Re: Writing Dual Layer DVD-RW using Linux
varenorn <email@example.com> wrote:
> I use a 10GB HP Colorado tape drive to backup my personal Linux PC
> every week/month. I backup to the tape using GNU tar in compress mode,
> thereby allowing me to back up to approximately 20GB of files.
> However, it is not in a good state at the moment. So I am considering
> using DVD instead.
> The closest alternative to the 10GB tape is the 8.5GB DVD-RW DL (i.e.
> dual layer). The capacity should be good enough for my needs.
> I can't write to a file on hard disk and afterwards burn the DVD as I
> do not have enough disk space. So, I am thinking of using the kernel's
> packet writing abilities to do my backups.
> What I envisage happening is something like the following.
> Firstly, I need to set up the packet writing:
> $ mkdir /dev/pktcdvd
> $ mkdir -p /mnt/pktcdvd/0
> $ mount /dev/pktcdvd/0 /mnt/pktcdvd/0 -t udf -o
> noauto,noatime,rw,users,sync,dirsync # (See kernel Bug 5893 for
> sync,dirsync parameters)
> When I get a freshly bought DVD-RW DL, I need to put a UDF file system
> on it and then format it:
While DVD-RW/DL have been in the labs for a while, I have been told that
they will not been sold because all current DVD drives cannot read them.
Where did you get DVD-RW/DL media from and what drive do you have?
What do you see with cdrecord -v -checkdrive
The output should like like:
cdrecord dev=4,0,0 -checkdrive -v
Cdrecord-ProDVD-ProBD-Clone 2.01.01a35 (i386-pc-solaris2.11) Copyright (C) 1995-2007 Jörg Schilling
TOC Type: 1 = CD-ROM
scsibus: 4 target: 0 lun: 0
Warning: Using USCSI interface.
Using libscg version 'schily-0.9'.
SCSI buffer size: 64512
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Vendor_info : 'MATSHITA'
Identifikation : 'BD-MLT SW-5582 '
Revision : 'BDB2'
Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
Profile: BD-R sequential recording
Profile: BD-R random recording
Profile: BD-RE (current)
Profile: DVD-RW restricted overwrite
Profile: DVD-RW sequential recording
Profile: DVD-R/DL layer jump recording
Profile: DVD-R/DL sequential recording
Profile: DVD-R sequential recording
Profile: Removable Disk (current)
Using generic SCSI-3/mmc-3 BD-RE driver (mmc_bdre).
Driver flags : NO-CD BD MMC-3 BURNFREE
Supported modes: PACKET SAO LAYER_JUMP
Drive buf size : 6881280 = 6720 KB
and DVD-RW/DL should be in the list of profiles.
EMail:firstname.lastname@example.org (home) Jörg Schilling D-13353 Berlin
email@example.com (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily