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Re: Debian Live USB fails; bricks the USB stick

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On Wed, 08 Nov 2017, Thomas Schmitt wrote:
> > dd: failed to open '/dev/sdd': Read-only file system
> 
> What the hell ... ?
> Why does dd talk of filesystems ? I'd understand if it said "Permission
> denied". The superuser isn't what he used to be.

Because the only error number usable for "this thing is read-only" in
POSIX is EROFS, so that's what a read-only block device reports.  Never
mind "EROFS" reads like something that would be used to deny access to
a digital porn stash instead...

Anyway, if this is a pendrive or some other flash-based media, it most
often means it is in the fail-safe last-resort mode (switched to
read-only access so that you can try to salvage some data off it).

Of course, you could also be that one has moved by accident that
minuscle "tab" in some SD cards (and SD-to-micro-SD adapters) to the
write-protect position...

-- 
  Henrique Holschuh

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Thread

Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 18:10 +0100
  Re: Debian Live USB fails; bricks the USB stick Cindy-Sue Causey <butterflybytes@gmail.com> - 2017-11-07 18:30 +0100
  Re: Debian Live USB fails; bricks the USB stick Patrick Bartek <nemommxiv@gmail.com> - 2017-11-07 19:50 +0100
    Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 22:10 +0100
      Re: Debian Live USB fails; bricks the USB stick Patrick Bartek <nemommxiv@gmail.com> - 2017-11-08 00:30 +0100
  Re: Debian Live USB fails; bricks the USB stick davidson <davidson@freevolt.org> - 2017-11-07 20:40 +0100
  Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-07 20:40 +0100
    Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 22:00 +0100
      Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 22:10 +0100
        Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-07 23:10 +0100
          Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 23:30 +0100
            Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-07 23:40 +0100
              Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-08 00:00 +0100
              Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-08 00:00 +0100
                Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-08 00:50 +0100
                Re: Debian Live USB fails; bricks the USB stick Felix Miata <mrmazda@earthlink.net> - 2017-11-08 01:00 +0100
                Re: Debian Live USB fails; bricks the USB stick Henrique de Moraes Holschuh <hmh@debian.org> - 2017-11-08 01:20 +0100
                Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-08 09:50 +0100
                Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-08 16:00 +0100
                Re: Debian Live USB fails; bricks the USB stick Kent West <westk@acu.edu> - 2017-11-08 16:20 +0100
                Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-08 17:10 +0100
                Re: Debian Live USB fails; bricks the USB stick The Wanderer <wanderer@fastmail.fm> - 2017-11-08 18:00 +0100
              Re: Debian Live USB fails; bricks the USB stick "Thomas Schmitt" <scdbackup@gmx.net> - 2017-11-08 00:20 +0100
                Re: Debian Live USB fails; bricks the USB stick David Wright <deblis@lionunicorn.co.uk> - 2017-11-08 01:00 +0100
  Re: Debian Live USB fails; bricks the USB stick Felix Miata <mrmazda@earthlink.net> - 2017-11-07 22:50 +0100
  Re: Debian Live USB fails; bricks the USB stick Mike Kupfer <mkupfer@alum.berkeley.edu> - 2017-11-11 19:50 +0100
    Re: Debian Live USB fails; bricks the USB stick Gene Heskett <gheskett@shentel.net> - 2017-11-11 20:30 +0100

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