Mount - Create Bootable USB drive
Create a Bootable USB drive by .iso file
1. Download a distribution image
curl -Lo /tmp/ubuntu.iso https://releases.ubuntu.com/jammy/ubuntu-22.04.2-desktop-amd64.iso
2. Check USB flash location
lsblk
3. Umount USB flash Device
sudo umount /dev/sdxX
4. Convert and copy iso file to USB drive
dd if=/tmp/ubuntu.iso of=/dev/sdaxX bs=4M conv=fdatasync status=progress
5. Mount should be be denied
sudo mount /dev/sdxX Rflash/
Output response: sourcve is read-only
mount: /media/jun/Rflash: WARNING: source write-protected, mounted read-only.