On Wednesday, July 26, 2006, at 11:35 AM, Ed Kim wrote:
Anne Wilson wrote:
On Wednesday 26 July 2006 15:56, Ed Kim wrote:
try these commands
mkisofs -o /Backup/mybackup.iso -R -J -l -v /path/to/data/directory/
That worked perfectly.
cdrecord -v -sao dev=cdrom -data /Backup/mybackup.iso
This still chokes:
......
cdrecord: Found DVD media: using cdr_mdvd.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags : SWABAUDIO BURNFREE
Supported modes: PACKET SAO
Drive buf size : 1563904 = 1527 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 1714 MB
Total size: 1968 MB (195:02.81) = 877711 sectors
Lout start: 1969 MB (195:04/61) = 877711 sectors
Current Secsize: 2048
ATIP start of lead in: -150 (00:00/00)
Disk type: unknown dye (reserved id code)
Manuf. index: -1
Manufacturer: unknown (not in table)
Blocks total: 15872 Blocks current: 15872 Blocks remaining: -861839
cdrecord: WARNING: Data may not fit on current disk.
cdrecord: Notice: Most recorders cannot write CD's >= 90 minutes.
cdrecord: Notice: Use -ignsize option to allow >= 90 minutes.
cdrecord: Notice: Use -overburn option to write more than the
official disk capacity.
cdrecord: Notice: Most CD-writers do overburning only on SAO or RAW
mode.
******
From the man page:
-ignsize
Ignore the known size of the medium. This option
should be used
with extreme care, it exists only for debugging
purposes don’t
use it for other reasons. It is not needed to write
disks with
more than the nominal capacity. This option implies
-overburn.
so it doesn't sound as though that would be the solution.
In order to rule out some of the possible causes I did try to write a
straightforward data dvd backup in k3b - something I do regularly on
this workstation. Both boxes have the same version of cdrecord. On
the box that I'm trying to backup I cannot get a dvd backup. On this
one there is no problem. On the problematic one I keep seeing
references to pread642(2)
Anne
Can you attempt to use a different DVD media? in the past, when I
have seen cdrecord spit,
Disk type: unknown dye (reserved id code)
A change in media manufacturers or a double check on +R/-R
capabilities and disc types does the trick.
I haven't been following this issue, but are you using the correct
device (dev=cdrom)
On my particular computer I have two cd/dvd readers, but you can write
to only one. I mounted a dvd on the writer device.
It came out to be /mnt/cdrom1. I found that /mnt/cdrom1 was a link to
/dev/scd0
I cd record to /dev/cdwriter:@ and I dvd record to /dev/scd0
--
Ed Kim, RHCE
http://www.rhatbox.com
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