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Step 25: IMPORTANT: Edit network interface name
nano /etc/netplan/00-installer-config.yaml
change interface name “ensXXX” to “eth0”
To save edited 00-installer-config.yaml use keys
combo:
[Ctrl]+[o] Letter o (oscar)
Enter
[Ctrl]+[x] Letter x (x-ray) for exit

Step 26: Update interface names with single line command:
sed -i -e 's/GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="net.ifnames=0
noquiet"/' /etc/default/grub

Step 27: Update GRUB
update-grub

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# This is the network config written by 'subiquity'
network:
  ethernets:
    eno1:
      dhcp4: true
    eno2:
      dhcp4: true
    eno3:
      dhcp4: true
    eno4:
      dhcp4: true
    eno49:
      dhcp4: true
    eno50:
      dhcp4: true
    eth1f0:
      addresses:
      - 10.0.0.25/24
      gateway4: 10.0.0.1
      nameservers:
        addresses:
        - 8.8.8.8
        - 4.4.4.4
        search: []
    ens1f1:
      dhcp4: true
  version: 2

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Attaching output of 'ip a' after issuing the bellow commands are reboot:

sed -i -e 's/GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="net.ifnames=0
noquiet"/' /etc/default/grub

update-grub

reboot

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Step 25: IMPORTANT: Edit network interface name
nano /etc/netplan/00-installer-config.yaml
change interface name “ensXXX” to “eth0”
To save edited 00-installer-config.yaml use keys
combo:
[Ctrl]+[o] Letter o (oscar)
Enter
[Ctrl]+[x] Letter x (x-ray) for exit