Created a new volume on a 10TB (9.1TiB) hard drive, getting conflicting information regarding free space! `gparted` reports 74GB used and 9.02TiB available (seems reasonable). `df` reports 40MB used, but only shows 8.6TiB available (suddenly 425 GiB missing) Disk Info in the file manager reports similar to `df`, showing 0 bytes used but only 8.6TiB available Am I actually losing over 5% of my disk to overhead? ![gparted]( ![df]( ![disk info](

I found the solution to this over on serverfault \- the reserved blocks for root-owned processes by default take 5% of your drive. I lowered this to 0% using `tune2fs -m 0 /dev/sdb1` and now I am showing all my free space, as espected.