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I donwloaded pfsense live cd 2.1.3 and now I want to run pfsense from an usb cdrom drive.

It loads a while and than crahses with "unable to mount ..."

I know I have to choose boot option 3 in order to boot from an usb cdrom but I don't see this menu.

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The computer just boots. Do I need to press a specfic key to bring up this menu or is this maybe missing on the current iso?

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Are you sure about that? Isn't it just "too fast"? Also, I don't think that you need the USB device option. –  MichelZ May 7 at 17:06
    
@MichelZ - I sure need it - doc.pfsense.org/index.php/Boot_Troubleshooting#Booting_from_USB - Anyway I solved it, it was not too fast, it only took forever. –  SchlaWiener May 8 at 5:53
    
Thanks for the Info. Could you post an answer on how you solved it? –  MichelZ May 8 at 5:57

1 Answer 1

Solved it,

to boot from USB Drive, you need boot option number #3

https://doc.pfsense.org/index.php/Boot_Troubleshooting#Booting_from_USB

Booting from USB

If the boot stops with a mountroot error while booting off the live CD, usually with USB CD/DVD drives, escape to the loader prompt and run the following: set kern.cam.boot_delay="10000" boot

On 2.0 this is on the boot menu - option #3 to boot from USB devices.

I just thought the prompt would come very early, like grub or something. But it turned out I had to wait about five minutes (old hardware with USB 1.1 only) for it to show up. And it vanishes after 10 seconds, I think I just missed it the first few tries.

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