Am Sonntag, den 18.02.2007, 04:50 +0000 schrieb Karanbir Singh: > Les Mikesell wrote: > > The concern it more general - more about unpredictable differences. > > Having seen a difference in what the hwaddr setting does even within a > > version, I wouldn't count on it to work across versions without testing > > it first. > > Absolutely, and things get even murkier with Virtualised Interfaces and > VM's where there is sometimes no real relation to the MAC Addr at all! I did not check the other VMMs, but at least Xen can configure the guest's MACs, for example vif = [ 'mac=FE:FD:00:DE:AD:04, bridge=br0' ] So you could simulate the remote upgrade within a local VM using identical HWADDRs. Of course that would not solve probs with other HW (RAID, NIC-driver). /nils.