CentOS-6.2
We have a dedicated CentOS-5.7 host used for fax reception and transmission that we wish to move to a CentOS-6.2 virtual guest instance. The CentOS-6.2 virtual host has a 4-port serial card installed.
lspci -v tshows this this:
03:00.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 0 (Uart) (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd Device 0000 Flags: medium devsel, IRQ 17 I/O ports at d040 [size=32] Memory at d0702000 (32-bit, non-prefetchable) [size=4K] I/O ports at d020 [size=32] Memory at d0701000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 2 Kernel driver in use: serial
setserial -g /dev/ttyS* shows this:
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4 /dev/ttyS1, UART: 16950/954, Port: 0xd040, IRQ: 17 /dev/ttyS2, UART: 16950/954, Port: 0xd048, IRQ: 17 /dev/ttyS3, UART: 16950/954, Port: 0xd050, IRQ: 17
But, in virt-manage, when I try to add a serial device to the guest as the physical character device /dev/ttyS1 I get this error and the device is not added.
XML error: unknown device type
Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/addhardware.py", line 1026, in add_device self.vm.attach_device(self._dev) File "/usr/share/virt-manager/virtManager/domain.py", line 698, in attach_device self._backend.attachDevice(devxml) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 400, in attachDevice if ret == -1: raise libvirtError ('virDomainAttachDevice() failed', dom=self) libvirtError: XML error: unknown device type
We wish to have at least two, preferably three, andf ideally all four, serial ports enabled on the virtual guest. Does anyone know how this is accomplished?
Hi James,
You should try to make a PCI pass-through for your multiport serial card in virt-manager. Although I haven't tried this kind of configuration, I think that this should be the right way to make such setup. You'll need driver for this PCI card within your guest OS.
On 01/31/2012 08:01 PM, James B. Byrne wrote:
CentOS-6.2
We have a dedicated CentOS-5.7 host used for fax reception and transmission that we wish to move to a CentOS-6.2 virtual guest instance. The CentOS-6.2 virtual host has a 4-port serial card installed.
lspci -v tshows this this:
03:00.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 0 (Uart) (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd Device 0000 Flags: medium devsel, IRQ 17 I/O ports at d040 [size=32] Memory at d0702000 (32-bit, non-prefetchable) [size=4K] I/O ports at d020 [size=32] Memory at d0701000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 2 Kernel driver in use: serial
setserial -g /dev/ttyS* shows this:
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4 /dev/ttyS1, UART: 16950/954, Port: 0xd040, IRQ: 17 /dev/ttyS2, UART: 16950/954, Port: 0xd048, IRQ: 17 /dev/ttyS3, UART: 16950/954, Port: 0xd050, IRQ: 17
But, in virt-manage, when I try to add a serial device to the guest as the physical character device /dev/ttyS1 I get this error and the device is not added.
XML error: unknown device type
Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/addhardware.py", line 1026, in add_device self.vm.attach_device(self._dev) File "/usr/share/virt-manager/virtManager/domain.py", line 698, in attach_device self._backend.attachDevice(devxml) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 400, in attachDevice if ret == -1: raise libvirtError ('virDomainAttachDevice() failed', dom=self) libvirtError: XML error: unknown device type
We wish to have at least two, preferably three, andf ideally all four, serial ports enabled on the virtual guest. Does anyone know how this is accomplished?
buenas a todos
una pregunta tengo que hacer una videoconfirecia publica donde se compartiran videos, mi problema es que el audio del video no se comparte como en striming y necesito eso, saben que cliente si con asterix o openmeeting se puede hacer eso???? o con cual herramiente se puede?? gracias de antemano
saludos a todos
On Tue, 2012-01-31 at 14:01 -0500, James B. Byrne wrote:
CentOS-6.2
We have a dedicated CentOS-5.7 host used for fax reception and transmission that we wish to move to a CentOS-6.2 virtual guest instance. The CentOS-6.2 virtual host has a 4-port serial card installed.
Consider replacing your multi-serial port card with a VoIP analog gateway and use a pre-rolled Asterisk with virtual faxmodems, like Elastix. Just make sure your codec is high enough quality. We used to receive faxes using a dedicated Linux box with a Comtrol Rocketport and an USRobotics MP8. We Converted to SIP trunks and managed to get our faxes in the SIP trunks, as well.
This will remove the PCI pass-through from the equation.
-
Ed Heron -
James B. Byrne -
Mario Villela -
Nenad Opsenica