Startup disk creator is pre-installed in most of the Linux distributions including Ubuntu. Create Bootable USB using Startup Disk Creator You can download the ISO of Ubuntu 18.04 LTS Desktop from here: ġ. But you can use other any other Linux Distro.

Note: In this article, I will use ISO of Ubuntu 18.04 LTS Desktop.

Cloning ISO image to a USB disk using Ddrescue

Other usb drives don't works maybe becouse your usb port can be shared with another your usb port or you don't have power for working live usb OS, probably working hdd drive and other usb disk what needs more power than usual. can be if you install bootloader too and make partition active. Your command doesn't correct without mkfs.vfat first. Try this: su -c 'dd if=/home/user/debian.iso of=/dev/sdc bs=4M sync eject /dev/sdc' In addition you made few mistakes by typing dd command. That's why you have to create a filesystem exactly on the disk /dev/sdc, not in the partition primary. You can't clone blocks of iso file to primary partition, becouse dvd or cd disc doesn't have it too. To make bootable usb disk from iso file using dd command, disk can't have partitions like /dev/sdc1(one from four possible primary partitions of disk /dev/sdc ). casper doesn't have to be a file, it can also be a partition. From what I understand, when booted with the boot=casper option, the kernel overlays the casper file (creating one if none exists) on top of the squashfs, so that it gains write capability. SquashFS is read-only, so for persistence, a casper-rw file is created in /casper. So if you dd a 1GB ISO to a 8 or 16 GB USB drive, you're effectively abandoning the remaining space unless extra steps are taken.ġTypically, most live images use a SquashFS file for the root partition. A SCD-created disk is still usable as a USB drive, even though the contents are are not accessible from the live environment easily. It was only 2010 that all Arch ISOs gained this feature (where you could write it directly to a USB drive) - from 2008 to 2010 they had special USB images.įurther, if you dd a drive directly, that drive is effectively read-only until you format it or use the remaining space somehow. This was not true about three or four years ago, when I looked at Arch. You should be able to create a bootable USB using most (reasonably popular) distros' installation ISOs at present.

You can think of it as doing equivalent of Arch Linux's or Gentoo's manual methods. It is not a GUI for dd (there are GUIs for dd, but SDC is not one of those).

(Add an extra casper 1 file for persistence, if selected.

Copy over the data from the ISO to the drive.

If you run Startup Disk Creator, you'll notice that it does three (four) things:

Install ubuntu startup disk creator