qemu-system 启动错误“drive with bus=0, unit=0 (index=0) exists”

lonelysoul011

RT

错误信息如下：
使用了ifname

1. qemu-system-x86_64 -m 4096 -smp 4  -hda /root/kvm_demo/rhel58-test.img  -net nic,model=e1000 -net tap,ifname=tap1,script=/etc/qemu-ifup downscript=no  -vnc 172.28.18.244:1:5901
   
2. qemu-system-x86_64: -net tap,ifname=tap1,script=/etc/qemu-ifup: drive with bus=0, unit=0 (index=0) exists

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未使用ifname

1. qemu-system-x86_64 -m 4096 -smp 4  -hda /root/kvm_demo/rhel58-test.img  -net nic,model=e1000 -net tap,script=/etc/qemu-ifup downscript=no  -vnc 172.28.18.244:1:5901
   
2. qemu-system-x86_64: -net tap,script=/etc/qemu-ifup: drive with bus=0, unit=0 (index=0) exists

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其他测试：

1. [root@localhost ~]# qemu-system-x86_64 -m 4096 -smp 4  -hda /root/kvm_demo/rhel58-test.img  -net nic,model -net tap,script=/etc/qemu-ifup downscript=no  -vnc 172.28.18.244:1:5901
   
2. qemu-system-x86_64: -net tap,script=/etc/qemu-ifup: drive with bus=0, unit=0 (index=0) exists
   
3. [root@localhost ~]# qemu-system-x86_64 -m 4096 -smp 4  -hda /root/kvm_demo/rhel58-test.img  -net nic,model=rtl8139 -net tap,script=/etc/qemu-ifup downscript=no  -vnc 172.28.18.244:1:5901
   
4. qemu-system-x86_64: -net tap,script=/etc/qemu-ifup: drive with bus=0, unit=0 (index=0) exists

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宿主机：CentOS release 6.5 X64
QEMU emulator version 1.2.50 (qemu-kvm-devel)
内核版本
Linux localhost.localdomain 3.15.0-rc4+ #2 SMP Fri May 23 12:44:16 GMT 2014 x86_64 x86_64 x86_64 GNU/Linux

启动脚本：

1. [root@localhost ~]# cat /etc/qemu-ifup
   
2. #!/bin/sh
   
3. switch=br0
   
4. 
   
5. if [ -n "$1" ]
   
6. then
   
7.     #tunctl -u $(whoami) -t $1
   
8.     # start up the TAP interface
   
9.     #ifconfig $1 up
   
10.      ip link set $1 up
    
11.     sleep 1
    
12.     brctl addif ${switch} $1
    
13.     exit 0
    
14. else
    
15.     echo "Error: no interface specified"
    
16.     exit 1
    
17. fi

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宿主机网络状态：

1. [root@localhost ~]# brctl  show
   
2. bridge name        bridge id                STP enabled        interfaces
   
3. br0                8000.c81f66eded6b        yes                em1

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dmesg信息

1. [root@localhost ~]# dmesg
   
2. device tap0 entered promiscuous mode
   
3. br0: port 2(tap0) entered listening state
   
4. br0: port 2(tap0) entered listening state
   
5. br0: port 2(tap0) entered disabled state
   
6. device tap0 left promiscuous mode
   
7. br0: port 2(tap0) entered disabled state

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messages 信息

1. [root@localhost ~]# tail /var/log/messages -f
   
2. 
   
3. Jun 22 17:44:34 localhost kernel: device tap0 entered promiscuous mode
   
4. Jun 22 17:44:34 localhost kernel: br0: port 2(tap0) entered listening state
   
5. Jun 22 17:44:34 localhost kernel: br0: port 2(tap0) entered listening state
   
6. Jun 22 17:44:34 localhost kernel: br0: port 2(tap0) entered disabled state
   
7. Jun 22 17:44:34 localhost kernel: device tap0 left promiscuous mode
   
8. Jun 22 17:44:34 localhost kernel: br0: port 2(tap0) entered disabled state

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出现问题后重启过一次，问题依旧！

kifast

host：CentOS-6.5-x86_64
qemu： QEMU emulator version 1.4.2

/usr/local/bin/qemu-system-x86_64 -name win7_x86 -hda win7_x86.qcow2 -boot c -m 1024  -spice port=5911,disable-ticketing -enable-kvm -vga qxl  -net nic,model=e1000 -net tap,ifname=tap1,script=/etc/qemu-ifup

#cat /etc/qemu-ifup

1. #!/bin/sh
   
2. switch=br0
   
3. 
   
4. if [ -n "$1" ]
   
5. then
   
6.     ip link set $1 up
   
7.     sleep 1
   
8.        
   
9.     /usr/sbin/brctl addif ${switch} $1
   
10.        
    
11.     exit 0
    
12. else
    
13.     echo "Error: no interface specified"
    
14.     exit 1
    
15. fi

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我这边是可以的。看代码，跟磁盘参数的解析有关，但是看你的运行参数，又没有冲突。
可以把-hda 换成  -hdb -hdc -hdd 试试。

sunjqin

downscript=***前面是不是少了一个逗号 把-hda 的内容放到最后面 qemu-system-x86_64 -h上面有参数顺序,需要参照一下