Can't get past "Starting network" during installation from USB

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https://bbs.archlinux.org – I'm trying to do a fresh install of Archlinux on my laptop, following the Beginners Guide. However, I never get to the shell prompt because the installation gets stuck at "Starting network [Busy]".These are steps I followed:- I downloaded the latest Arch ISO.- I wrote it to a usb stick ("Kingston Data Traveler") with "dd if=archlinux.iso of=/dev/sdb"- I put the usb stick into my laptop (HP Pavilion dm1-4139sd), and booted it. I chose "x86_64". Everything seems to go fine, the only warning I get is: "microcode: failed to load file amd-ucode/micr (HowTos)