8.4. Preparing a driver update USB drive

You can prepare a driver update on a USB flash drive to perform a driver update during installation.

Prerequisites

You have received the driver update ISO image from Red Hat, your hardware vendor, or a trusted third-party vendor.
You have prepared a USB flash drive with a file system compatible with RHEL to place the driver update ISO on.

Procedure

Connect the USB drive to your computer and find out what device it was assigned by the system. To find the assigned device, you can inspect the output of dmesg or lsblk -o +MOUNTPOINT command.
Find out if the drive has been mounted and what the mount point is (based on the output of lsblk command). If it’s not mounted, mount it manually:
1. Optional: Create a mount point directory:
  mkdir /path/to/mountpoint
2. Mount the USB device’s partition in the mount point directory. The following example assumes that the device’s partition that will be used for storing the driver update ISO file is /dev/sdb1 and the mount point is /mnt/usbdrive:
  sudo mount /dev/sdb1 /mnt/usbdrive
Copy the driver update ISO file on the USB drive.
The following example assumes that the mount point is /mnt/usbdrive and the ISO file’s location is /home/user/driverdisk.iso:
```
sudo cp /home/user/driverdisk.iso /mnt/usbdrive
```
Unmount the USB device by using the umount command.
```
sudo umount /mnt/usbdrive
```