socket: 0.954 device: 0.830 network: 0.805 mistranslation: 0.708 architecture: 0.693 performance: 0.557 ppc: 0.503 PID: 0.488 graphic: 0.481 vnc: 0.462 files: 0.455 kernel: 0.433 boot: 0.365 semantic: 0.345 permissions: 0.315 peripherals: 0.303 risc-v: 0.295 register: 0.275 debug: 0.247 x86: 0.234 arm: 0.234 i386: 0.182 user-level: 0.151 TCG: 0.139 hypervisor: 0.134 VMM: 0.120 virtual: 0.095 assembly: 0.085 KVM: 0.032 Failed to set NBD socket ubuntu 15.10 & nbd client 3.10 Running command to mount using nbd fails with error /build/qemu-YZq7uh/qemu-2.3+dfsg/nbd.c:nbd_init():L670: Failed to set NBD socket Can you still reproduce this with the latest version of upstream QEMU? Please also provide the exact steps (e.g. command line options) that you were using here. [Expired for QEMU because there has been no activity for 60 days.]