On 10/08/12 01:50 AM, Thomas Schmitt wrote:
Hi,
fd = open(/dev/sr0, O_RDWR);
root@transponder:/home/garydale# ./open_sr0
open: fd= -1 , errno= 30
open: Read-only file system
This is surprising, because xorriso uses
open(..., O_RDWR | O_NDELAY);
when it acquires a drive.
(I would have
Hi,
-fd = open(/dev/sr0, O_RDWR);
+fd = open(/dev/sr0, O_RDWR | O_NDELAY);
open: fd= 3 , errno= 0
write: ret= 2048 , errno= 0
This explains why xorriso or dvd+rw-format can open the drive
device file. (The failure to re-format is a different problem.)
No one in Debian user has
On 10/08/12 05:23 AM, Thomas Schmitt wrote:
Hi,
-fd = open(/dev/sr0, O_RDWR);
+fd = open(/dev/sr0, O_RDWR | O_NDELAY);
open: fd= 3 , errno= 0
write: ret= 2048 , errno= 0
This explains why xorriso or dvd+rw-format can open the drive
device file. (The failure to re-format is a
Hi,
I'm wondering if the problem is the iso9660 file system that K3B put onto
the disc?
I seriously doubt.
At least dd should have no scruples to overwrite any filesystem.
The block device driver has no idea of filesystems.
The only connection would be open(2) flag O_EXCL. mount uses it
to
Hi,
i can reproduce the symptoms by a read-only situation of drive and
media. (It should not happen with BD-RE in a BD writer, of course.)
open_sr0.c with O_NDELAY yielded:
open: fd= 3 , errno= 0
write: ret= 2048 , errno= 0
I get the same behavior when i put a DVD into a DVD-ROM drive.
It
On 10/08/12 10:33 AM, Thomas Schmitt wrote:
Hi,
i can reproduce the symptoms by a read-only situation of drive and
media. (It should not happen with BD-RE in a BD writer, of course.)
open_sr0.c with O_NDELAY yielded:
open: fd= 3 , errno= 0
write: ret= 2048 , errno= 0
I get the same behavior
On 10/08/12 12:46 PM, Gary Dale wrote:
On 10/08/12 10:33 AM, Thomas Schmitt wrote:
Hi,
i can reproduce the symptoms by a read-only situation of drive and
media. (It should not happen with BD-RE in a BD writer, of course.)
open_sr0.c with O_NDELAY yielded:
open: fd= 3 , errno= 0
write: ret=
Hi,
I did another test using system rescue cd. While it gives me the same error
when I run dvd+rw-format, I note that mkudffs complains about multiple
extents. I don't know why it gives a different message under system rescue
cd than under Debian/Wheezy but I thought it might be a clue as to
On Mon, Aug 06, 2012 at 11:51:36PM -0400, Gary Dale wrote:
I'm using Memorex BD-RE 2x discs. I've used an LG, ASUS and Pioneer
BluRay writer - the first two on the older machine. The ASUS and
Pioneer are brand new writers.
Any ideas?
Have you tried different media?
Also a quick google
[Ccing cdwr...@other.debian.org]
Any ideas?
On Tue, Aug 07, 2012 at 03:49:13PM -0400, Gary Dale wrote:
On 06/08/12 11:51 PM, Gary Dale wrote:
I've been using BD-RE discs for backups on a Debian/Squeeze server
for a couple of years now. In the last week or so the backups have
been failing. I
Hi,
[i am subscribed to cdwr...@other.debian.org, not to debian-user]
I tried a new disc again, and this time formatted it through K3B
instead of using dvd+rw-format directly.
I don't know what K3B does as formatting, but dvd+rw-format does
only a hardware level formatting. It does not
On 09/08/12 12:08 PM, Thomas Schmitt wrote:
Hi,
[i am subscribed to cdwr...@other.debian.org, not to debian-user]
I tried a new disc again, and this time formatted it through K3B
instead of using dvd+rw-format directly.
I don't know what K3B does as formatting, but dvd+rw-format does
only a
On 9 August 2012 17:43, Gary Dale garyd...@rogers.com wrote:
Already tried that. dd complains:
dd: opening `/dev/sr0': Read-only file system
It sounds like it is mounted; try unmounting it, then try dd again.
--
Sent from FOSS (Free Open Source Software)
Debian GNU/Linux
--
To
On 09/08/12 01:19 PM, Keith McKenzie wrote:
On 9 August 2012 17:43, Gary Dalegaryd...@rogers.com wrote:
Already tried that. dd complains:
dd: opening `/dev/sr0': Read-only file system
It sounds like it is mounted; try unmounting it, then try dd again.
root@transponder:/home/garydale#
On 09/08/12 12:08 PM, Thomas Schmitt wrote:
Hi,
[i am subscribed to cdwr...@other.debian.org, not to debian-user]
You could use sequential burn programs like growisofs or xorriso.
Both can add files to ISO 9660 filesystems on BD-RE.
Those filesystems are mountable read-only.
If you canafford
On 9 August 2012 18:28, Gary Dale garyd...@rogers.com wrote:
On 09/08/12 01:19 PM, Keith McKenzie wrote:
On 9 August 2012 17:43, Gary Dalegaryd...@rogers.com wrote:
Already tried that. dd complains:
dd: opening `/dev/sr0': Read-only file system
It sounds like it is mounted; try
Hi,
Yes, I have read-write permissions.
Something does not work properly.
Are any related messages to see in the output of dmesg ?
I tried xorriso to fix the disc as well but it also fails.
What did you try and what did it report when it failed ?
(We could get a log of SCSI commands from
Hi,
I also tried using K3B to burn as udf.
mkisofs print size result: 0 (0 bytes)
This looks like a different problem.
A size prediction of 0 is hardly to explain by any state of
the target medium. How large should the result have been ?
What do you get from
xorriso -outdev /dev/sr0
On 09/08/12 01:46 PM, Keith McKenzie wrote:
On 9 August 2012 18:28, Gary Dalegaryd...@rogers.com wrote:
On 09/08/12 01:19 PM, Keith McKenzie wrote:
On 9 August 2012 17:43, Gary Dalegaryd...@rogers.com wrote:
Already tried that. dd complains:
dd: opening `/dev/sr0': Read-only file
On 09/08/12 01:45 PM, Thomas Schmitt wrote:
Hi,
Yes, I have read-write permissions.
Something does not work properly.
Are any related messages to see in the output of dmesg ?
Nothing in dmesg | tail or syslog just now when I tried a dvd+rw-format
-force=full.
I tried xorriso to fix the
On 09/08/12 02:39 PM, Thomas Schmitt wrote:
Hi,
I also tried using K3B to burn as udf.
mkisofs print size result: 0 (0 bytes)
This looks like a different problem.
A size prediction of 0 is hardly to explain by any state of
the target medium. How large should the result have been ?
59M or
Hi,
# xorriso -scsi_log on -dev /dev/sr0 -format full
...
xorriso : FAILURE : libburn indicates failure with formatting.
It should have reported the SCSI error (will have to dig for that).
That error came with command FORMAT UNIT
FORMAT UNIT
04 11 00 00 00 00
To drive: 12b
00 82 00 08
On 09/08/12 04:36 PM, Thomas Schmitt wrote:
Hi,
# xorriso -scsi_log on -dev /dev/sr0 -format full
...
xorriso : FAILURE : libburn indicates failure with formatting.
It should have reported the SCSI error (will have to dig for that).
That error came with command FORMAT UNIT
FORMAT UNIT
04
Hi,
fd = open(/dev/sr0, O_RDWR);
root@transponder:/home/garydale# ./open_sr0
open: fd= -1 , errno= 30
open: Read-only file system
This is surprising, because xorriso uses
open(..., O_RDWR | O_NDELAY);
when it acquires a drive.
(I would have expected to see the error with write(),
On 06/08/12 11:51 PM, Gary Dale wrote:
I've been using BD-RE discs for backups on a Debian/Squeeze server for
a couple of years now. In the last week or so the backups have been
failing. I haven't modified my backup script so I thought about
possible hardware issues.
- I tried changing the
I've been using BD-RE discs for backups on a Debian/Squeeze server for a
couple of years now. In the last week or so the backups have been
failing. I haven't modified my backup script so I thought about possible
hardware issues.
- I tried changing the BluRay writer but got the same problem.
-
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