On 01/11/2010 03:36 PM, Stuart McGraw wrote:
On 01/11/2010 04:09 PM, Bill Davidsen wrote:
Stuart McGraw wrote:
How does one write a iso filesystem onto a blank DVD+R disk without writing any files, and leaving the DVD writable (i.e, not finalized if that this the right term)?
Growisofs with -Z option writes the first session, with -M writes the rest of the sessions.
Ah, ok. I had tried the -Z option with a small file and thought I ended up with a finalized disk because bacula reported the disk had 0 bytes of free space left. But I may have misinterpreted what I was seeing (or its message may have been bogus.)
Note that the command was "-Z /dev/dvd -R -J /file /file ..."
That's different than "-Z /dev/dvd=/path/to/isoimage" which WILL close the session. In other words, if there's an "=" in the command, the session will close as it will write the disk with the image AND fill it out with zeroes after to close the session.
My feeling is that writing an empty filesystem on a media buys nothing and that's why there's no neat command to do it. If you don't want to write data then why write anything?
Because it's not me but the backup program that wants to write to the DVD and (I think) it wants a mounted DVD to write to. However, looking at another source of info, I may be wrong about that too.
Thanks for the info.
You might want to take a look at the options for wodim as well, specifically the "-multi" and "-nofix" options. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer ricks@nerd.com - - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - - - - Perseverance: When you're too damned stubborn to say "I quit!" - ----------------------------------------------------------------------