Filesystem                Size  Used Avail Use% Mounted on
udev                      877M     0  877M   0% /dev
tmpfs                     202M  3.2M  199M   2% /run
/dev/mmcblk0p1             30G   29G     0 100% /
tmpfs                    1008M     0 1008M   0% /dev/shm
tmpfs                     5.0M  4.0K  5.0M   1% /run/lock
tmpfs                    1008M     0 1008M   0% /sys/fs/cgroup
tmpfs                    1008M  4.0K 1008M   1% /tmp
/dev/sda1                 874G   33M  827G   1% /media/HDD
/dev/zram0                 49M  8.2M   38M  18% /var/log
https://webdav.yandex.ru   49G  8.1G   41G  17% /media/HDD/yandexdisk
tmpfs                     202M     0  202M   0% /run/user/0

du: cannot access 'media/HDD/yandexdisk': Input/output error
du: cannot access 'proc/6470/task/6470/fd/4': No such file or directory
du: cannot access 'proc/6470/task/6470/fdinfo/4': No such file or directory
du: cannot access 'proc/6470/fd/4': No such file or directory
du: cannot access 'proc/6470/fdinfo/4': No such file or directory
1271    usr
171     var
108     lib
19      boot
10      bin
7       etc
6       sbin
4       run
4       root
1       tmp
1       srv
1       selinux
1       opt
1       mnt
1       media
1       lost+found
1       home
0       sys
0       proc
0       dev