No guest network with KVM using vmbuilder

Mark Foster mark at foster.cc
Thu Jun 3 15:37:21 UTC 2010


I have seen two separate cases where vmbuilder on lucid produces a
non-working VM.
The VMs will boot but the / is read-only and there are tons of
ATA errors upon booting.
It might be the same problem.

My work-around was to use virt-install method.

On 06/02/2010 11:09 PM, Imre Gergely wrote:
> Did you try connecting through VNC to it, to see what's happening? Does
> the guest get an IP address on it's network interface?
>
> On 05/25/2010 05:42 PM, Walter Souto wrote:
>   
>> Hi, I hope I'm not asking something dummy, anyway...
>>
>> So, I'd use vmbuilder to create a VM like this:
>>
>> sudo vmbuilder kvm ubuntu \
>> --suite lucid --flavour virtual --arch amd64 -o -v \
>> --libvirt qemu:///system \
>> --cpus 1 --mem 256 \
>> --rootsize 8192 --swapsize 2048 \
>> --hostname vm101 \
>> --ip 10.0.3.11 --mask 255.255.252.0 --net 10.0.0.0 --bcast 10.0.3.255 \
>> --gw 10.0.3.254 --dns 10.0.3.254 --bridge br0 \
>> --user sysadmin --name SysAdmin --pass 656667 \
>> --addpkg acpid \
>> --addpkg openssh-server \
>> --mirror http://ironman:9999/ubuntu \
>> --raw /dev/vgvm/lvm01
>>
>> The host (lucid) has bridge br0 configured and forwarding with
>> 10.0.0.1 / 255.255.252.0. The configurations seems to be ok:
>>
>> <domain type='kvm'>
>>   <name>vm101</name>
>>   <uuid>43cf30ee-1d29-2c34-ebda-f16b9c2472bc</uuid>
>>   <memory>262144</memory>
>>   <currentMemory>262144</currentMemory>
>>   <vcpu>1</vcpu>
>>   <os>
>>     <type arch='x86_64' machine='pc-0.12'>hvm</type>
>>     <boot dev='hd'/>
>>   </os>
>>   <features>
>>     <acpi/>
>>   </features>
>>   <clock offset='utc'/>
>>   <on_poweroff>destroy</on_poweroff>
>>   <on_reboot>restart</on_reboot>
>>   <on_crash>destroy</on_crash>
>>   <devices>
>>     <emulator>/usr/bin/kvm</emulator>
>>     <disk type='file' device='disk'>
>>       <source file='/dev/vgvm/lvm01'/>
>>       <target dev='hda' bus='ide'/>
>>     </disk>
>>     <interface type='bridge'>
>>       <mac address='52:54:00:19:fd:7c'/>
>>       <source bridge='br0'/>
>>       <target dev='vnet0'/>
>>       <model type='virtio'/>
>>     </interface>
>>     <input type='mouse' bus='ps2'/>
>>     <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'/>
>>     <video>
>>       <model type='cirrus' vram='9216' heads='1'/>
>>     </video>
>>   </devices>
>>   <seclabel type='dynamic' model='apparmor'/>
>> </domain>
>>
>> I can't connect to the machine via SSH with the given IP. I can't ping
>> too. I have no clue about what can be wrong.  I did some research on
>> this list but no lucky...
>>
>> TIA,
>> --
>> Walter.
>>
>>     
>   


-- 
I hate racists.  Mark D. Foster <mark at foster.cc>  
http://mark.foster.cc/ |  http://www.freegeekseattle.org/






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