (which you can reach
with a press of the ESC button during boot), or you have to choose
SPICE as the display type.
+When using OVMF with PXE boot, you have to add an xref:qm_virtio_rng[RNG device]
+to the VM. For security reasons, the OVMF firmware disables PXE boot for guests
+without a random number generator.
+
[[qm_tpm]]
Trusted Platform Module (TPM)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
2.47.2
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