Re: dvdformat a loopback device

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




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

_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue



[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [EPEL Devel]     [Fedora Magazine]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Desktop]     [Fedora Fonts]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Fedora Sparc]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux