• @[email protected]
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    4 months ago

    dd, or cat with a shell redirect are all you need to write that iso.

    My trouble with dd is all the flags I need to remember to make it fast and more convenient. dd if=file of=/dev/device oflag=direct status=progress bs=1M is there anything I’m missing?

    • @[email protected]
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      4 months ago

      bs=1M

      This part varies based on your hardware (my hardware is much faster with a value of 4096) , but other than that it’s everything.

      Here is a handy script that can help determine which bs size is best for your hardware.

    • mesamuneOP
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      54 months ago

      dd can be soooo much faster too. But like you, I always forget the tags. I should make an alias sometime…

      • @[email protected]
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        24 months ago

        oflag=direct

        Prevents the writes from piling up in the cache. dd will report the transfer is done when the writes have been cached so this setting prevents dd from exiting until the data has been written completely to the block device.

        • @[email protected]
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          4 months ago

          Use conv=fsync

          This ensures the cache is written before dd exits, but doesn’t necessarily write to disk directly. This means that, for small files, dd can finish release its hold on the input file quicker