Description of problem:

i've installed a VM on rhel 5.5 server using virt-install
by default the "-M" flag have "rhel5.4.0" which is not true.

the virt-install should recognize on which OS the server is running and set the flag according to the server OS.  


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:

[root@green-vdsb ~]# ps -aux | grep kvm
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
root     12945 66.6  0.1 2289792 25424 ?       Sl   14:24   0:13 /usr/libexec/qemu-kvm -S -M rhel5.4.0 -m 2048 -smp 1 -name RHEVM-HA -uuid 00000000-0000-0000-0000-000000000002 -no-kvm-pit-reinjection -monitor pty -pidfile /var/run/libvirt/qemu//RHEVM-HA.pid -localtime -boot c -drive file=/dev/rhevm-cluster01/rhev-image,if=ide,index=0,boot=on,cache=none -drive file=/home/iso/windows_server_2008_r2.iso,if=ide,media=cdrom,index=2 -net nic,macaddr=00:1a:4a:23:66:fd,vlan=0 -net tap,fd=18,script=,vlan=0,ifname=vnet0 -serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 -k en-us
root     13015  0.0  0.0  61160   712 pts/5    R+   14:24   0:00 grep kvm