One Click Virtualization⚡

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FAQ ​

nerdctl: command not found ​

The containerd environment is not correctly installed or /usr/local/bin is not in PATH.

Fix:

shell
export PATH="/usr/local/bin:$PATH"
echo 'export PATH="/usr/local/bin:$PATH"' >> /etc/profile
source /etc/profile

If still not found, re-run the installation script:

shell
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerdinstall.sh)

containerd service not running ​

shell
systemctl status containerd
systemctl restart containerd

View logs:

shell
journalctl -u containerd -f

Container cannot access external network (IPv4) ​

Check if iptables NAT rules exist:

shell
iptables -t nat -L POSTROUTING -n -v | grep 172.20

If not present, add manually:

shell
iptables -t nat -A POSTROUTING -s 172.20.0.0/16 ! -d 172.20.0.0/16 -j MASQUERADE
iptables -A FORWARD -s 172.20.0.0/16 -j ACCEPT
iptables -A FORWARD -d 172.20.0.0/16 -j ACCEPT

Container IPv6 not working ​

  1. Confirm the host has a public IPv6 address
  2. Check if the containerd-ipv6 CNI network exists:
shell
cat /etc/cni/net.d/20-containerd-ipv6.conflist
  1. Check if the ndpresponder container is running:
shell
nerdctl ps | grep ndpresponder

Image pull failed ​

The script includes built-in CDN detection. You can also manually test CDN availability:

shell
curl -4 -sL -k "https://cdn0.spiritlhl.top/https://raw.githubusercontent.com/spiritLHLS/ecs/main/back/test" --max-time 6

How to completely reset the containerd environment ​

Uninstall, then reinstall:

shell
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerduninstall.sh)
bash <(wget -qO- https://raw.githubusercontent.com/oneclickvirt/containerd/main/containerdinstall.sh)

If lxcfs is not installed on the host, containers will see the host's CPU/memory view. Install lxcfs:

shell
apt-get install -y lxcfs   # Debian/Ubuntu
yum install -y lxcfs       # CentOS/RHEL

Disk limit not working ​

Disk limits require xfs or btrfs snapshotter support. The default overlay snapshotter does not support container-level disk limits.

For disk limits, refer to the docker or incus solution documentation.