TL note: "keikaku" means "plan"
How?
this post was submitted on 26 Apr 2026
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Meh... If /home is on a separated partition that's no biggie. Reinstalling Linux, even Arch, takes half an hour at most.
Being with Arch for like seven years or so, itβs only recently Iβve learned one neat trick, upon reinstalling the system I have on various Windows tablets. I start sshd, do passwd and connect from my main machine. Then I just quickly format disks, and pacstrap system by copy-pasting commands from my blog, where I have the instructions for my devices. Itβs not the very techy way, I guess, but I was able to reinstall my system within like 10 minutes, most of which was booting off the USB drive with Arch ISO, and then downloading the packages and waiting for them to be installed, and rebuilding Initramfs.
Why are you not using reproducible, read only rootfs with separately mounted data partitions?
Ive been using for almost 20 years and I don't even fully know what that means. How are data partitions bulk-mounted? Why would rootfs be ro or rw? Why would anyone care?
I haven't tried any yet, but my understanding is that recently there's been a trend of immutable Linux distros, where the root filesystem is immutable (read-only). Instead of directly changing stuff in /etc, installing apps, etc, you instead update some sort of config that says exactly how to set up the system, and rerun a script that rebuilds the root.
System updates are atomic - either the whole update is completed, or the whole update is rolled back. If the system breaks, you can revert back to an old config file and restore it to exactly the same state as it was before.
It's still not very common - the majority of Linux systems aren't doing this.