When attempting to install VyOS from live CD to disk in configure mode, a misleading error message about destination file operands appears. The expected behavior is that VyOS cannot be installed because it is currently in configure mode, however the error message does not reflect this expectation.

Terminal output:

vyos@vyos:~$ configure
WARNING: You are currently configuring a live-ISO environment, changes will not persist until installed
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vyos@vyos# install image
install: missing destination file operand after 'image'
Try 'install --help' for more information.
[edit]
vyos@vyos#