• Re: DD convert files to UDF filesystem

    From Charles Curley@21:1/5 to William Torrez Corea on Sun Oct 20 23:10:01 2024
    On Sun, 20 Oct 2024 14:00:46 -0600
    William Torrez Corea <willitc9888@gmail.com> wrote:

    I am trying to boot my USB but this device is unrecognizable for the
    BIOS.

    Well, that doesn't tell us very much. Are you in fact using a BIOS
    (which would expect a MS-DOS partition table), or are you using newer
    firmware (which would handle the MS-DOS partition table or the newer
    G?? Partition Table [GPT]). Some older BIOSes don't handle partition
    tables on USB devices at all. Either way, it will be expecting one or
    more variants of FAT. Newer firmware can work with NTFS. I'd use FAT appropriate to the size of the partition. If the firmware is expecting
    EFI, you'll need a separate FAT partition for that.

    You also don't tell us the file system on the USB device.

    As for UDF, I assume you mean Universal Disk Format. https://en.wikipedia.org/wiki/Universal_Disk_Format Are you trying to
    boot a CD or DVD image on a USB device? That is an entirely different
    can of worms.


    How can I convert filesystems through DD?

    Short answer, dd is probably overkill for this. Probably. However, what
    you have told us so far is so vague and confusing that you should first
    make clear what you want to do; than we can give you more precise help.




    I want to save a copy of the file in MSDOS or GPT.

    MS-DOS is an operating system. It used the File Allocation Table (FAT)
    file system, of which there are many variants.

    GPT is a partition table layout.

    You don't save files in either one. You save files in file systems.

    --
    Does anybody read signatures any more?

    https://charlescurley.com
    https://charlescurley.com/blog/

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  • From David Christensen@21:1/5 to William Torrez Corea on Mon Oct 21 03:00:01 2024
    On 10/20/24 13:00, William Torrez Corea wrote:
    I am trying to boot my USB but this device is unrecognizable for the BIOS.

    How can I convert filesystems through DD?

    I want to save a copy of the file in MSDOS or GPT.


    What is the make and model of your computer?


    What is the make and model of your USB device?


    Assuming your USB device contains an operating system image, how did you prepare it? Please reply with the console session, if available.


    Does the USB device boot in other computers?


    david

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