On 5/3/2019 7:29 PM, Paul Sutton wrote: > > On 03/05/2019 18:24, James Medeiros wrote: >> I usually use dd; the following should also work (someone jump in if >> I'm misunderstanding the question). Also second what Greg said, make >> sure your USB isn't mounted. >> >> dd if=<ISO file> of=/dev/sdf bs=8M >> >> >> >> On Fri, May 3, 2019 at 12:54 PM Greg Wooledge <[email protected] >> <mailto:[email protected]>> wrote: >> >> On Sat, May 04, 2019 at 01:50:31AM +0900, Mark Fletcher wrote: >> > it auto-mounted. >> >> > So as root I did: >> > >> > cp <ISO file> /dev/sdf >> >> You need the device NOT to be mounted when you do the cp. This >> may mean >> you have to turn off your auto-mounter, or (better still) just log >> out of >> your Desktop Environment entirely, and log in as root on a text >> console >> for this operation. >> >> If the device is mounted, that will interfere with the raw byte >> writing >> you're doing. The results are unpredictable. >> > > Just to add that if you put status=progress at the end you should get a > progress bar as it writes, this is handy otherwise you are sitting > around for what seems ages while it writes away in the background. >
It should be noted that a regular cp command could be used as well: $ cp *.iso /dev/sdX To unmount something from the command line you would do something like: $ umount <WHERE-IT-IS-MOUNTED> -- John Doe

