CentOS 7 的網路卡代號捨棄了原本熟悉的 ethx
# ls -l /etc/sysconfig/network-scripts/ifcfg-*
-rw-r–r–. 1 root root 326 7月 10 19:24 /etc/sysconfig/network-scripts/ifcfg-eno16777736
-rw-r–r–. 1 root root 254 4月 2 23:30 /etc/sysconfig/network-scripts/ifcfg-lo
網路卡設定
# cat /etc/sysconfig/network-scripts/ifcfg-eno16777736
HWADDR=”00:0C:29:A6:22:15″
TYPE=”Ethernet”
BOOTPROTO=”dhcp”
DEFROUTE=”yes”
PEERDNS=”yes”
PEERROUTES=”yes”
IPV4_FAILURE_FATAL=”no”
IPV6INIT=”yes”
IPV6_AUTOCONF=”yes”
IPV6_DEFROUTE=”yes”
IPV6_PEERDNS=”yes”
IPV6_PEERROUTES=”yes”
IPV6_FAILURE_FATAL=”no”
NAME=”eno16777736″
UUID=”7e2c54c0-a09d-45ca-a074-7ed5d5d8ed32″
ONBOOT=”yes”[@more@]修改方式：參考 Change default network name to old “eth0″ on RHEL 7 / Fedora 19 above | eSuarez Notes
修改 /etc/default/grub
在 GRUB_CMDLINE_LINUX 後加上 net.ifnames=0 biosdevname=0
# vim /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=”$(sed ‘s, release .*$,,g’ /etc/system-release)”
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT=”console”
GRUB_CMDLINE_LINUX=”rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=centos/root crashkernel=auto vconsole.keymap=us rhgb quiet net.ifnames=0 biosdevname=0“
GRUB_DISABLE_RECOVERY=”true”
產生新的 grub 設定檔
# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file …
Found linux image: /boot/vmlinuz-3.10.0-123.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-123.el7.x86_64.img
Warning: Please don’t use old title `CentOS Linux, with Linux 3.10.0-123.el7.x86_64′ for GRUB_DEFAULT, use `Advanced options for CentOS Linux>CentOS Linux, with Linux 3.10.0-123.el7.x86_64′ (for versions before 2.00) or `gnulinux-advanced-caeda11c-71b9-4cc4-961b-b4541b247804>gnulinux-3.10.0-123.el7.x86_64-advanced-caeda11c-71b9-4cc4-961b-b4541b247804′ (for 2.00 or later)
Found linux image: /boot/vmlinuz-0-rescue-07f9be0c0fc843ce885a7539150c8e55
Found initrd image: /boot/initramfs-0-rescue-07f9be0c0fc843ce885a7539150c8e55.img
done
直接把 ifcfg-enoxxx 改成 ifcfg-eth0
# mv /etc/sysconfig/network-scripts/ifcfg-eno16777736 /etc/sysconfig/network-scripts/ifcfg-eth0
修改網路卡代號
# sed -i ‘s/eno16777736/eth0/g’ /etc/sysconfig/network-scripts/ifcfg-eth0
NAME=eth0
DEVICE=eth0重新開機
# sync;sync;sync;sync;shutdown -r
網路卡代號已更改
# ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.109 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::20c:29ff:fea6:2215 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:a6:22:15 txqueuelen 1000 (Ethernet)
RX packets 128 bytes 12595 (12.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 125 bytes 16864 (16.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0