-----Original Message----- From: Daniel P. Berrange [mailto:berrange@redhat.com] Sent: Tuesday, February 05, 2013 6:18 PM To: Yin Olivia-R63875 Cc: libvir-list@redhat.com Subject: Re: [libvirt] How to connect to console of domain on PowerPC?
Hi Daniel,
Thanks for your comments. So far there's no device in QEMU to align with chardev on FSL PowerPC
On Tue, Feb 05, 2013 at 03:05:58AM +0000, Yin Olivia-R63875 wrote: platforms like spapr-pty for IBM PSeries.
Maybe it needs patches to QEMU. I'll take deeper investigation on it.
That's really a QEMU issue then - every chardev needs to have a corresponding -device to associtte with.
'-serial' syntax may be legacy but it should still work. There're two examples for "-serial tcp" use cases: $ cat libvirt/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp.args LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \ pc -m 214 -smp 1 -nographic -monitor unix:/tmp/test-monitor,server,nowait \ -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial \ tcp:127.0.0.1:9999 -parallel none -usb $ cat libvirt/tests/qemuxml2argvdata/qemuxml2argv-serial-tcp-chardev.args LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \ pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -chardev socket,\ id=charmonitor,path=/tmp/test-monitor,server,nowait -mon chardev=charmonitor,\ id=monitor,mode=readline -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -chardev \ socket,id=charserial0,host=127.0.0.1,port=9999 -device isa-serial,\ chardev=charserial0,id=serial0 -usb -device virtio-balloon-pci,id=balloon0,\ bus=pci.0,addr=0x3
But can't get any output when connecting domain with a simple private root filesystem. # vi vm2.xml <domain type='lxc'> <name>vm2</name> <memory>25536</memory> <os> <type>exe</type> <init>/sbin/init</init> </os> <vcpu>1</vcpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount'> <source dir='/media/ram/vm1-root'/> <target dir='/var/lib/libvirt/lxc/rootfs'/> </filesystem> <interface type='network'> <source network='default'/> </interface> <console type='pty' /> </devices> </domain>
# virsh -c lxc:/// define vm2.xml # virsh -c lxc:/// start vm2 Domain vm2 started
# virsh -c lxc:/// console vm2 Connected to domain vm2 Escape character is ^]
Do you have any suggestion?
Most likely is that the OS you are running has not decided to run any login process on the console
'/sbin/init' itself does not directly provide any console interaction It needs to be configured to run a mingetty process or similar
Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt- manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk- vnc :|