"Failed to mount folders in Linux guest." Complains about "vboxsf"

[edwardtilley116]

I (Apple M1 Pro (Sonora)) have brew installed qemu and done vagrant plugin install vagrant-qemu

I have enabled smb sharing in System Preferences.

My Vagrantfile is

Vagrant.configure("2") do |config|
  config.vm.box = "perk/ubuntu-2204-arm64"
  config.vm.synced_folder ".", "/vagrant", type: "smb", smb_host: "192.168.4.22"
  config.vm.provider "qemu" do |qe|
    qe.ssh_port = "50031" # change ssh port as needed
  end 
end

When calling vagrant up --provider=qemu

I get

SNIP
==> default: Machine booted and ready!
==> default: Mounting SMB shared folders...
default: /Users/SNIP/vagrant => /vagrant
Failed to mount folders in Linux guest. This is usually because
the "vboxsf" file system is not available. Please verify that
the guest additions are properly installed in the guest and
can work properly. The command attempted was:

mount -t cifs -o sec=ntlmssp,nounix,noperm,credentials=/etc/smb_creds_vgt-8b7eb0a56e55a9f14bbaa7c9cd92a2d9-6ad5fdbcbf2eaa93bd62f92333a2e6e5,uid=1000,gid=1000,mfsymlinks,_netdev,nofail //192.168.4.22/vgt-8b7eb0a56e5
5a9f14bbaa7c9cd92a2d9-6ad5fdbcbf2eaa93bd62f92333a2e6e5 /vagrant

The error output from the last command was:

mount error(13): Permission denied
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)

Let me know if there's any other information I can provide.

[ppggff]

Have you completed the steps in https://developer.hashicorp.com/vagrant/docs/synced-folders/smb ?
And enter the right user name and password when booting? (should be the user name and password of current mac user)

[edwardtilley116]

Have you completed the steps in https://developer.hashicorp.com/vagrant/docs/synced-folders/smb ? And enter the right user name and password when booting? (should be the user name and password of current mac user)

Yes. I SMB file sharing is turned on in settings. And yes I am entering the correct password.