On 12/18/2022 4:47 PM, Samuel Sieb wrote:
On 12/18/22 13:40, Bill Cunningham wrote:
IDK if you can do this or not. Say if you have a file that is 2.048
Gig and it is attached to a loopback device, say /dev/loop0,
losetup /dev/loop0 FILE_NAME,
And you tried cdrwtool -d /dev/loop0 -q;
Now I have tried this and get errors. IDK if there's a way around
this, a safety issue that is built in, or maybe I am not using the
right program to format a "dvd".
Can you dvdformat a loopback device?
No, that doesn't make any sense. The formatting is a physical thing.
For a disk image, you just make an .iso file. You can later write
that to a physical disk.
What are you trying to do?
I thought I would make the format, observe the detail then copy. For
example, I can format a loopback and observe the data with a hexdump
like xxd. This seems to work and thre is no physical device,
I use dd to create a 2.048 Gb zero'd file, for example.
losetup /dev/loop0 FILE to mount the loopback,
mkfs.vfat -F 32 /dev/loop0
and detach and xxd -g1 FILE.
There is a formatted FAT32 filesystem. Why can't this be done with a DVD
format UDF file?
Hope that makes sense.
B
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