Installing Ethereum in centos7

3.

If you set onboot = yes

ifconfig eth0, you can see IP

and the network of the virtual machine is set to bridge,

as shown in the figure:

4. Li Zengliang of Wu'an No.3 middle school has a da Vinci studio in the Third Street brigade. You can find it.

5. Direct VI ifcfg-eth0 to modify it ~!

6. This.. Can you try to install ifup eth0 and forget to click IPv4 and onboot< br /> This.. Can you try to install ifup eth0 and forget to click IPv4 and onboot?

7. 第一种方式
这种方式适合在安装操作系统的时候进行设置，
点击 Tab，打开kernel启动选项，

增加内核参数： net.ifnames=0 biosdevname=0

输入完成之后回车正常安装操作系统就好了
第二种方式
修改网卡配置文件中的 DEVICE= 参数的关于 eth0

[root@ansheng ~]# cd /etc/sysconfig/network-scripts/
[root@ansheng network-scripts]# vi ifcfg-eno16777728
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=eno16777728
UUID=8a3eade8-005c-46df-81f2-6e2598457bac
#DEVICE=eno16777728
DEVICE=eth0
ONBOOT=yes

网卡配置文件名称改为 ifcfg-eth0

[root@ansheng network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0

因 CentOS7 采用 grub2 引导，还需要对 grub2 进行修改，编辑 /etc/default/grub 配置文件，在 GRUB_CMDLINE_LINUX 这个参数后面加入 net.ifnames=0 biosdevname=0

[root@ansheng network-scripts]# vi /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/root rd.lvm.lv=centos/swap rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"

用 grub2-mkconfig 命令重新生成GRUB配置并更新内核

[root@ansheng network-scripts]# grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-
Found initrd image: /boot/initramfs-0-rescue-.img
done

重启系统
[root@ansheng network-scripts]# reboot

重启之后验证网卡名称:
[root@ansheng ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.56.130 netmask 255.255.255.0 broadcast 192.168.56.255
inet6 fe80::20c:29ff:fe6d:d894 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:6d:d8:94 txqueuelen 1000 (Ethernet)
RX packets 27413 bytes 38532163 (36.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 7727 bytes 702194 (685.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

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 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

8. vi /etc/sysconfig/network-scripts/ifcfg-eth0 BOOTPROTO=dhcp

9. More than ten minutes by bus

10. The bus from Neijiang expressway passenger transport center station to Yibin stops at Yibin high-speed railway station
the departure time of Yibin in Neijiang expressway passenger transport center: 8:30 ~ 18:10 (40 ~ 60 minutes for a flight) ticket price: 40 yuan
time: about 1.5 hours
I hope it can help you. I hope it can be adopted by the villagers. Click [satisfied] in the upper right corner.