对于跨云迁移后cloud-init超时，禁用cloud-init

0x01 关闭前确认

务必保证网卡不是绑定旧 MAC 地址、旧接口名或固定 IP，否则关闭 cloud-init 后可能启动很快，但网络起不来。

  ip addr
  ip route
  systemctl is-enabled NetworkManager systemd-networkd 2>/dev/null
  grep -R "dhcp" /etc/netplan /etc/NetworkManager/system-connections 2>/dev/null

确认十几分钟超时是否真是cloud-init造成的，可在卡顿后的系统中查看：

  systemd-analyze blame | head -30

  journalctl -b \
    -u cloud-init-local.service \
    -u cloud-init.service \
    -u cloud-config.service \
    -u cloud-final.service \
    --no-pager

0x02 彻底关闭cloud-init

如果目标云不依赖 cloud-init，可以直接彻底禁用。使用“禁用文件 + disable + mask”：

mkdir -p /etc/cloud
touch /etc/cloud/cloud-init.disabled

systemctl disable cloud-init-local.service cloud-init.service cloud-config.service cloud-final.service

systemctl mask cloud-init-local.service cloud-init.service cloud-config.service cloud-final.service

systemctl daemon-reload

ls -l /etc/cloud/cloud-init.disabled
systemctl is-enabled cloud-init-local.service cloud-init.service cloud-config.service cloud-final.service

sync && reboot