I had a system that ran out of space due to the journal getting full. So I vaccumed that and recovered the space, but while looking at that, I noticed that the system is using half it's drive space on /dev/vda1 but I can't figure out where the rest went.
Shutdown and rebooted, then ran ncdu as root - no help. What else can I check?
Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 795M 756K 794M 1% /run /dev/vda1 151G 71G 72G 50% / tmpfs 3.9G 0 3.9G 0% /dev/shm 7.8 GiB [##########] swapfile 1.9 GiB [## ] /usr 1.3 GiB [# ] /var 82.1 MiB [ ] /boot 7.9 MiB [ ] /etc 2.0 MiB [ ] /home 756.0 KiB [ ] /run 92.0 KiB [ ] /root 56.0 KiB [ ] /tmp e 16.0 KiB [ ] /lost+found 12.0 KiB [ ] /media 12.0 KiB [ ] /opt e 4.0 KiB [ ] /srv . 0.0 B [ ] /proc 0.0 B [ ] /sys 0.0 B [ ] /dev @ 0.0 B [ ] initrd.img.old @ 0.0 B [ ] initrd.img @ 0.0 B [ ] vmlinuz.old @ 0.0 B [ ] vmlinuz @ 0.0 B [ ] libx32 @ 0.0 B [ ] lib64 @ 0.0 B [ ] lib32 @ 0.0 B [ ] sbin @ 0.0 B [ ] lib @ 0.0 B [ ] bin < 0.0 B [ ] mnt 