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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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Do I really have to use secure erase (sopuli.xyz)

submitted 2 days ago by JamesBoeing737MAX@sopuli.xyz to c/linux@lemmy.ml

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I am giving away a shitty 128GB SSD, which was used with LUKS 2 for most of it's lifetime. As far as I know, it's good practice to secure-erase it, but I'm too lazy to reinstall the OS on it (I already did it once). Is it really needed?

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[–] boonhet@sopuli.xyz 26 points 2 days ago (1 children)

Ah, fun fact, dd won't actually cover all the blocks since SSDs have reserve blocks and IIRC they do rotate which ones are in use vs which are not, to even out wear

[–] TrollAccount69@lemmy.ml 4 points 2 days ago

Yes of course this will only rewrite some number of blocks that total the disks reported capacity. In the case that a person is worried about hidden blocks being preserved by a wear leveling algorithm they could just run the same command again and that would get em all.