Linux configures local Yum source, domestic Yum source and EPEL source

Philosophy of life 2020-11-09 17:44:31
linux configures local yum source


One . Configure local yum Source

1. mount ISO Mirror image

mount -o loop /mnt/yum-iso/CentOS-7-x86_64-DVD-1611.iso /mnt/cdrom

2. To configure yum Source file

#iso.repo Must be .repo ending
[root@node5 ~]# cat /etc/yum.repos.d/iso.repo
[iso]
name=iso
baseurl=file:///mnt/cdrom
enable=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
# Clear the system of all yum cache
[root@node5 yum.repos.d]# yum clean all
# Generate yum cache
[root@node5 yum.repos.d]# yum makecache
# notes :
[iso] #yum The name of the source , Is unique on this server , Used to distinguish the different yum Source
name= iso # Yes yum Source description information
baseurl=file:///mnt/cdrom #yum The path of the source , It can also be FTP(ftp://...)、HTTP(http://...)、 Local (file:/// The location of the CD mount directory )
enabled=1 # by 1, Means to enable yum Source ;0 To disable
gpgcheck=0 # by 1, Using public key verification rpm The correctness of the package ;0 For not checking
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 # Specify to proceed rpm Verified public key file address

3. Set up auto mount after power on iso Image file

# stay /etc/fstab In file , Add on last line
[root@node5 ~]# cat /etc/fstab
/dev/VolGroup00/LogVol00 /                    ext3    defaults        1 1
LABEL=/boot             /boot              ext3    defaults        1 2
tmpfs                   /dev/shm             tmpfs   defaults        0 0
devpts                  /dev/pts              devpts  gid=5,mode=620  0 0
sysfs                   /sys                  sysfs   defaults        0 0
proc                    /proc                 proc    defaults        0 0
/dev/VolGroup00/LogVol01 swap                 swap    defaults       0 0
/mnt/yum-iso/CentOS-7-x86_64-DVD-1611.iso    /mnt/cdrom           iso9660  loop           0 0

Two . Configure domestic yum The source and epel Source

1. First, back up the original repo file

[root@node5 ~]# cd /etc/yum.repos.d/
[root@node5 yum.repos.d]# mkdir repo_bak
[root@node5 yum.repos.d]# mv *.repo repo_bak/
[root@node5 yum.repos.d]# ls
repo_bak

2. Download from the domestic image repo file

[root@node5 yum.repos.d]# wget http://mirrors.aliyun.com/repo/Centos-7.repo
[root@node5 yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
[root@node5 yum.repos.d]# ls
CentOS7-Base-163.repo Centos-7.repo repo_bak
# notes :Centos-7.repo There is a sentence in the document :baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
#$releasever Indicates the version number of the system , have access to cat /etc/centos-release View version number
#[root@node5 yum.repos.d]# cat /etc/centos-release
#CentOS Linux release 7.4.1708 (Core)
#$basearch Represents the type of processor , such as x86_64
# Clear the system of all yum cache
[root@node5 yum.repos.d]# yum clean all
# Generate yum cache
[root@node5 yum.repos.d]# yum makecache

3. install epel Source

# Install official epel Source
[root@node5 yum.repos.d]# yum install -y epel-release
[root@node5 yum.repos.d]# ls
CentOS7-Base-163.repo Centos-7.repo epel.repo epel-testing.repo repo_bak
# Install Ali's epel Source
[root@node5 yum.repos.d]# wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo
[root@node5 yum.repos.d]# yum clean all
[root@node5 yum.repos.d]# yum makecache

4. Check the system available yum The source and all the yum Source

[root@node5 yum.repos.d]# yum repolist enabled
[root@node5 yum.repos.d]# yum repolist all
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