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?