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detly
Asked: 2012-03-05 18:34:36 +0800 CST

How can I run qemu with KVM over ssh?

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When I run qemu -cpu kvm64 -snapshot -hda binary.img at a local console, the image boots and runs as I expect. However, when I log in via ssh -C -X, I see:

$ qemu -cpu kvm64 -snapshot -hda binary.img 
open /dev/kvm: Permission denied
Could not initialize KVM, will disable KVM support
qemu: pci_add_option_rom: failed to find romfile "pxe-rtl8139.bin"

(The pxe-rtl8139 message is there when run locally as well, it doesn't seem to matter.)

Why does using SSH make a difference? How can I run qemu over SSH without needing root permissions?

Both machines are Ubuntu 11.10, qemu and qemu-kvm are 0.14.1+noroms-0ubuntu6.2

ssh qemu

1 Answers

  1. Best Answer

    After additional information in the comments, You need to add your user to the kvm group.

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