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Re: [libvirt] Windows VM doesn't start as Linux one does

Daniel P. Berrange a écrit :

Hi Daniel,

On Wed, Nov 11, 2009 at 06:56:37PM +0100, Daniel Huhardeaux wrote:
My start script -which started without any problem my XPHome VM- is:



sudo /usr/bin/kvm -localtime -cdrom /dev/scd0 -boot c -hda /media/XP/vdisk.img -hdb /media/XP/vdisk1.img -m 512 -soundhw $AUDIO -vga $VGA\ -net nic,vlan=0 -net vde,vlan=0,sock=/var/run/vde.ctl -usb -smb public -monitor tcp:,server,nowait &

The XML file for the same VM which fail on boot is:

<domain type='kvm'> <name>XPHome</name> <uuid>26e5de74-0841-c4b3-4cc1-e0df0f93cb31</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='pc'>hvm</type> <boot dev='hd'/> </os> <features> <pae/> </features>
 <clock offset='localtime'/>
   <disk type='file' device='disk'>
     <source file='/media/XP/vdisk.img'/>
     <target dev='hda' bus='ide'/>
   <disk type='file' device='disk'>
     <source file='/media/XP/vdisk1.img'/>
     <target dev='hdb' bus='ide'/>
   <disk type='block' device='cdrom'>
     <source dev='/dev/cdrom'/>
     <target dev='hdc' bus='ide'/>
   <interface type='bridge'>
     <mac address='54:52:00:7a:ee:01'/>
     <source bridge='virbr2'/>
   <serial type='pty'>
     <source path='/dev/pts/6'/>
     <target port='0'/>
   <console type='pty' tty='/dev/pts/6'>
     <source path='/dev/pts/6'/>
     <target port='0'/>
   <input type='tablet' bus='usb'/>
   <input type='mouse' bus='ps2'/>
   <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>
   <sound model='es1370'/>
     <model type='cirrus' vram='9216' heads='1'/>

Can you get the libvirt QEMU args from the log file


so we can compare them to the args your custom script
used. There will probably be some minor difference that's confusing windows

LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HOME=/home/dh USER=root LOGNAME=root QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc -m 512 -smp 1 -name XPHome -uuid 26e5de74-0841-c4b3-4cc1-e0df0f93cb31 -monitor unix:/var/lib/libvirt/qemu/XPHome.monitor,server,nowait -localtime -no-acpi -boot c -drive file=/media/XP/vdisk.img,if=ide,index=0,boot=on -drive file=/media/XP/vdisk1.img,if=ide,index=1 -drive file=/dev/cdrom,if=ide,media=cdrom,index=2 -net nic,macaddr=54:52:00:7a:ee:01,vlan=0,name=nic.0 -net tap,fd=17,vlan=0,name=tap.0 -serial pty -parallel none -usb -usbdevice tablet -vnc -k en-us -vga cirrus -soundhw es1370
char device redirected to /dev/pts/6

Running this command in a terminal i get

TUNGETIFF ioctl() failed: Bad file descriptor
TUNSETOFFLOAD ioctl() failed: Bad file descriptor

and VM is *NOT* starting!

There is no tap interface but a virbr2. Anyway, it's the same for Linux VMs -I checked in logs- and they start.

Thanks for your support.


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