这是 PXE 安装，之前是 14.04。我将其移至 18.04，大多数事情都正常，但出于某种原因，只有其中一条规则/etc/udev/rules.d/70-persistent-net.rules（由预置脚本自动生成）得到遵守。
/etc/udev/rules.d/70-persistent-net.rules：
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="40:8d:5c:5c:df:ce", ATTR{dev_id}=="0x0", ATTR{type}=="1", NAME="ctrl1"
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="68:05:ca:22:c6:0b", ATTR{dev_id}=="0x0", ATTR{type}=="1", NAME="data1"
/etc/network/interfaces：
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto ctrl1
iface ctrl1 inet dhcp
auto data1
iface data1 inet static
address 10.255.01.13
netmask 255.255.255.240
network 10.255.01.0
broadcast 10.255.01.255
ifconfig 输出：
foo@bar:~# ifconfig
data1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet xx.xx.xx.xx netmask 255.255.255.240 broadcast 10.255.1.255
inet6 fe80::6a05:caff:fe22:c60b prefixlen 64 scopeid 0x20<link>
ether 68:05:ca:22:c6:0b txqueuelen 1000 (Ethernet)
RX packets 123 bytes 10749 (10.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 44 bytes 3772 (3.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17 memory 0xdc040000-dc060000
enp0s31f6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet xx.xx.xx.xx netmask 255.255.255.128 broadcast 192.168.166.255
inet6 fe80::428d:5cff:fe5c:dfce prefixlen 64 scopeid 0x20<link>
ether 40:8d:5c:5c:df:ce txqueuelen 1000 (Ethernet)
RX packets 966 bytes 89471 (89.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 701 bytes 391743 (391.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16 memory 0xdc100000-dc120000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 697 bytes 57332 (57.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 697 bytes 57332 (57.3 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
data1可以，但是ctrl1尚未设置。
有任何想法吗？