Re: /dev/net/tun no longer exists in F31 rawhide ?
On Mon, Mar 18, 2019 at 2:23 PM Adam Williamson
<adamwill(a)fedoraproject.org> wrote:
On Mon, 2019-03-18 at 14:07 +0000, Daniel P. Berrangé wrote:
> Historically in Fedora the /dev/net/tun device always existed, even if
> there is no 'tun' module currently loaded. Opening it then cause the
> 'tun' kernel module to autoload IIUC.
>
> In Fedora 31 rawhide this is no longer the case. The /dev/net/tun device
> node doesn't exist at all in a fresh install.
>
> Libvirt has always assumed the historical behaviour so currently it fails
> to setup networking due to /dev/net/tun no longer existing.
>
> I expect other applications which deal with tun devices will be similarly
> affected.
>
> I'm wondering if anyone can explain whether this is an intentional change
> in setup of /dev/ in Fedora 31 rawhide, or whether it is a bug that needs
> to be fixed ? I'm struggling to figure out what changed - presumably
> something related to udev but the rules wrt /dev/net/tun appear the same
> in F30 and F31.
I'd guess it's most likely a kernel change, so ask laura / justin
maybe?
I would have guessed at udev change as the kernel doesn't make /dev anything.