exact size of UDF image for 50G bluray ?

fishjohn · 08-03-2010, 04:46 AM

Hi,

Whats missing is exact size of image.udf.
E.g. what should be exact value of $ZZZZZZZZ ?

1) dd if=/dev/zero of=image.udf bs=64k seek=$ZZZZZZZZ count=1
2) mount -o loop ./image.udf /mnt/udf
3) write files to /mnt/udf
4) umount /mnt/udf
5) growisofs -speed=8 -Z /dev/scd0=image.udf

indienick · 08-04-2010, 01:52 PM

Try

Code:

$ du -s image.udf

fishjohn · 08-05-2010, 07:08 AM

Thanks, but I want to know what is exact (largest) size of image.udf that I can create. That what fits to bluray disc.

jschiwal · 08-05-2010, 07:33 AM

Code:

1) dd if=/dev/zero of=image.udf bs=64k seek=$ZZZZZZZZ count=1
2) mount -o loop ./image.udf /mnt/udf
3) write files to /mnt/udf
4) umount /mnt/udf
5) growisofs -speed=8 -Z /dev/scd0=image.udf

You skipped a few steps between 1 and 2.
You need to format the udf image. I think you want to use `mkudffs' from the udftools package.
You need to mount the image
You need to change the ownership of the mounted directory so you have permission to copy files into it.

I don't know what the size of a blue ray disk is. The growisofs indicates that a blank blueray disk "BD-RE or BD-R, it gets pre-formatted with minimal spare area size of 256MB." Which you might need to take into account. Doesn't the packaging on the blueray disk give the capability? If not, perhaps wikipedia will provide more information.