CentOS 7 5 Build 1804 ISO and CentOS 6 10 ISO

Centos-8-minimalA pure bash script to create minimal installation ISO image together with additional packages, leveraging one of official CentOS 8 ISO distribution.This will create an ISO image in the order of workflow shown below:Rerefence ISO will be mounted (to "mtemp/" in working folder).An ISO template will be created (to "image/" in working folder).Essentials (isolinux, EFI, boot images etc) will be copied from reference ISO as it is.Template files will be re-constructed and (re)placed on ISO template.Dependencies for "core" and "additional" packages will be scanned and a resulting package list will be created.Required packages (RPM files) will be downloaded in this phase if it is not downloaded yet and will be added into ISO template.A copy of newly downloaded RPM file will be added into "rpms/" in working folder for later use to avoid re-downloading.A repository (and metadata information) will be created under ISO template to use packages added.ISO image will be created using ISO template that prepared in above steps.Reference ISO will be unmounted.Hence, there are two main parts of this project:Script itself and template files as essentials (bootstrap.sh and templ_* files explained in Footnotes section)An additional package list to install during OS installation (packages.txt).Running in DockerRequires Docker & Internet ConnectionYou can build the Dockerfile here and run it with a sample command. Note that to retrieve your ISO after the container has finished creation, you must specify a mount point at /mnt during the container's execution in order to retrieve the file. Additionally, privileged execution is required by the container to mount the ISO during the recreation process.Example: mkdir ./iso-out && docker build -t centos-8-minimal && docker run --privileged -v ./iso-out:/mnt centos-8-minimalRequirementsCentOS 8You can run script on CentOS 8 only (since it depends on CentOS 8 utilities).Some additional packages needs to be installed in order to run the script. Those can be installed by using the command below: yum -y install yum-utils createrepo syslinux genisoimage isomd5sum bzip2 curl fileOne of the official ISO image of CentOS 8 distribution. Place it to same folder with the script. CentOS-8.X.XXXX-x86_64-boot.iso CentOS-8.X.XXXX-x86_64-dvd1.isoSynopsisBasic usage of the script:"># ./bootstrap.sh Usage: ./bootstrap.sh Alternative usage for each step (in same workflow order) and usage for some functions: [package ..] rpmurl [package ..] rpmdownload [package ..] fulldeps "># ./bootstrap.sh stepUsage: ./bootstrap.sh step ..Workflow steps: isomount createtemplate scandeps createrepo createiso isounmountSome usefull functions: rpmname [package ..] rpmurl [package ..] rpmdownload [package ..] fulldeps UsageYou can change the content of "packages.txt" if you wish and then simply run following command:Script will continue to use the ISO template resource (image/) created at the first run on consequent runs. If you did changes on anywhere, you should "force" it to start job from the scratch by issuing following command;# ./bootstrap.sh run forceAbove

If you don’t want to install around 4GB or 9.5GB ISO file of CentOS 7 then, use the 900 MB ISO image to install the minimal version with only the base package on your server.On one hand, where CentOS 8 Linux will stop getting further updates in December of this year, CentOS 7 Linux still has a long time to reach the end of its life that is stipulated in 2024. Thus, if you want to start with this server Linux distro then still you have enough time, and here will let you know how to install CentOS 7 minimal version on Server, PC, or VirtualBox.Step by Step CentOS 7 Minimal server installation on PC or VertiuaBox1. Download from the index of CentOS 7 Minimal ISO 64-bitThe option to download the minimal ISO of this server is available on CentOS 7 official index mirror page along with the full-fledged ISO and Net-installer version. Here is the official mirror links page, visit and select any of the available ones. After opening any link select the minimal version to download.First, we prepare or set CentOS 7 minimal ISO as an installation medium. Go with as per your system…2. CentOS 7 PC or Server installationIf you are planning to install CentOS 7 on a PC, laptop, or server machine then you need a bootable USB that contains its installation files. Thus, follow the below steps for Windows or Linux. For more details, you can see: How to install balenaEtcher on LinuxHere we are using Etcher that is available for macOS, Windows, and Linux. The installation of this software is any regular software just double click on its setup, even for Linux distros.Plug USB drive to the systemOpen Etcher bootable USB makerSelect the ISO image and then the USB stick that you want to useFinally, click on the Flash button.3. Create VirtualBox VMThose who want to install CentOS 7 minimal version on VirtualBox, first need to create its VM and use its ISO files as the booting medium. Here are the steps to follow.Open VirtualBoxClick on the New icon and then give some name to your machine. Select Type Linux and version– Redhat 64 bit.Assign the amount of RAM you want to use, 2GB will be good.Create a Virtual Hard disk. Leave all the default options as it is, just simply clicks on the Next button two times.At the “File location and size” set the disk to 20 GB or more as per your purpose of installing this Linux server.4. Set ISO as a bootable medium For PC or laptop: Insert the bootable USB you have created and restart your system to boot with it.For VirtualBox: Once you have created the virtual machine, select

PM What VMware product and version?What Host OS product and version?What Guest OS product and version?How is the Guest's Virtual Network Adapter configured in its Settings? NAT, Host-Only or Bridged? (Based on the IP Addresses I assume it's not Bridged)If you were to run two separately created VM's not one copied to the other and just using defaults and no editing anything and on the same Subnet are they able to ping each other? 4. RE: On 2 CentOS VMware machines, how can I get 1 machine to recognize the IP of the other machine? Posted Jun 21, 2013 03:10 PM Hey WoodyZ,Thanks for the quick follow-up questions (and sorry - I should've thought of providing these anyway)!VMware product and version: VMware Workstation 9.0.2 build-1031769Host OS: Windows 7 Pro Service Pack 1, 16GB Memory (15.7GB Usable), 64-bit Operating System (CPU: Intel Core i7-3720QM CPU @ 2.60 GHz)Guest OS: Centos 6.4 base (the folder containing this guest OS I received from a coworker - who already set up a 6-machine cluster - has many files, including about 12 virtual disk files)Guest Virtual Network Adapter says "NAT". When I click on that in the VM window (but before I choose "power on", it shows options like the checkbox for "connect at power on" and the radio button selected is "NAT: Used to share the host's IP address".I'm not sure what would happen if I were to run two separately created VMs (not one copied to the other) because (1) the iso images I was referred to at the mirror site all say that they need to be burned to a CD (which I'm trying to avoid); and (2) the "minimal install" iso file download is estimating an almost 2 hour download time (note: I've started the download anyway but I'm hoping I can get some answer before the download completes - but if I don't get an answer, I'll let you know how far I get with trying a non-copied image).Thanks again! 5. RE: On 2 CentOS VMware machines, how can I get 1 machine to recognize the IP of the other machine? Posted Jun 21, 2013 03:55 PM First of all you do not need to burn an ISO Image to optical media to install it into a VM as it can be installed directly from ISO Image.Secondly for testing purpose you do not need to actually install an OS, just use a Linux Live OS ISO Image like Tiny Core Linux to test with. The images are small, 12 MB for TinyCore.Create two Other Linux VM's, not using Easy Install, and just assign the ISO Image to both and boot both VM's. Then in a Terminal ifconfig to get each