[libvirt-users] Problems moving qemu machine to libvirt
Hi all,
I have a qemu-system-arm machine that I am currently starting using:
qemu-system-arm -M versatilepb -nographic \
-hda img.qcow2 \
-net vde,vlan=0,sock=/var/run/qemu-vde.ctl \
-net nic,vlan=0,macaddr=52:54:00:12:34:22 \
-kernel vmlinuz-2.6.18-6-versatile \
-initrd initrd.img-2.6.18-6-versatile \
-append "root=/dev/sda1 console=ttyAMA0,115200n8"
I converted the above to a virsh XML file using:
virsh domxml-from-native qemu-argv run.argc > arm32.xml
which resulted in this (minor modifications to provide full paths):
<domain type='qemu'>
<name>arm32</name>
<uuid>e433002b-107f-5b16-415b-7afb3e3a4d84</uuid>
<memory>262144</memory>
<currentMemory>262144</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='arm' machine='versatilepb'>hvm</type>
<kernel>/kvm/arm32/vmlinuz-2.6.18-6-versatile</kernel>
<initrd>/kvm/arm32/initrd.img-2.6.18-6-versatile</initrd>
</os>
<features>
<acpi/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/kvm/arm32/arm32.sh</emulator>
<disk type='file' device='disk'>
<source file='/kvm/arm32/img.qcow2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0'
unit='0'/>
</disk>
<controller type='ide' index='0'/>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target port='0'/>
</console>
</devices>
</domain>
Since libvirt doesn't support VDE networking I use a wrapper around
qemu-system-arm (/kvm/arm32/arm32.sh) containing:
#!/bin/bash
exec /usr/bin/qemu-system-arm $@ \
-net nic,vlan=0,macaddr=52:54:00:12:34:22 \
-net vde,vlan=0,group=vde2-net,mode=0770,sock=/var/run/qemu-vde.ctl \
-append "root=/dev/sda1 console=ttyAMA0,115200n8"
However, doing this I get the following error when I attempt to start
the VM:
error: Failed to start domain arm32
error: internal error Process exited while reading console log output:
char device redirected to /dev/pts/10
qemu: could not open disk image console=ttyAMA0,115200n8\"":
No such file or directory
The first problem (console log output) is probably due to the second,
where it seems that this:
<cmdline>root=/dev/sda1 console=ttyAMA0,115200n8</cmdline>
is not being passed to qemu correctly. I have tried quoting the command
line but that doesn't help.
Anyone have any clues?
Cheers,
Erik
--
----------------------------------------------------------------------
Erik de Castro Lopo
http://www.mega-nerd.com/