It seems like kickstart is what you are looking for. I have done this heavily the past few months. I have created iso, pxe boot, and created custom usb flash drives. The iso method works for my on my ESXi host VMs, the USB one needed a boot cd to test on my ESXi host that later transferred the boot process to the USB. I have done some testing on EFI vs BIOS boot on physical hardware. I have not resolved all my problems with EFI but most BIOS installed worked without any problems. Another problem I have had was physical boxes with only EFI and USB3 only ports, CentOS 7.7 was problematic, my fix was to boot off a USB and point to a web server that had. In the end my goal is to make it easier for my Windows friends to get in to Linux by providing a USB flash drive that builds a server for them, I was able to kickstart build popular packages without Docker Some of the native packages I had were * plex * zoneminder * homeassistant * DNS/DHCP with DoH support Here is a video of a workstion kickstart on a USB flash drive https://www.youtube.com/watch?v=H4JuA3E2VG8 Is this what you were trying to do? LA On 5/15/2020 7:24 AM, Xinhuan Zheng wrote: > Dear Earl Ramirez, > >> I created a custom ISO a couple of years ago [0], you can use it as >> your base of one of the following links[1-4], should be sufficient to >> get you started. >> [0] https://github.com/EarlRamirez/snipeit_iso > In above github project, in https://github.com/EarlRamirez/snipeit_iso/blob/master/isolinux/grub.conf file, there is ‘@‘ symbol for splashimage, and for kernel, @KERNELPATH@, @ROOT@, etc. > > Will those be replaced by actual values? Where do actual values come from? How does actual values substitute those variables? > > Thanks again, > > - Xinhuan > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos