On 10/25/07, Michael  wrote:

quoted text
> Hi,

>

> I've tried to run 5 QEMU guests simultanously but when trying to start

> the 5th I'll get the following error message:

>

> warning: could not open /dev/tun7 (No such file or directory): no

> virtual network emulation

> Could not initialize device 'tap'

>

> I have no idea why it looks for /dev/tun7 but after that I cd'ed to /dev

> and issued the command "./MAKEDEV tun4" but now I get the following

> message when starting qemu:

>

Maybe you'll have to compile a new kernel. There's an options(4) option

called tun. I had to add something like
pseudo-device   tun   16
on a kernel config file once. If I remember correctly, the default is the kernel

to allocate 4 tun channels. That would explain why it's failing in the 5th QEMU

guest.
Don't forget that customized kernels aren't "supported".