May be it was wrong decision, but I had no opportunity to make it in another way. I'd tried to burn image of Windows by means of dd on Ubuntu. I used it as usually, but once it'd gotten stuck on some moment and I just unplugged my USB-flesh and tried to plug in once again. fdisk couldn't detect /dev/sdb
device, however, I was able to watch files on USB-flash. I didn't pay attention, but after I perceived this image is wrong. I wanted to clean up my USB-flash devise, but now I cannot make something. When I try
sudo dd if=/dev/zero of=/dev/sdb bs=512 count=1
I get
dd: failed to open '/dev/sdb': No medium found
dmesg, lsusb
detect my device. lsblk
sees nothing.
/dev/XdY
(whereX
andY
are the identifiers of the USB stick) then it's utterly broken and needs to be replaced. – Fabby Jul 04 '19 at 11:21