How to create a local repository in your sNow! system

To be able to install from a local Centos DVD image, follow these instructions to download and copy the installation files to a suitable location:

mkdir /sNow/common/CentOS-7-1708
cd /tmp
wget wget http://mirror.tedra.es/CentOS/7/isos/x86_64/CentOS-7-x86_64-DVD-1708.iso
mount -o loop /tmp/CentOS-7-x86_64-DVD-1708.iso /mnt
cp -pr /mnt/* /sNow/common/CentOS-7-1708
umount /mnt
rm /tmp/CentOS-7-x86_64-DVD-1611.iso

Then modify the install_repo in the json node file by:

snow set node bbgn[001-018] --install_repo nfs:<NFS_SERVER_IP>:/sNow/common/CentOS-7-1708

In many cases you will also need additional repositories, like EPEL, or a site specific RPM repo. In order to accommodate these requirements you will need native CentOS tools.

Install the yum-utils and createrepo packages

yum install yum-utils createrepo -y

Install the required repos to syncronize with your local shared file system:

rpm -Uvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-<VERSION>.noarch.rpm

Use contrib scripts available in /sNow/snow-tools/contrib/repo_sync Setup the LOCALREPODIR variable inside the script and run it to update the CentOS repo.

• sync-centos-official.sh (syncronize official CentOS repo)
• sync-centos-epel.sh (syncronize EPEL CentOS repo)
• sync-centos-hpcnow.sh (syncronize HPCNOw! CentOS repo)
• sync-centos-local.sh (create your custom repo)