On 2015/3/10 14:32, Shannon Zhao wrote: > On 2015/3/10 12:59, Gayathri Nagarajan wrote: >> I have a problem with networking in qemu. I want to use the Linux tap device >> for qemu network. For that >> >> *1. I created a bridge -* >> >> $ sudo brctl addbr br0 >> >> *2. I used the following qemu-ifup script* >> >> #!/bin/sh >> set -x >> >> switch=br0 >> >> if [ -n "$1" ];then >> /usr/bin/sudo /usr/sbin/tunctl -u `whoami` -t $1 >> /usr/bin/sudo /sbin/ip link set $1 up >> sleep 0.5s >> /usr/bin/sudo /usr/sbin/brctl addif $switch $1 >> exit 0 >> else >> echo "Error: no interface specified" >> exit 1 >> fi >> >> *3. When I run qemu using* >> >> $ qemu-system-i386 -m 200M -cdrom images/ss.iso -serial stdio -device >> e1000,netdev=net0,mac=DE:AD:BE:EF:00:C0 -netdev >> tap,id=net0,script=/home/user/qemu-ifup >> >> */home/user/qemu-ifup:could not launch network script* >> > > Please check whether qemu-ifup exits at this directory and qemu-ifup has > executable permission. > Yes, the script has to have executable permission.
Regards, -Gonglei >> *qemu-system-i386: -netdev tap,id=net0,script=/home/user/qemu-ifup: Device >> 'tap' could not be initialized* >> >> >> How do I resolve this problem? >> >> Thank you >> >> gayathri >> >> > >
