How to install Yum server in redhat 7/centos7

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Issue

  • How to set up yum repository to use locally-mounted DVD with Red Hat Enterprise Linux (RHEL) 7
  • Would like to upgrade server from RHEL 7.x to RHEL 7.y
  • Have a secure environment that will never be connected to the internet, but still needs to be updated
  • Way to update the packages on server, with no satellite server and servers disconnected from internet
  • Offline patches for Red Hat systems
  • How do I create a local repository in RHEL 7?

Resolution

Please note: If the system is registered to Red Hat Network, yum can be run with the --noplugins option to prevent it from connecting to RHN. The safer option would be to unregister the system to avoid updating to the latest release.

1. Mount the RHEL 7 installation ISO to a directory like /mnt, e.g.
# mount -o loop RHEL7.1.iso /mnt


If you use DVD media , you can mount like below.


# mount /dev/sr0  /mnt 


2.Copy the media.repo file from the root of the mounted directory to /etc/yum.repos.d/ and set the permissions to something sane, e.g.:


# cp /mnt/media.repo /etc/yum.repos.d/rhel7dvd.repo


# chmod 644 /etc/yum.repos.d/rhel7dvd.repo  



3.Edit the new repo file, changing the gpgcheck=0 setting to 1 and adding the following 3 lines


enabled=1
baseurl=file:///mnt/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release


In the end, the new repo file could look like the following (though the mediaid will be different depending on the version of RHEL):


[InstallMedia]
name=DVD for Red Hat Enterprise Linux 7.1 Server
mediaid=1359576196.686790
metadata_expire=-1
gpgcheck=1
cost=500
enabled=1
baseurl=file:///mnt/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release  


4.clear the related caches by yum clean all and subscription-manager clean once







# yum clean all
# subscription-manager clean 


5. check whether you can get the packages list from the DVD repo 




# yum  --noplugins list 




6.if no problem , you will update


# yum  --noplugins update


Hey This is the simple way to do that. Let's try, facing any problem comment below. I will get back to you soon. 





































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