this post was submitted on 13 Jul 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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CZ and dd and other "it's 1998" tools copy the entire disk. like, you clone a 500 GB SSD with 50 GB used to another disk, guess how much data gets copied? correctomundo, the entire 500 gigs. that's not super-healthy for the new drive and it recreates the same volume UUIDs on the target disk as the source drive, so you're left with a mess if you keep both drives in a system.
you have a modern tool at your disposal, the mentioned
btrfs send subvol | btrfs receive subvol
that copies only what's used. GRUB (you can use this opportunity to switch to systemd-boot) won't pick up shit, you need to install it to the new drive (and remove it from the old one).eons ago, macOS had the SuperDuper! tool, a free utility that clones the entire disk, resizing the partition in the process and copies only the data and it does that from within the OS, no booting off USB installers and such. sad to say, nothing close exists over here, you'll just have to get good at doing things manually.
I see, I like this approach. However as Fedora installs Grub (and I don't want to have a headache), I think I'll stick with it. Thanks for sharing all your knowledge!