[et-mgmt-tools] [PATCH] [RESEND]Check the making domain's mac address(part 2)
fj7716hz at aa.jp.fujitsu.com
Wed Mar 28 08:44:14 UTC 2007
Hugh Brock wrote:
> Actually now that I have thought some more about this, I don't think we
> want to apply it at all.
> The current semantics of the --mac flag are as follows:
> 1. If --mac is specified, attempt to use that address. If it conflicts
> with an in-use address, fail with an error
> 2. If --mac is not specified, choose an unused mac address at random.
> You would like to add the case wherein if --mac is specified and
> conflicts with an existing mac address, a user can override the
> conflict. However, we want operations with virt-install to be scriptable
> -- that is, we do not ever want the script to halt waiting for input
> unless it is obviously being run interactively. This means that, since a
> mac address is never entered at a prompt, we can't put up a warning if
> it conflicts. And I don't think we want to change the semantics to
> always prompt for a mac address if it is not specified, since most users
> aren't going to care what the mac address is anyway.
> One way we could address the underlying problem is to change the
> mac-address conflict checking code in VirtualNetworkInterface.setup() so
> that it prints a warning to the console or logs it, but continues with
> the guest creation. I'm fine with this behavior, since it seems
> reasonable to me that an installer might want to have multiple inactive
> guests with the same mac address. Another alternative would be to fail
> if there is an active guest with the same mac address, but only print a
> warning (and continue) if there is an inactive guest with the same mac
> address. I would take a patch for either scenario.
I agree with your suggestion.
I rewrite a patch that the mac-address conflict checking code in
VirtualNetworkInterface.setup() so that it prints a warning to
the stderr and logs.
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