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Re: [Qemu-devel] Using qemu command not able launch VM
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] Using qemu command not able launch VM |
Date: |
Tue, 10 Oct 2017 09:23:32 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) |
John Snow <address@hidden> writes:
> On 10/07/2017 03:53 AM, Koushik Dutta wrote:
>> Hi All (qemu members),
>>
>> I installed qemu utility in my host machine. I want to start Virtual
>> machine using qemu command.
>>
>> My host machine: Intel-X86
>> Script for launching VM :
>>
>> T=/home/koushik/vpp/cloud_ubuntu_img
>> sudo qemu-system-i386 -enable-kvm -m 1024 -smp
>> sockets=1,cpus=4,cores=2 -cpu host \
>> -vga none -nographic \
>> -kernel $T/vmlinuz-4.4.0-96-generic --append "console=ttyAMA0
>> root=/dev/vda rw" \
>> -drive file=$T/custom32.img,if=virtio,aio=threads \
>> -chardev socket,id=char1,path=/tmp/sock1.sock \
>> -netdev type=vhost-user,id=mynet1,chardev=char1,vhostforce\
>> -device virtio-net-pci,mac=00:00:00:00:00:01,netdev=mynet1 \
>> -object
>> memory-backend-file,id=mem,size=1024M,mem-path=/dev/hugepages,share=on \
>> -numa node,memdev=mem -mem-prealloc \
>> #-debugcon file:debug.log -global isa-debugcon.iobase=0x402
>>
>>
>> Bug: Invalid netdev type
>>
>> Please let me know where i did wrong.
Sure: you didn't quote the full error message :)
Please try again.
>> Please help me.
>> Thanks to all in advance.
>>
>>
>> Thanks & Regards,
>> Koushik
>>
>
> type isn't a named parameter, it's positional.
>
> -netdev vhost-user,foo=bar
>
> Please take a look at the output from -help. look for "vhost-user."
Actually, -netdev vhost-user,... is shorthand for -netdev
type=vhost-user,...
I suspect the actual problem is vhost-user not being compiled in, i.e.
CONFIG_VHOST_NET_USED is off. Sadly, this isn't reflected in --help.
Screwed up in commit 03ce574442d.