qvm-prefs should accept "none" vm name for netvms

[jaseg]

Qubes OS version:

4.0

Affected component(s):

qvm-prefs

Steps to reproduce the behavior:

qvm-prefs personal netvm none

Expected behavior:

Netvm set to (none) as would be displayed in the settings GUI, VM networking is disabled.

Actual behavior:

qvm-prefs quits with an error message:
qvm-prefs: error: VM name cannot be 'none' nor 'default'

General notes:

It took me the better part of two weeks running into this issue repeatedly until I bothered to search qubes-issues to discover that somewhere in man qvm-prefs it is mentioned that you set a domain's netvm to none by passing an empty string(!) to qvm-prefs.

IMHO there's two ways to fix this.

• Make the above error message read qvm-prefs: error: VM name cannot be 'none' nor 'default'. To un-set a VM name, set it to the empty string "".
• Accept none as a VM name. The user's intent is obvious in this case, and it would be consistent with the settings GUI. Thanks to #3002 and QubesOS/qubes-core-admin#144 there is no harm in doing this.

I would strongly recommend the latter, as that is what I would have expected, and AFAIR this is what qubes R3.2 did. In addition, assigning special semantics to empty-string command line arguments is just gross.

Related issues:

#3287 and #3011 where people shared my confusion on this.
#3002 and QubesOS/qubes-core-admin#144 in which creating VMs named "none" was disallowed.

[qubesos-bot]

Automated announcement from builder-github

The package python2-qubesadmin-4.0.18-0.1.fc25 has been pushed to the r4.0 testing repository for dom0.
To test this update, please install it with the following command:

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Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package python2-qubesadmin-4.0.18-0.1.fc25 has been pushed to the r4.0 testing repository for dom0.
To test this update, please install it with the following command:

sudo qubes-dom0-update --enablerepo=qubes-dom0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package core-admin-client has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

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Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package core-admin-client has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-core-admin-client_4.0.18-1+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package qubes-core-admin-client_4.0.18-1+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component core-admin-client (including package python2-qubesadmin-4.0.18-0.1.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component core-admin-client (including package python2-qubesadmin-4.0.18-0.1.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update