Am 08.11.2015 um 20:29 schrieb Richard W.M. Jones:
On Sat, Nov 07, 2015 at 05:28:54PM +0000, Christopher wrote:
I recently updated my desktop to f23, and it went smoothly, for the most part. However, it broke my mediatomb server because the NIC changed from em1 to eno1.
Is this something that was expected? It certainly surprised me.
It happened to a bunch of servers when I updated them from F22 to F23. Their NICs changed from p6p1 -> enp3s0. It was annoying because I had to boot each one with a display and keyboard and change the network configuration by hand.
"predictable, stable network interface names" https://wiki.freedesktop.org/www/Software/systemd/PredictableNetworkInterfac...
that is simple to solve forever
* add "net.ifnames=0 biosdevname=0" to your kernel params * get rid of NetworkManager * rename your ethernet-devices in the ifcfg-files based on the MAC * survives yum-upgardes from Fedora 9 to Fedora 23 * nobody needs NM and that other stuff on static configured servers * frankly even with a DHCP wan-interface it works perfectly
the machine below has 16 network-interfaces and the IP is configured via DHCP and after get rid of all the "improvements" no loger troubles ______________________________________
[root@srv-rhsoft:~]$ cat /etc/sysconfig/network-scripts/ifcfg-wan ########################### # WAN (Chello) # ###########################
DEVICE=wan HWADDR=24:be:05:1a:c0:27
TYPE=Ethernet BOOTPROTO=static ONBOOT=yes ARPCHECK=no NM_CONTROLLED=no USERCTL=no IPV6INIT=no MTU=1500 ETHTOOL_OPTS="wol d; -K ${DEVICE} tso on rx on tx on gro on; -G ${DEVICE} rx 2048 tx 2048; -C ${DEVICE} rx-usecs 75" ______________________________________
[root@srv-rhsoft:~]$ cat /etc/systemd/system/network-wan-bridge.service [Unit] Description=Network Internet Bridge After=network.service systemd-networkd.service network-online.target
[Service] Type=forking ExecStartPre=-/usr/sbin/brctl addbr br-wan ExecStartPre=-/usr/sbin/brctl stp br-wan off ExecStartPre=-/usr/sbin/brctl setageing br-wan 600 ExecStartPre=-/usr/sbin/brctl setfd br-wan 5 ExecStartPre=-/usr/sbin/brctl addif br-wan wan ExecStartPre=-/usr/sbin/brctl addif br-wan vmnet1 ExecStartPre=-/usr/sbin/ifconfig br-wan hw ether 00:50:8D:B5:CC:DE up ExecStart=/usr/sbin/dhclient -4 -H srv-rhsoft -q -R subnet-mask,broadcast-address,routers,interface-mtu br-wan ExecStartPost=-/usr/sbin/ifconfig br-wan -multicast -allmulti ExecStartPost=-/usr/sbin/ifconfig vmnet1 0.0.0.0 -multicast -allmulti up ExecStopPost=-/usr/sbin/ifconfig br-wan down ExecStopPost=-/usr/sbin/brctl delbr br-wan
Restart=always RestartSec=1
PrivateTmp=yes NoNewPrivileges=yes CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_NET_RAW
ReadOnlyDirectories=/etc ReadOnlyDirectories=/usr
InaccessibleDirectories=-/mnt InaccessibleDirectories=-/mnt/data