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I usually write my own XML for qemu/virsh VMs, but the idea is to tell the virtual BIOS to boot from the ISO, right? So, when you set up your VM, tell it that the ISO is a CD-ROM, give it an empty file on the host to act like a hard disk to install onto, and set the boot order to try the hard disk, then the CD-ROM. Then boot the VM and follow the screen ...


Changes to grub.cfg is made effective by executing the following command: grub2-mkconfig -o /boot/grub2/grub.cfg


The issue is almost certainly some combination of using a slightly incorrect CDLABEL, grub not being able to mount the iso, the kernel arguments do not match those intended for use with the image, or there is some irregularity with the ISO - I didn't see that specific one on the mirrors. You need to grab the exact label from the isolinux.cfg file that is on ...


I cannot understand why this is giving you so much trouble. Yours looks like another example of an XY problem. A much simpler solution is: Download a CentOS iso from here; Install CentOS from the iso in a new VM, in just about any Hypervisor: for instance, I have just used VirtualBox (make sure you choose vdmk for the disk format when you create the new ...

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