On a recent and relatively vanilla installation of Kubuntu, after having difficulties I realized that it is somehow taking up nearly all of the 1TB drive when little else is installed. It has partitions as follows:
1MB /dev/sda1 Grub
513MB /dev/sda2 fat32 EFI Boot
953.37GB /dev/sda3 lvm2 pv Kubuntu
For sda3, the KDE Partition Manager shows that only 2% of the space is available as 931.32GB is being used. How can that be possible on a nearly-fresh 22.10 installation? I suspect that the recent upgrade to 23.04 did not complete and failed to clean up after itself but that should not account for such space being taken up.
UPDATE: The space being used and as reported above from the KDE Partition Manager closely matches that reported by GParted. However, Stacer, a third-Marty system manager, shows what is expected that only 55.2GB is being used. How can there be since a discrepancy?
df -h
and share the output as an edit to your post. – Thomas Ward Apr 23 '23 at 19:50