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Invalid YAML: mapping values are not allowed in this context: network:

rated 0 times [ 0] [ 0] / answers: 1 / hits: 17909 / 1 Year ago, sat, march 11, 2023, 8:06:56

I'm trying to configure a static IP and I keep getting this error when I try and execute the changes:

Invalid YAML: mapping values are not allowed in this context:

network:

       ^

I've edited my /etc/netplan/00-installer-config.yaml to:

network:

 version: 2

 ethernets:

  eno1:

   dhcp4: false

   addresses: [192.168.20.6/24]

   gateway4: 192.168.20.2

   nameservers:

    addresses: [8.8.8.8,8.8.4.4,192.168.20.2]

I used this guide for this configuration, but I've also followed a bunch of other guides and each time with same result.

All the other questions I've read that are related to this issue have been some problem to do with incorrect indentation or spacing, but I can't see where I'm going wrong. I've followed a few different examples, and have rewritten the file several times to try and make sure I'm not missing a stray spaces but I'm getting the same result every time.

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taigysel

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answered 1 Year ago iedncommon · Accepted Answer

Your /etc/netplan/00-installer-config.yaml should look like this. Netplan is very fussy about formatting. Use my .yaml EXACTLY as I show it.

2 space indentation

no tabs

added "renderer: networkd"

"dhcp4: false" is not required, as false is the default

brackets around [192.168.20.6/24]

spaces after commas in nameservers addresses

network:

  version: 2

  renderer: networkd

  ethernets:

    eno1:

      addresses: [192.168.20.6/24]

      gateway4: 192.168.20.2

      nameservers:

        addresses: [8.8.8.8, 8.8.4.4, 192.168.20.2]

sudo netplan --debug generate

sudo netplan apply

reboot