Re: USB drive mounted Read-only; what to do ?
On Fri, Dec 19, 2014 at 05:45:33AM -0300, Renaud OLGIATI wrote:
> I plug in a USB pen drive, and launch dd to copy an iso image.
> # dd bs=4M if=debian-live-7.6.0-amd64-rescue.iso of=/dev/sdi && sync
> dd: opening `/dev/sdi': Read-only file system
Read-only file system on /dev/sdi?? This is very out of the usual:
This seems to indicate that your "/dev" filesystem is read-only, and
"dd" cannot create "/dev/sdi" ...
ls -l /dev/sdi
report? I suspect it will say the file does not exist.
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:
> Is there a way to force it to mount read-write ?
Probably. But it depends on why it was read-only to start with...
Karl E. Jorgensen