19 January 2026
20 January 2026
error while upgrade to v5 : root@pnetlab:~# curl -sL 'https://labhub.eu.org/api/raw/?path=/UNETLAB%20I/upgrades_pnetlab/bionic/install_pnetlab_latest_v5.sh' | sh
sh: 1: {error:{error:{code:itemNotFound,message:The resource could not be found.}}}: not found
root@pnetlab:~#
Tshilidzi Mufamadi#check-vt
To check virtualization, do the following:
Run this:
kvm-ok
Then this:
grep -cw vmx /proc/cpuinfo
And check the results. If CPU returns 0 or KVM is not supported, then enable virtualization on your VM.
Tshilidzi Mufamadi#beta_v6
📀 Installation instructions - PNetLab v6 BETA release
⚠️ Read the full instructions and important notes before starting the process. After you finish reading them, follow the process step by step.
Step 1
Download the Ubuntu Server 20.04 ISO and install the OS on a VM or bare metal.
Step 2
Run the installation script as root (copy-paste the full thing):
curl -sL https://labhub.eu.org/api/raw/?path=/UNETLAB%20I/upgrades_pnetlab/Focal/install_pnetlab_v6.sh | bash
After the installation script finishes running, reboot the server.
ℹ️ Important notes
- Make sure to enable Virtualization on your system BIOS and make sure your hardware supports nested virtualization.
Check if you meet the requirements by running:
grep -cw vmx /proc/cpuinfo
Check if KVM was installed correctly after the installation script finishes running:
kvm-ok
- When installed on GCP, skip the setup wizard by pressing CTRL + C after the first reboot and if you're tired of having to do that at every login, ask how to disable in this chat.
⚠️ Remember this version is still on beta so you might encounter bugs and unfinished features.
Tshilidzi Mufamadi#fix_apt
Troubleshooting steps for broken APT
1. Ensure you have an active internet connection.
- Test your connection by pinging google.com, 8.8.8.8, 1.1.1.1, or your preferred service provider.
- Check your DNS configuration.
2. Follow the steps to remove i-share.top from the list of sources (Send #remove_ishare to see the instructions).
3. Confirm that all sources in /etc/apt/sources.list are reachable.
- If there's an error related to repo.pnetlab.com, check spelling and use the correct protocol (https://). If issues persist, share the error message with @pnetlab.
- If other packages in sources.list cause problems, temporarily remove them and check if apt works with apt update.
5. If the mentioned steps don't resolve the issue, use these search terms for further troubleshooting: "fix apt Ubuntu $version," "apt fails to update + $error message"
Recommended forums and resources for Ubuntu troubleshooting:
- Ask Ubuntu
- FOSS Linux
- Ubuntu Help
Tshilidzi Mufamadi#pnet_repo_fix
If you're having an issue while executing apt update, try the solutions given below.
River Chu#check-vt
To check virtualization, do the following:
Run this:
kvm-ok
Then this:
grep -cw vmx /proc/cpuinfo
And check the results. If CPU returns 0 or KVM is not supported, then enable virtualization on your VM.
River Chu#nodes-troubleshooting
If you encounter issues with a node not starting or immediately stopping after clicking the start button, consider the following checklist and potential solutions:
Common Checks:
1. Image Integrity:
- Verify that the image is not corrupted. Compare the size of the image on your server with the size of the image from the source (e.g., LabHub).
For IOL Images:
1. Generate License File:
- Ensure that the license file is generated. Send #generate_license in this chat to receive instructions on how to generate the license file.
For QEMU Images:
1. Virtualization Support:
- Confirm that virtualization is supported on your system. Send #check-vt in this chat to receive instructions on how to check for virtualization support.
2. Fix Permissions:
- Correct permissions either through the GUI (click the button under "Settings" on PNetLab) or by running the following command in the terminal:
/opt/unetlab/wrappers/unl_wrapper -a fixpermissions
3. Follow the naming conventions:
- Adhere to the naming conventions required for PNetLab to detect imported qcow2 files as VMs. Refer to the conventions outlined here: https://www.eve-ng.net/index.php/documentation/qemu-image-namings/
By following these steps, you can address potential issues related to image integrity, licensing for IOL images, virtualization support for QEMU images, and permissions. If the problem persists after performing these checks and fixes, please let us know.
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📀 Installation instructions - PNetLab v6 BETA release
⚠️ Read the full instructions and important notes before starting the process. After you finish reading them, follow the process step by step.
Step 1
Download the Ubuntu Server 20.04 ISO and install the OS on a VM or bare metal.
Step 2
Run the installation script as root (copy-paste the full thing):
curl -sL https://labhub.eu.org/api/raw/?path=/UNETLAB%20I/upgrades_pnetlab/Focal/install_pnetlab_v6.sh | bash
After the installation script finishes running, reboot the server.
ℹ️ Important notes
- Make sure to enable Virtualization on your system BIOS and make sure your hardware supports nested virtualization.
Check if you meet the requirements by running:
grep -cw vmx /proc/cpuinfo
Check if KVM was installed correctly after the installation script finishes running:
kvm-ok
- When installed on GCP, skip the setup wizard by pressing CTRL + C after the first reboot and if you're tired of having to do that at every login, ask how to disable in this chat.
⚠️ Remember this version is still on beta so you might encounter bugs and unfinished features.