Quoting JD <jd1008@xxxxxxxxx>:
On Wed, Nov 21, 2012 at 4:49 AM, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
On Tue, 20 Nov 2012 22:29:44 -0700
JD <jd1008@xxxxxxxxx> wrote:
> Is there a system util to use to issue
> a command to a hard drive to remove
> write protect?
> I had thought hdparm might do it, but
> the man page makes no mention of such
> feature in hdparm.
SATA or some kind of USB thing ?
If its SATA I'm not aware of a standard way to do it or of drives having
the feature for that matter. Check for a jumper and also if its suddenely
gone read-only perhaps its doing that because its failed ?
What makes you think it's gone read only ?
Alan
It is an eSATA 2 drive in external enclosure with eSATA2 host interface.
I now believe that the device state is being maintained in the kernel
(Driver???)
because of failure of disk to respond to host query to identify itself
or to host
query to report it's DMA status??
Please have a look at the error messages I had posted at
http://www.sendspace.com/file/761te2
Guess I should download full kernel source and peruse the drivers code to see
if and where the read-only state is being set as a consequence of no response
to host's queries.
seems like a lot of work. why not boot from a live CD and see if you
can mount it read/write?
Dave
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