Offline Repository Procedure for CentOS 7

This page shows how to configure CentOS packages manager for a system that does not have access to Telcobridges repository (no internet access).

Download TelcoBridges repository

Download the .iso image of TelcoBridges repository on a machine that have access to the system.

http://repo.telcobridges.com/centos/7/isos/x86_64/tb_centos7_x86_64_repo.iso (File size on 2018.06: 7GB)

Upload the .iso file to the "/root" directory of the system with scp or a SFTP tool like FileZilla

Mount the .iso file on your system

# mkdir -p /repo/centos/7
# mount -t iso9660 -o loop /root/tb_centos7_x86_64_repo.iso /repo/centos/7

Add the mount point permanently to the system to make it stay after a reboot.

# cp /etc/fstab /etc/fstab.bak
# echo "/root/tb_centos7_x86_64_repo.iso /repo/centos/7 iso9660 loop 0 0" >> /etc/fstab

Edit the TB-Base.repo file

# vim /etc/yum.repos.d/TB-Base.repo

Change [tb-base] baseurl line to:

baseurl=file:///repo/centos/7/os/$basearch/

# yum clean metadata
# yum update