last year when I went back to Arch from Manjaro, I made a critical error. I’m not sure if I was just tired when partitioning things off or what. but I made my root only 20GB instead of the 50 that I had intended. I know in a lot use cases that’ll be fine, but in mine, not so much. with steam compat taking up 1-2gb and keeping one version of pacman cache, I’m constantly getting the redline warning.
Tonight I plan on booting to live and resize my luks drive and hopefully not fuck it. and if I do? oh well…Timeshift will hopefully save me.
I recommend next time to use btrfs. With / and /home (at least) as separate subvolumes. Each subvolume will use the space it needs, and no more. If you have a 500Gb SSD with 300Gb in /home, and 20 in / they both have 180Gb they can use.
And when you manage to fill the 500Gb, it’s easy to just add another drive to the volume.
Btrfs is really cool, just a warning: I had a surprise when I found out the subvolumes make a device more of a hassle to mount externally, you can’t just put it on an external HDD enclosure and expect it to work as painlessly as it is with more “traditional” file systems, I had to mount each subvolume manually as GUI file managers only mounted the root.
It’s not complicated, but more than I’d hoped for.
Thx for eli5 the advantage of btrfs