On 01/09/15 07:46, Robert Mustacchi wrote: > On 8/30/15 23:45 , Hadret wrote: >> Hi Tom, >> >> a while back I had similar issue. Those images are prepared with SDC/Joyent >> cloud in mind and it is my understanding, that dhcp is a default and >> expected behavior. That being said -- last time I was establishing CentOS >> from the image provided by Joyent, there were some scripts running from >> /etc/rc.local that were setting up (and overwriting my changes) networking. >> Check it out. > This sounds like a bug in the image. Christopher is this something that > you could take a look at? > > Thanks, > Robert
Hi Robert, I can confirm that the /etc/rc.local script in the CentOS-7 image is clobbering the files. Is it safe to remove that script? AFAIK this wasn't an issue with earlier CentOS images. I may take a look at the scripting on an earlier image for comparison. Thanks, Tom >> On Mon, Aug 31, 2015 at 8:05 AM Tom Robinson <[email protected]> >> wrote: >> >>> Hi, >>> >>> I'm not sure if this is a CentOS-7 or SmartOS issue and it is driving me >>> batty. >>> >>> I've installed three KVM CentOS-7 images (using image >>> d8e65ea2-1f3e-11e5-8557-6b43e0a88b38) but I >>> can't get them configured with fixed IPv4 address in the guest. >>> >>> My understanding is that to assign a static IP within the guest itself >>> (i.e. no DHCP magic from QEMU >>> all networking to be configured in the guest), I should set the guest's >>> JSON "ip" property to >>> "dhcp" and configure the network in the guest. I have tried this and it >>> fails, clobbering my network >>> configs in the guest. >>> >>> For example, the nics are configured in JSON like this: >>> >>> vmadm get 58a4e021-bc65-4eb8-8f2f-d12b82c3946d | json nics >>> [ >>> { >>> "interface": "net0", >>> "mac": "62:3c:de:b7:52:76", >>> "nic_tag": "vswitch6", >>> "ip": "dhcp", >>> "model": "virtio", >>> "primary": true >>> } >>> ] >>> >>> And in the guest I've configured the >>> /etc/sysconfig/network-scripts/ifcfg-eth0 file with a fixed IP >>> setting: >>> >>> DEVICE=eth0 >>> TYPE=Ethernet >>> HWADDR=62:3c:de:b7:52:76 >>> ONBOOT=yes >>> BOOTPROTO=static >>> IPADDR=x.x.x.x >>> NETMASK=x.x.x.x >>> >>> Now, every time I start/reboot the guest it clobbers the ifcfg-eth0 file >>> reverting it to just three >>> lines the guest: >>> >>> DEVICE=eth0 >>> ONBOOT=yes >>> BOOTPROTO=dhcp >>> >>> Has anyone experienced this before? Is it a CentOS-7/SmartOS issue or just >>> my own ignorance? >>> >>> Any help is appreciated. >>> >>> Kind regards, >>> Tom >>> >>> -- >>> >>> Tom Robinson >>> IT Manager/System Administrator >>> >>> MoTeC Pty Ltd >>> >>> 121 Merrindale Drive >>> Croydon South >>> 3136 Victoria >>> Australia >>> >>> T: +61 3 9761 5050 >>> +61 3 9761 5051 >>> [email protected] >>> >> >
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