multipass launch

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The multipass launch[1] command without any argument will create and start a new instance based on the default image, using a random generated name, you can configure it using --name option. As of August 2020 no renaming option is available[2].

Commands

  • multipass launch --name ubuntu-lts-custom --cloud-init cloud-config.yaml

To find available images execute: multipass find

Examples

multipass launch impish
Launched: my-open-kit
multipass launch 21.10 --name my_VM
Retrieving image: 6%
Verifying image:  \
Starting /
Waiting for initialization to complete -
Launched: my_VM

It will create a 5GB Ubuntu machine with 1 CPU and 1 GB memory

Examples with errors

multipass launch lts
launch failed: The following errors occurred:
Instance stopped while starting
multipass launch
launch failed: CPU does not support KVM extensions.

multipass launch
launch failed: Downloaded image hash does not match

Solution: review /Library/Logs/Multipass/multipassd.log
Under macOS multipass or VMware VMs.
multipass launch
launch failed: cannot connect to the multipass socket
Please ensure multipassd is running and '/var/snap/multipass/common/multipass_socket' is accessible
multipass launch 21.10
launch failed: Operation canceled
multipass launch -n myfedora https://download.fedoraproject.org/pub/fedora/linux/releases/31/Cloud/x86_64/images/Fedora-Cloud-Base-31-1.9.x86_64.raw.xz
launch failed: http and file based images are not supported

Related commands

See also

  • https://multipass.run/docs/launch-command
  • https://github.com/canonical/multipass/issues/255
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