Partition layouts and unexplained disk usage

[cscs]

@theperspectiv

300mb FAT32 (/boot/efi)
23GB BTRFS (/)
203GB EXT4 (/home)
8GB swap

@theperspectiv

1. Is this a typical layout for a Manjaro install?

Sure… except for one thing.
Your root / may end up becoming filled over time, especially if you install a good number of apps and/or dont clean out the cache.
For the partition layout itself..
Not everyone uses btrfs or a separate home partition (or swap partition) .. but its well within the realms of normalcy.

@theperspectiv

If that doesn’t look like something a distro installer would have suggested or automatically created, what layout would you suggest?

This is fine, besides the root size. a number thrown around often as a good minimum for root is about 30 GB. (for reference .. mine right now is about 26 GB, and I only have single copies in my package cache… recent cleaning)

@theperspectiv

Is there a utility that will show what is ACTUALLY taking up space on a root BTRFS partition?

btrfs itself is what you should ask to know how much it is using.
This thread will probably be helpful for you:

[HowTo] get Space on BTRFS

If you encounter a situation where a Btrfs volume is out of space, There is a way out However, you have to accept that Btrfs is a “strange” filesystem. So if you’re doing things that would help with other filesystems, it might NOT help with btrfs. If you want to know why, check out the wiki Here are a few simple tips: 1. Only use btrfs to meassure the unallocated space on your filesystem: sudo btrfs filesystem usage / 2. Look at “Device unallocated:” If the Unallocated size is less than 10GB…