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this post was submitted on 13 Jun 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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As long as it's not a mounted and running live system, it should work. Not the most efficient way to do such a thing, but I would think it should work.
You can zero out the free space on each partition then pipe the output from dd into gzip if you want to save space.
Might as well just use partclone at this point
Seconding partclone here, it's the easiest solution for imaging that only backs up the data on the partition that is used. Plus, it's in RescueZilla, which is pretty intuitive and user friendly for those that prefer GUIs
Gzip runs at tens of MB/s. Zstd runs at least 10x faster, and then goes fasterer with multithreading (-T0).