open-vm-tools: Unknown ioctl 1976

November 25, 2020 6:12 PM / 3 Comments /

Recently I setup my Raspberry Pi 4B 8GB ESXi Cluster. After compling and installing the open-vm-tools for Arm64/AArch64 I got alot of messages regarding “Unknown ioctl 1976”. This happens due to missing “VMCI_SOCKETS” module load during startup. You can simply fix this by adding the following lines to /etc/modprobe.d/blacklist.conf:

blacklist vsock_loopback
blacklist vmw_vsock_virtio_transport_common
install vsock_loopback /usr/bin/true
install vmw_vsock_virtio_transport_common /usr/bin/true

Posted in: ESXi, VMWare / Tagged: , , , ,

3 Thoughts on “open-vm-tools: Unknown ioctl 1976”

  1. SLATES361 on January 2, 2021 at 8:24 AM said:

    Thank you!!1

    Reply↓
  2. Dom on July 6, 2021 at 10:33 AM said:

    Works fine!

    Reply↓
  3. Mark on October 24, 2021 at 11:44 AM said:

    Yes, thank you very much for this!

    Reply↓

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