[Xen-users] cannot enable sound on domU (centos5.1) and cannot change virbr0 bridge to xenbr0 bridge

["Eric Jansen" <eric@xxxxxxxxxxxxxx>]

Hi all,

my dom0 is centos5.2 and domU paravirtualized is centos5.1
I can play sound on dom0 but not in domU (name: gasphar), moreover I use wifi as my inet connection and on installing domU cento5.1, I used virt-manager. 
I know that libvirtd made virbr0 and when changing to xenbr0, I cannot connect to internet but ssh to dom0 is fine!
so how do I enable sound device on domU and changing to xenbr0?
so please examine and analyze my case:

Thank you before

[root@wing godwing]# cat /etc/xen/gasphar 
name = "gasphar"
uuid = "962ba8b8-fd4a-f8e0-bccd-780477e76585"
maxmem = 750
memory = 750
vcpus = 1
bootloader = "/usr/bin/pygrub"
kernel = "/var/lib/xen/boot_kernel.JZwk9P"
ramdisk = "/var/lib/xen/boot_ramdisk.Bu59SS"
extra = "ro root=LABEL=/ rhgb quiet"
>>
>vfb = [ "type=vnc,vncdisplay=1,keymap=en-us" ]
disk = [ "tap:aio:/vm/xen/gasphar.img,xvda,w" ]
vif = [ "mac=00:16:3e:35:57:93,bridge=virbr0,script=vif-bridge" ]

[root@wing godwing]# /sbin/lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)

[root@wing godwing]# /sbin/ifconfig 
ath0      Link encap:Ethernet  HWaddr 00:15:AF:1E:13:E5  
          inet addr:192.168.200.102  Bcast:192.168.200.255  Mask:255.255.255.0
          inet6 addr: fe80::215:afff:fe1e:13e5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:25806 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12744 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:20572092 (19.6 MiB)  TX bytes:2261705 (2.1 MiB)

eth0      Link encap:Ethernet  HWaddr 00:19:DB:38:95:B4  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:7517 (7.3 KiB)

eth1      Link encap:Ethernet  HWaddr 00:17:3F:0A:7A:26  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:18 Base address:0xc000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:5589 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5589 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7747278 (7.3 MiB)  TX bytes:7747278 (7.3 MiB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:16 Base address:0xe000 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:23 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7517 (7.3 KiB)  TX bytes:0 (0.0 b)

vif1.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:53 errors:0 dropped:0 overruns:0 frame:0
          TX packets:276 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32 
          RX bytes:9636 (9.4 KiB)  TX bytes:15177 (14.8 KiB)

virbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:43 errors:0 dropped:0 overruns:0 frame:0
          TX packets:49 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7940 (7.7 KiB)  TX bytes:10518 (10.2 KiB)

wifi0     Link encap:UNSPEC  HWaddr 00-15-AF-1E-13-E5-38-27-00-00-00-00-00-00-00-00  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:65134 errors:0 dropped:0 overruns:0 frame:649
          TX packets:14371 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:195 
          RX bytes:17820381 (16.9 MiB)  TX bytes:2879567 (2.7 MiB)
          Interrupt:17 

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:23 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7195 (7.0 KiB)  TX bytes:0 (0.0 b)

[root@wing godwing]# /sbin/ip route show
192.168.200.0/24 dev ath0  proto kernel  scope link  src 192.168.200.102 
192.168.122.0/24 dev virbr0  proto kernel  scope link  src 192.168.122.1 
default via 192.168.200.1 dev ath0 

[root@wing godwing]# /usr/sbin/brctl show
bridge name     bridge id               STP enabled     interfaces
virbr0          8000.feffffffffff       yes             vif1.0
xenbr0          8000.feffffffffff       no              peth0
                                                        vif0.0
[root@wing godwing]# /sbin/route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.200.0   0.0.0.0         255.255.255.0   U     0      0        0 ath0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
0.0.0.0         192.168.200.1   0.0.0.0         UG    0      0        0 ath0


-- 
Eric Jansen
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