vmware install centos 7.6 operating system

1. Download the centos 7.6 operating system image file
2. Install centos 7.6 operating system
3. Configure centos 7.6 operating system

1. Download the centos 7.6 operating system image file

Here is the official download link for version 7.6 released in October 2018 https://vault.centos.org/7.6.1810/isos/x86_64/

The first is HTTP download.
The second is torrent. Downloading through torrent is generally faster.

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File name: CentOS-7-x86_64-DVD-1810.iso
SHA256: 6d44331cc4f6c506c7bbe9feb8468fad6c51a88ca1393ca6b8b486ea04bec3c1

2. Install centos 7.6 operating system

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Enter custom information

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Disk 100G

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Custom hardware

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Start the virtual machine

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Enter the installation interface as follows
Select language

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Select time zone

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Software Selection

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Select Installation Destination

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Disk 100G, use the following partition strategy

mount point	Partition name	Partition size	Partition file system	Equipment type
/	root partition	50G	ext4	LVM
/home	home partition	20G	ext4	LVM
SWAP	SWAP partition	15G	SWAP	LVM
/was	var partition	14G	ext4	LVM
/boot	boot partition	1G	ext4	Stand Partition
biosboot	biosboot partition	2M	BIOS Boot	Stand Partition

The default interface is as follows

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Click on the lower left corner - Delete all partitions

New partition uses LVM
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Click + in the lower left corner to create the first partition /

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Then click + in the lower left corner to create a second partition /home

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Then click + in the lower left corner to create a third partition SWAP

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Then click + in the lower left corner to create the fourth partition /var

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Then click + in the lower left corner to create the fifth partition/boot

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Then click + in the lower left corner to create the sixth partition biosboot

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When adding biosboot, the remaining space is less than 2M and the biosboot partition cannot be added.

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The solution is to shrink the /var partition to 13G first, so that 1G is reserved.

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After adding biosboot, allocate all remaining space to /var

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The remaining 1022.97M space is allocated again to the /var partition

Note that the current remaining available space is displayed in the lower left corner of the page.

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Update the /var partition size again and allocate all remaining space to the /var partition

Scroll down the page and click Update Settings to update the size of the /var partition.

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Now the partition creation is complete.
Click Finish in the upper left corner.

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Click on NETWORK & HOST NAME

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Click Begin Installation

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The first step is to create a custom LVM partition

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Wait for the installation to complete just a moment

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When the following interface appears, the installation is complete.

Click Not Listed
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Enter root

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3. Configure centos 7.6 operating system

3.1. Configure static IP address and dns

After the installation is complete, check the address and the address has not been set.

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cp /etc/sysconfig/network-scripts/ifcfg-ens33  /etc/sysconfig/network-scripts/ifcfg-ens33.bak

Edit network card configuration file

vi /etc/sysconfig/network-scripts/ifcfg-ens33

①Change BOOTPROTO=dhcp to BOOTPROTO=static
②Insert the following content

IPADDR=192.168.2.157  #静态IP地址
NETMASK=255.255.255.0 #掩码
GATEWAY=192.168.2.2   #网关
DNS1=192.168.2.2      #首选DNS
DNS2=114.114.114.114  #备选DNS

Please refer to the following modification process for the network card configuration file.
Before modification

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="dhcp"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="692ce0e9-6f1f-47fd-b082-32f027919802"
DEVICE="ens33"
ONBOOT="yes"

After change

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="static"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="692ce0e9-6f1f-47fd-b082-32f027919802"
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.2.157  #静态IP地址
NETMASK=255.255.255.0 #掩码
GATEWAY=192.168.2.2   #网关
DNS1=192.168.2.2      #首选DNS
DNS2=114.114.114.114  #备选DNS

After the change is completed, the network service makes the change take effect.

/etc/init.d/network restart

After restarting the network service, the IP address and gateway will take effect.

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3.2. View disk partitions

Check the disk partition after installing the system

 df -lTh

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3.3. Check the system version

cat /etc/*release

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Check the kernel version gcc version glibc version
The kernel version is 3.10.0 The gcc version is 4.8.5 The glibc version is 2.17

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View software sources

[root@centos ~]# cat /etc/yum.repos.d/CentOS-
CentOS-Base.repo       CentOS-Debuginfo.repo  CentOS-Media.repo      CentOS-Vault.repo      
CentOS-CR.repo         CentOS-fasttrack.repo  CentOS-Sources.repo    
[root@centos ~]# cat /etc/yum.repos.d/CentOS-Base.repo 
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#released updates 
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[root@centos ~]#

Get software source metadata

yum makecache

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Now the configuration is complete and you can play happily.