Mounting USB failed

Hello all

I try to install Kali-linux.1-2017-64amd.iso, i use dd command for create the usb booting, than i install it, but in installation process the usb can't mount, i try execute via shell and run command:

mount /dev/sdb1 /cdrom

... but out a text like this ; mounting /dev/sdb1 /cdrom failed because the target is busy ..

are someone have a sollution for probem like this ?

Thank you before :)

First thing I would check is the hashsum, to make sure you got a valid download. Then I'd try install on a different machine, to verify it works & rule out any problems with the USB drive.

My problem solved, and the problem is error from my USB, when i use a different USB, installation work and no problem.

Thanks

You're quite welcome