I'm having trouble at the moment because my /home partition appears to be full and its usable space seems to be much smaller than the actual disk, which is the confusing part.
this is the line in fstab where my home partition gets mounted:
#home
UUID=6e6a584b-fa83-439b-bca2-1772b65a3cf2 /home ext4 defaults 0 0
In gnome disks, this is shown as a 256gb partition covering the entire disk (and that's apparently 99% full, which shouldn't be true): link
The confusing part is the following output of df -Th | sort, where /home is shown as only 28gb in size:
df -Th | sort
/dev/loop10 squashfs 88M 88M 0 100% /snap/core/5328
/dev/loop16 squashfs 5,0M 5,0M 0 100% /snap/canonical-livepatch/42
/dev/sda1 ext4 28G 25G 1,1G 97% /home
/dev/sdb2 ext4 117G 28G 83G 26% /
Filesystem Type Size Used Avail Use% Mounted on
tmpfs tmpfs 3,9G 0 3,9G 0% /sys/fs/cgroup
tmpfs tmpfs 3,9G 41M 3,9G 2% /dev/shm
tmpfs tmpfs 5,0M 4,0K 5,0M 1% /run/lock
tmpfs tmpfs 789M 16K 789M 1% /run/user/120
tmpfs tmpfs 789M 1,9M 787M 1% /run
tmpfs tmpfs 789M 36K 789M 1% /run/user/1000
udev devtmpfs 3,9G 0 3,9G 0% /dev
I just don't get what's going on here... Can someone help me out? My machine is also slowing down significantly in certain situations now where it hasn't before, which I hope to fix after I understand where all the disk space went.
here's another image of the gnome disk usage analyzer, where home is also 28GB: link
edit: BTW, .cache/dconf is less than a kb in size
output of lsblk:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 238,5G 0 disk
└─sda1 8:1 0 238,5G 0 part /home
sdb 8:16 0 119,2G 0 disk
├─sdb1 8:17 0 512M 0 part /boot/efi
└─sdb2 8:18 0 118,8G 0 part /
sr0 11:0 1 1024M 0 rom