Clean Installation of F5OS-A on rSeries After Drive Erasure or Console Loss

The Linux command in your guide:

dd if=<iso-image> of=/dev/sda bs=1M oflag=sync status=progress

writes the F5OS-A ISO image directly to a USB device in raw mode, creating a bootable USB.

Windows does not have a native dd command, but there are several equivalents.

1. Recommended (Windows GUI) – Rufus

This is the simplest and most commonly used tool for creating bootable USB drives in Windows.

Steps

1. Download and open Rufus.

2. Insert the USB drive.

3. In Device, select your USB drive.

4. Click SELECT and choose the F5OS-A ISO file.

5. Leave default settings (usually fine).

6. Click START.

Rufus will write the ISO to the USB in a way equivalent to the Linux dd process.

Why it's preferred

• Very reliable for bootable media

• Shows progress and errors

• Prevents selecting the wrong disk

2. Command-line Equivalent – Win32 Disk Imager

This behaves very similarly to dd.

Steps

1. Install Win32 Disk Imager.

2. Insert USB drive.

3. Select the ISO file.

4. Choose the correct device (e.g., E:).

5. Click Write.

Internally this performs a raw block write, similar to dd.

3. True dd on Windows – Cygwin or Windows Subsystem for Linux

If you want the exact same command syntax, install WSL or Cygwin.

Example in WSL:

sudo dd if=F5OS-A-1.8.0.iso of=/dev/sdX bs=1M status=progress

Where /dev/sdX is the USB device.