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Re: USB drive mounted Read-only; what to do ?

On Fri, 19 Dec 2014 12:13:59 +0100
Frédéric Marchal <frederic.marchal@wowtechnology.com> wrote:

> A google search reveals it is a common problem that should be fixed with
> sudo hdparm -r0 /dev/sdi

# hdparm -r0 /dev/sdi

 setting readonly to 0 (off)
 readonly      =  0 (off)

	after which again:

# dd bs=4M if=debian-live-7.6.0-amd64-rescue.iso of=/dev/sdi && sync
dd: opening `/dev/sdi': Read-only file system

"Karl E. Jorgensen" <karl@jorgensen.org.uk> wrote:

> What does:
>   ls -l /dev/sdi
> report?  I suspect it will say the file does not exist.

#   ls -l /dev/sdi
brw-rw---T 1 root floppy 8, 128 Dec 19 07:59 /dev/sdi
> If /dev/sdi does not exist, dd will attempt to create it.  As a normal
> file.  Which is probably not what you want...
> Similarly, can /dev actually be written to?  The output of a command
> like this would be instructive:
>   touch /dev/somefile-which-doesnt-exist

# touch /dev/somefile-which-doesnt-exist

# ls -l /dev/somefile-which-doesnt-exist
-rw-r--r-- 1 root root 0 Dec 19 09:54 /dev/somefile-which-doesnt-exist

My gast remains fiercely flabbered...
                        George Orwell was an optimist.
                                       -- Isaac Asimov
                   -- http://www.olgiati-in-paraguay.org --

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