On 01/30/2012 04:51 PM, Cong Wang wrote: > On 01/30/2012 04:51 PM, Dave Young wrote: >> On 01/30/2012 04:33 PM, Cong Wang wrote: >> >>> On Mon, 30 Jan 2012 at 06:43 GMT, Dave Young<dyoung@xxxxxxxxxx> wrote: >>>> Current dracut network only will be setup when netroot is used. But >>>> there are >>>> some cases we need network even without netroot. For example kdump >>>> will need >>>> copy vmcore to remote machine via scp or nfs mount. OTOH, if we use >>>> dracut as >>>> a recovery system the network is helpful even root is not a network >>>> device. >>>> >>>> This implementation is based on the manually bring up method. Here >>>> add a kernel >>>> cmdline argument rd.neednet. If rd.neednet is set dracut will bring >>>> up network >>>> with ifup $INTERFACE -m. If netroot is used we still keep original >>>> behavior. >>>> >>> >>> I don't think we really need to introduce a new cmdline, I think we >>> can re-use ip= cmdline. Currently, if ip= is specified but netroot is >>> not, ip= will be ignored. We can change this, let dracut bring up >>> network as long as we have ip=, even we don't have netroot. >> >> >> For netroot case it is supported as well for no ip= or other network >> cmdline, please see the net-genrules.sh code > > > Irrelevant. > >> >> We will also setup network when rd.neednet=1 in case no special ip= >> provided for convenience. >> > > With rd.neednet=1 but without ip=, how can you know which nic we need to > bring up? current behavior of net-genrule.sh is below: # Default: We don't know the interface to use, handle all It will be ok and convenient at least when we have only one nic > -- > To unsubscribe from this list: send the line "unsubscribe initramfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Thanks Dave -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
