Filesystem                  1K-blocks      Used Available Use% Mounted on
udev                          4008744         0   4008744   0% /dev
tmpfs                          806896      9656    797240   2% /run
/dev/mapper/ubuntu--vg-root 952653740  35807088 868431524   4% /
tmpfs                         4034480      3024   4031456   1% /dev/shm
tmpfs                            5120         4      5116   1% /run/lock
tmpfs                         4034480         0   4034480   0% /sys/fs/cgroup
/dev/loop0                     113536    113536         0 100% /snap/krita/20
/dev/loop1                      81408     81408         0 100% /snap/core/1689
/dev/loop2                     113664    113664         0 100% /snap/krita/22
/dev/loop3                      87040     87040         0 100% /snap/simplescreenrecorder-mardy/4
/dev/loop5                     113536    113536         0 100% /snap/krita/19
/dev/loop6                      80256     80256         0 100% /snap/core/1577
/dev/loop4                      81408     81408         0 100% /snap/core/2312
/dev/sda1                      482922    190606    267382  42% /boot
tmpfs                          806896        92    806804   1% /run/user/1000
/dev/sdb1                   312568828 237492424  75076404  76% /media/huy/242EC9962EC96202