Failed to start virtfs-proxy-helper for device

LXD
1

I’m new to lxd, so forgive me if I’ve made a false assumption. I’m trying to set up a virtual machine instance using lxd and mount in a volume from my host. From what I’ve read on the forums here, 9p mounts should work.

I’m trying this:

lxc init images:fedora/32 fedora --vm
lxc config device add fedora home disk source=/home path=/home
lxc start fedora --console

I get an error instead:

Error: Failed to start device "home": Failed to start virtfs-proxy-helper for device "home": Unable to start process: exec: "virtfs-proxy-helper": executable file not found in $PATH

virtfs-proxy-helper is in my path:

$ which virtfs-proxy-helper
/usr/bin/virtfs-proxy-helper

Should this not work after all?

2

Try installing qemu-block-extra package:

sudo apt install qemu-block-extra
3

Ah sorry, misread your post.

Are you running the snap?

Can you so the output of echo $PATH please.

4

I am running the snap. My $PATH is:

/home/link/.pyenv/shims:/home/link/.pyenv/bin:/home/link/.cargo/bin:/home/link/go/bin:/home/link/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin:/var/lib/snapd/snap/bin

I’m running PopOS 20.04, but so far from what I’ve found, that doesn’t change the lxd packages from upstream.

5

Interesting, are you running the latest snap, as that should bundle the required program.

6

Yea, looks like 4.4.

Name  Version  Rev    Tracking         Publisher   Notes
lxd   4.4      16889  latest/stable/…  canonical✓  -
7

Any ideas @stgraber?

8

Hmm, I can confirm it’s missing from the snap, looking into why.

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9

I believe I have a fix, testing it now.

10

Strange, I checked the snap build file and could see it mentioned in there.

11

Yes but with a wildcard pattern so it won’t fail if missing.
The issue is that it gets dumped into libexec/ rather than bin/ and so doesn’t get included.

1 Like
12

Pushed a fix to all branches, will be a couple of hours before I can push stuff to stable though.

13

@stgraber, did you get a chance to push the bits to stable?

Edit: Nevermind, I checked the snap revision and see that virtfs-proxy-helper is in the snap root /bin. I’ll give this a try and see if it’s resolved.

14

All good! VM’s with a mounted disk now boot up.

1 Like