On 2019-05-04, Mark Fletcher <[email protected]> wrote: > On Fri, May 03, 2019 at 12:54:17PM -0400, Greg Wooledge 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.
I'm intervening here merely to point out that just because the user's external usb device is auto-mounted does not mean that said device cannot be unmounted by the usual methods (at least I have yet to encounter Greg Wooledge's auto-mounter from Hell that will not permit it). >> If the device is mounted, that will interfere with the raw byte writing >> you're doing. The results are unpredictable. >> > > This makes sense to me; confession time -- I originally ejected the pen > drive when Gnome auto-mounted it, but then found I couldn't do anything > with the device at all, so concluded that contrary to my memory it > needed to be mounted. Web pages I'd found said nothing about unmounting > the device before writing, so again I thought my memory was faulty. What > I failed to consider was the difference between unmounting and ejecting. > -- The boys at first were very polite about my medals and asked me what I had done to get them. I showed them the papers, which were written in very beautiful language and full of fratellanza and abnegazione, but which really said, with the adjectives removed, that I had been given the medals because I was an American. - "Another Country"
