vmware installs redhat 7.6 operating system

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

1. Download the redhat 7.6 operating system image file

Link : Panpanzwzg

File name: rhel-server-7.6-x86_64-dvd.iso
SHA-256: 60a0be5aeed1f08f2bb7599a578c89ec134b4016cd62a8604b29f15d543a469c

2. Install redhat 7.6 operating system

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Set the password. Note that this password is both the root account password and the user account password.

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Disk 100G

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Custom hardware

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Start the virtual machine

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Select operating system default language

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Software Selection

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Select time zone

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Select Installation Destination

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These partitions are available by default

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Click the lower left corner - Delete all default partitions

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The new mount point will use the following partition scheme(N): Select LVM

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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

Click + in the lower left corner to create a root partition

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Select the file system as EXT4

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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 & HOSTNAME

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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 and the login is successful. The wallpaper is so cool.

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Click Not Listed and enter root

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3. Configure redhat 7.6 operating system

3.1. Configure static IP address and dns

After installing the system, the address is not set by default.

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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=192.168.2.158  #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="308d3cf9-4912-4f86-a793-2fcc353d2b9c"
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="308d3cf9-4912-4f86-a793-2fcc353d2b9c"
DEVICE="ens33"
ONBOOT="yes"
IPADDR=192.168.2.158  #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.

systemctl restart NetworkManager.service

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

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3.2. View disk partitions

 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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3.4. Register the system to the redhat software warehouse

Default source list
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Redhat official yum source cannot be used without registering the system.

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Preparation before registration
https://developers.redhat.com/register Open this website to register a redhat account. Use your account name and password to register the system to redhat.

subscription-manager register --username yourUserName --password yourPassWord --auto-attach

In this case, the registration failed because the network cannot resolve the domain name.
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Another way: use EPEL source

EPEL (Extra Packages for Enterprise Linux) is a package frequently used in Enterprise Linux (RHEL, CentOS) maintained by the Fedora Special Interest Group.

Create epel.repo file

touch /etc/yum.repos.d/epel.repo

Edit the file /etc/yum.repos.d/epel.repo and add the following content

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch/debug
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-7&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1

[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/SRPMS
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-7&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1

Check which sources are activated

 yum repolist all

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Update software source metadata

yum makecache

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Now the configuration is complete and you can play happily.

EPEL software source configuration reference link https://mirrors.tuna.tsinghua.edu.cn/help/epel/