![]() ![]() Create custom ISO image from the working files ![]() Edit the kickstart configuration file further, as needed Copy the kickstart file from the attended CentOS install to the working directory Copy the required files from original installation medium to working directory Create a working directory to compose an unattended installer ISO image Install CentOS attended, configuring things the way you want them This procedure works for creating disk media for legacy BIOS mode booting as well as for UEFI mode booting. The major steps covered in this post are the following: Download official iso image or create a CentOS installer DVD This procedure, however, was tested and verified with a PC running CentOS 7.4 to perform most operations, and a MacOS X 10.9.5 laptop with VirtualBox v5.1.30. It cost hours and a small stash of blank DVD disks to complete this article, because of incomplete documentation and quirks such as the need to preserve volume label name. A significant portion of what I found on the internet did not work. As of CentOS 7 this only works for clean installs. If you need to install CentOS 7 frequently, with the same configuration, build your own DVD media for unattended kickstart installation. ![]()
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February 2023
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