Lost network after PVE rebooted
After reboot of PVE, network interfaces detected, but no link activated,
ip address command shows all physical interfaces are down, and interfaces LED lights are shut off when loading OS.
Getting permission denied error when run
ifup command, when using
python3 /usr/sbin/ifup -a command, getting error as another instance of this application is already running
strace python3 /usr/sbin/ifup -a command, found that the command tried to access folder
/run/network, but it doesn't exist.
/run/network after rebooted, then run command
python3 /usr/sbin/ifup -a to bring up network manually.
Note: This is only a temporary solution, because the folder
/run/network will disappear. Will troubleshoot again when got time.