More and more frequently, we can meet the need to install an OS (Red Hat or Fedora) on a physical server without DVD drive.
In these cases from the DVD ISO we can prepare a USB flash drive to perform a network installation.
The steps are:
- We mount the iso with:
mount -o loop DVD.iso /mnt
- Assuming that the pendrive you have clicked on /dev/sdd, copy the image (eye that will erase everything you have):
dd if=/mnt/images/efidisk.img of=/dev/sdd
- Umount the iso:
We have the pendrive ready to start.