Dear friend, Today we will see how to create a local repository using a ISO in CentOS 7. I will see you step by step commands and process, so that you can easily create a local repository in your server when you need it.
As you know some time we don’t have internet connection and we need to up-grade some packages or we need to install some packages then we can create a local repository using ISO image and we can install and up-grade package using yum tool.
To create a local repository we will follow these steps:-
- Mount ISO image on CentOS 7.
- Create and configure repository file.
- Clean repository list.
- Check repository list.
- Install packages with yum tool using local repository.
So let’s start step by step process to create a local repository in CentOS 7.
First all we need to be copy our ISO image on our server. You can see here I have copied my ISO image on root directory.
[root@urclouds ~]# pwd /root [root@urclouds ~]# ls -l total 4556820 -rw-r--r--. 1 root root 355 May 5 12:41 1 -rw-------. 1 root root 1225 Apr 9 14:15 anaconda-ks.cfg -rw-r--r--. 1 root root 4470079488 Jan 22 18:10 CentOS-7-x86_64-DVD-1804.iso [root@urclouds ~]#
1. Mount ISO image on CentOS 7.
Now we need to be mount this ISO in /mnt directory. We can use below command to mount this ISO file.
[root@urclouds ~]# mount -o loop CentOS-7-x86_64-DVD-1804.iso /mnt mount: /dev/loop0 is write-protected, mounting read-only [root@urclouds ~]#
We can check our /mnt drive is mounted our not using df -h like below: –
[root@urclouds ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 45G 6.1G 39G 14% / devtmpfs 2.9G 0 2.9G 0% /dev tmpfs 2.9G 0 2.9G 0% /dev/shm tmpfs 2.9G 8.6M 2.9G 1% /run tmpfs 2.9G 0 2.9G 0% /sys/fs/cgroup /dev/sda1 497M 118M 379M 24% /boot tmpfs 581M 0 581M 0% /run/user/0 /dev/loop0 4.2G 4.2G 0 100% /mnt [root@urclouds ~]#
You can see in above our /mnt drive has been successfully mounted.
2. Create and configure repository file.
Now we need to be configure repository file. We can go to /etc/yum.repos.d/ directory and create a centos7.repo with this content. Like below:-
[root@urclouds ~]# cat /etc/yum.repos.d/centos7.repo [CentOS7] name=CentOS7 baseurl=file:///mnt enabled=1 gpgcheck=0 [root@urclouds ~]#
3. Clean repository list.
After the file creation we need to be clean our repository list using below command.
4. Check repository list.
Now we can check our repository list using below command:-
[root@urclouds ~]# yum repolist Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile base: centos.mirror.ate.info epel: epel.besthosting.ua extras: centos.mirror.fr.planethoster.net remi-php73: fr2.rpmfind.net remi-safe: ap.stykers.moe updates: centos.crazyfrogs.org repo id repo name status CentOS7 CentOS7 3,971 base/7/x86_64 CentOS-7 - Base 10,019 *epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 13,216 extras/7/x86_64 CentOS-7 - Extras 409 remi-php73 Remi's PHP 7.3 RPM repository for Enterprise Linux 7 - x86_64 312 remi-safe Safe Remi's RPM repository for Enterprise Linux 7 - x86_64 3,343 updates/7/x86_64 CentOS-7 - Updates 1,982 repolist: 33,252 [root@urclouds ~]#
5. Install packages with yum tool using local repository.
Now we can install packages using our local repository like below:-
[root@urclouds ~]# yum install ntp Loaded plugins: fastestmirror CentOS7 | 3.6 kB 00:00:00 Loading mirror speeds from cached hostfile base: centos.mirror.ate.info epel: epel.besthosting.ua extras: centos.mirror.fr.planethoster.net remi-php73: fr2.rpmfind.net remi-safe: ap.stykers.moe updates: centos.crazyfrogs.org Resolving Dependencies --> Running transaction check ---> Package ntp.x86_64 0:4.2.6p5-28.el7.centos will be installed --> Processing Dependency: ntpdate = 4.2.6p5-28.el7.centos for package: ntp-4.2.6p5-28.el7.centos.x86_64 --> Processing Dependency: libopts.so.25()(64bit) for package: ntp-4.2.6p5-28.el7.centos.x86_64 --> Running transaction check ---> Package autogen-libopts.x86_64 0:5.18-5.el7 will be installed ---> Package ntpdate.x86_64 0:4.2.6p5-28.el7.centos will be installed --> Finished Dependency Resolution Dependencies Resolved ==================================================================================================================================== Package Arch Version Repository Size Installing: ntp x86_64 4.2.6p5-28.el7.centos CentOS7 549 k Installing for dependencies: autogen-libopts x86_64 5.18-5.el7 CentOS7 66 k ntpdate x86_64 4.2.6p5-28.el7.centos CentOS7 86 k Transaction Summary Install 1 Package (+2 Dependent packages) Total download size: 701 k Installed size: 1.6 M Is this ok [y/d/N]: y Downloading packages: Total 32 MB/s | 701 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : autogen-libopts-5.18-5.el7.x86_64 1/3 Installing : ntpdate-4.2.6p5-28.el7.centos.x86_64 2/3 Installing : ntp-4.2.6p5-28.el7.centos.x86_64 3/3 Verifying : ntpdate-4.2.6p5-28.el7.centos.x86_64 1/3 Verifying : autogen-libopts-5.18-5.el7.x86_64 2/3 Verifying : ntp-4.2.6p5-28.el7.centos.x86_64 3/3 Installed: ntp.x86_64 0:4.2.6p5-28.el7.centos Dependency Installed: autogen-libopts.x86_64 0:5.18-5.el7 ntpdate.x86_64 0:4.2.6p5-28.el7.centos Complete! [root@urclouds ~]#
That’s all we have successfully created local repository using ISO image in CentSO 7 server.
You can also Click_Here if you want to know more details about create a local repository.
You can also see this below link, how to configure NTP server and NTP client on CentOS 7
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