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Re: [Qemu-discuss] quick start help after build

From: Mike Lovell
Subject: Re: [Qemu-discuss] quick start help after build
Date: Wed, 30 Jul 2014 16:57:19 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

On 07/30/2014 04:54 PM, graff zeltner wrote:
Running the command 'which qemu-i386' and 'which qemu-system-x86_64' produces two different versions on my system. I am running Linux kernel 3.14. qemu-i386 resides in /usr/bin and is version 1.70 Debian, and qemu-system-x86_64 in /usr/local/bin is version 1.7.50 which I built from sources about 2 years ago. I've used the same commands for the latest version as I've used for the 1.7.50 version, except that I've added --prefix=/usr/local/bin --target-list="i386-linux-user x86_64-linux-user" and did not test the binary before "make install". The early Debian repo version was broken and had broken/unmaintained dependencies.

I have now changed to the options as you've suggested --target-list="i386-softmmu x86_64-softmmu" and checked for KVM. It turns out that the KVM was not enabled on my system. Here's how to check for that.

grep -E 'vmx|svm' /proc/cpuinfo
lsmod | grep kvm

you should see kvm_intel or kvm_amd with the last digit "1" meaning it is enabled, if you see a "0" it is probably not. modprobe does not work here. You need to enable kvm in the BIOS, which on most systems is disabled by default. Enter BIOS setup and check that virtualization is "enabled". After enabling it on my system using -kvm-enable option allowed me to boot the latest qemu version in about 1 minute. This is really great.

Thanks for all your help.

cool. i'm glad you got things working and that is was a simple fix.


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