[systemd-devel] Systemd-nspawn: Cannot create tun device in container

Lennart Poettering lennart at poettering.net
Wed Oct 8 05:05:15 PDT 2014


On Fri, 03.10.14 10:46, James Lott (james at lottspot.com) wrote:

> Hello, list!
> 
> In some work I've been doing with systemd-nspawn containers, I've been trying 
> to connect one of my containers to an openvpn network. This conteiner is being 
> run with the --network-bridge flag to setup its networking, so according to the 
> documentation, should retain CAP_NET_ADMIN capabilities. However, the 
> container appears to be unable to create a new tun device
> 
> [root at lanvpn ~]# ip tuntap add dev tun0 mode tun
> open: No such file or directory

Can you check with strace what precisely fails here?

Lennart

-- 
Lennart Poettering, Red Hat


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