Error when load arch from USB?

Question

linux

Install arch with wm:bspwm, term:urxvt.
Don`t like default settings urxvt, but i changes in ~/.Xresources dosn`t work.
Try install manjaro bspwm iso to flash drive, use

dd  if=/root/Documents/manjar_.....x86.iso of=/dev/sdv1

to root folder download Seamonkey
befor all this do

sudo umount /dev/sdb1
mkfs.vfat /dev/sdb1
mount /dev/sdb1 /mnt/sdb1

But when start loading from usb i see " Reboot and sellect prooper boot device" BUT in BIOS on 1st place - HDD, 2nd - CD/DWD , and the 3th - Flash.
On load press F12 and see this error.
thanks.
Staralsa pisat ponato, net ctrl+c , ctrl+v . A translitom pisat stolrko texta ubistvenno.
Sorry.

Answer 1

USB flash installation media

Answer 2

You need to write the image not to the flash drive partition, but to the flash drive itself. That is, not
but
Naturally, all partitions on the flash drive will be deleted and then you will have to format it back again.
UPD: And, of course, if you write an image to a USB flash drive via dd, you don’t need to format and mount it before that. You don't seem to understand at all what the commands you run do.