this post was submitted on 09 Aug 2024
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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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=1Mis there anything I'm missing?What does this do?
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.
Use
conv=fsyncThis 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