I have both HHD 1TB and SSD 240GB. I installed ubuntu on my SSD but recently I got this notification Low Disk Space on "Filesystem root"
Here is the result of df -h. I'm never got this problem before so I'm not sure what is expected from this command.
Filesystem Size Used Avail Use% Mounted on
udev 3,9G 0 3,9G 0% /dev
tmpfs 786M 2,3M 784M 1% /run
/dev/sdb1 19G 17G 541M 97% /
tmpfs 3,9G 143M 3,7G 4% /dev/shm
tmpfs 5,0M 4,0K 5,0M 1% /run/lock
tmpfs 3,9G 0 3,9G 0% /sys/fs/cgroup
/dev/loop0 217M 217M 0 100% /snap/code/77
/dev/loop3 100M 100M 0 100% /snap/core/11993
/dev/loop2 100M 100M 0 100% /snap/core/11798
/dev/loop5 56M 56M 0 100% /snap/core18/2128
/dev/loop1 128K 128K 0 100% /snap/bare/5
/dev/loop6 62M 62M 0 100% /snap/core20/1081
/dev/loop4 56M 56M 0 100% /snap/core18/2074
/dev/loop7 62M 62M 0 100% /snap/core20/1169
/dev/loop8 217M 217M 0 100% /snap/code/78
/dev/loop10 6,3M 6,3M 0 100% /snap/curl/371
/dev/loop9 6,3M 6,3M 0 100% /snap/curl/412
/dev/loop11 66M 66M 0 100% /snap/gtk-common-themes/1519
/dev/loop12 165M 165M 0 100% /snap/gnome-3-28-1804/161
/dev/loop14 27M 27M 0 100% /snap/heroku/4076
/dev/loop15 219M 219M 0 100% /snap/gnome-3-34-1804/72
/dev/loop13 128M 128M 0 100% /snap/slack/46
/dev/loop17 63M 63M 0 100% /snap/notion-snap/6
/dev/loop16 50M 50M 0 100% /snap/snap-store/433
/dev/loop18 51M 51M 0 100% /snap/snap-store/547
/dev/loop19 33M 33M 0 100% /snap/snapd/13270
/dev/loop20 66M 66M 0 100% /snap/gtk-common-themes/1515
/dev/loop21 127M 127M 0 100% /snap/slack/44
/dev/loop22 241M 241M 0 100% /snap/gnome-3-34-1804/24
/dev/loop23 33M 33M 0 100% /snap/snapd/13640
/dev/loop24 169M 169M 0 100% /snap/postman/148
/dev/sdb3 94M 5,2M 89M 6% /boot/efi
/dev/sdb4 186G 8,8G 168G 5% /home
tmpfs 786M 20K 786M 1% /run/user/125
tmpfs 786M 40K 786M 1% /run/user/1000
I've been deleting some snaps by this command sudo du -h /var/lib/snapd/snaps in order to reboot into ubuntu. It even cannot reboot before that which I think might be of the memory problem.
Thanks in advance for your helps
