Several pihole problems perhaps caused by running out of storage space

[halj78727]

Please follow the below template, it will help us to help you!

Expected Behaviour:

SD storage should not be full on pihole running on 8GB Pi Zero.

Actual Behaviour:

SD storage space seems to be completely full causing many pihole user interface issues (though ad-blocking still occurs).

Debug Token:

Can't run debug because storage is full.

>  sudo df -h
> Filesystem      Size  Used Avail Use% Mounted on
> /dev/root       5.4G  5.4G     0 100% /
> devtmpfs        213M     0  213M   0% /dev
> tmpfs           217M   11M  207M   5% /dev/shm
> tmpfs           217M   23M  195M  11% /run
> tmpfs           5.0M  4.0K  5.0M   1% /run/lock
> tmpfs           217M     0  217M   0% /sys/fs/cgroup
> /dev/mmcblk0p6   68M   22M   47M  32% /boot
> tmpfs            44M     0   44M   0% /run/user/1000
> tmpfs            44M     0   44M   0% /run/user/999

Pihole and the UI was working fine in DNS/DHCP mode for several weeks but suddenly the UI had many problems (e.g. Settings page not available, Network page shows all host activity stopped a week ago, can't whitelist or black list because session expired, etc.). I think these several issues may be caused by having no available space.

I have no idea why the space disappeared and I am a Linux and pihole newbie (but an otherwise technical guy), so I don't have the knowledge to diagnose and solve without guidance.

Can someone please help me?

Thanks!

[halj78727]

And now, pihole no longer works. I had to reboot and the blocklist has 0 entries.

I'm using Adafruit's Pi-hole Kit with the Pi Zero.

I removed some logs and was able to run sudo ncdu / - here is some of what I got.

Here's what I got:

--- / --------------------------------------------------------------------------
    2.7 GiB [##########] /usr
  945.8 MiB [###       ] /opt
  845.9 MiB [###       ] /etc
  673.5 MiB [##        ] /var
  183.0 MiB [          ] /lib
   22.1 MiB [          ] /run
   21.6 MiB [          ] /boot
    7.3 MiB [          ] /sbin
    6.8 MiB [          ] /bin
    4.8 MiB [          ] /home
    2.0 MiB [          ] /dev
   32.0 KiB [          ] /tmp
   28.0 KiB [          ] /root
e  16.0 KiB [          ] /lost+found
   12.0 KiB [          ] /media
e   4.0 KiB [          ] /srv
e   4.0 KiB [          ] /mnt
    0.0   B [          ] /sys
.   0.0   B [          ] /proc

Inside /USR I see:

--- /usr -----------------------------------------------------------------------
                         /..
    1.7 GiB [##########] /lib
  816.9 MiB [####      ] /share
  136.4 MiB [          ] /bin
   23.1 MiB [          ] /include
    5.0 MiB [          ] /sbin
  444.0 KiB [          ] /man
  168.0 KiB [          ] /local
  124.0 KiB [          ] /src
e   4.0 KiB [          ] /games

In /VAR

--- /var -----------------------------------------------------------------------
                         /..
  383.4 MiB [##########] /log
  116.9 MiB [###       ] /lib
  100.0 MiB [##        ]  swap
   61.0 MiB [#         ] /cache
   11.4 MiB [          ] /www
  628.0 KiB [          ] /backups
   52.0 KiB [          ] /tmp
   28.0 KiB [          ] /spool
e   4.0 KiB [          ] /opt
e   4.0 KiB [          ] /mail
e   4.0 KiB [          ] /local
@   0.0   B [          ]  lock
@   0.0   B [          ]  run
``

[halj78727]

I got it back up and running by doing the following:

sudo service pihole-FTL stop

sudo rm /etc/pihole/pihole-FTL.db

sudo service pihole-FTL start

Then rebooting the pi.

I had to "edit" the block list by deselecting one of the block list sources and saving to get it to read the block lists. I did this from the UI.