New install, DNS service not running

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1

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Expected Behaviour:

Pihole status should be green on device restart, should block ads

Actual Behaviour:

DNS service is not running

Debug Token:

http://tricorder.pi-hole.net/d75caq6psx

I used the pihole curl command on a beaglebone running Debian 9.5 IOT image. It installed fine but when visiting the admin interface it says DNS not running. I have rebuilt / reconfigured / and reinstalled a few times and it doesn't want to seem to work.

If I set the router DNS to my pihole, we get no internet.

1 Like
2

What is the output from sudo systemctl status --full --no-pager pihole-FTL.service?

3 
● pihole-FTL.service - LSB: pihole-FTL daemon
   Loaded: loaded (/etc/init.d/pihole-FTL; generated; vendor preset: enabled)
   Active: active (exited) since Sun 2019-03-24 04:17:20 UTC; 9min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 1081 ExecStart=/etc/init.d/pihole-FTL start (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 4915)
   CGroup: /system.slice/pihole-FTL.service

Mar 24 04:17:12 beaglebone systemd[1]: Starting LSB: pihole-FTL daemon...
Mar 24 04:17:13 beaglebone pihole-FTL[1081]: Not running
Mar 24 04:17:17 beaglebone pihole-FTL[1081]: /etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /etc/resolvconf/run/resolv.conf
Mar 24 04:17:19 beaglebone su[1362]: Successful su for pihole by root
Mar 24 04:17:19 beaglebone su[1362]: + ??? root:pihole
Mar 24 04:17:19 beaglebone su[1362]: pam_unix(su:session): session opened for user pihole by (uid=0)
Mar 24 04:17:20 beaglebone pihole-FTL[1081]: dnsmasq: cannot open or create lease file /var/lib/misc/dnsmasq.leases: Permission denied
Mar 24 04:17:20 beaglebone systemd[1]: Started LSB: pihole-FTL daemon.

So it's having trouble creating that file -- if I create the directory and touch the file and give it perms, and then restart pihole service it works. However this is all undone after a reboot.

4

What are the contents of the /etc/dnsmasq.conf file? And sudo mount | grep /var?

5 
debian@beaglebone:~$ cat /etc/dnsmasq.conf
conf-dir=/etc/dnsmasq.d

The second command does not return anything.

6

Thanks, how about just the plain sudo mount output without any filter?

7

Apologies for the delay

here's the output from sudo mount

sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=220136k,nr_inodes=55034,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=49488k,mode=755)
/dev/mmcblk1p1 on / type ext4 (rw,noatime,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=s                             ystemd)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=25,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=15923)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=49484k,mode=700,uid=999,gid=991)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=49484k,mode=700,uid=1000,gid=1000)
8

I'm not familiar with Debian on BeagleBone so I'm not exactly sure why /var/lib/misc/ does not persist or exist after a reboot. You may have to contact someone with some more experience with that platform for more assistance.

9 
pi@noads:~ $ dpkg -S /var/lib/misc
base-files: /var/lib/misc

pi@noads:~ $ dpkg -L base-files
[..]
/var/lib/dpkg
/var/lib/misc
/var/local
[..]

pi@noads:~ $ apt show base-files
[..]
Description: Debian base system miscellaneous files
 This package contains the basic filesystem hierarchy of a Debian system, and
 several important miscellaneous files, such as /etc/debian_version,
 /etc/host.conf, /etc/issue, /etc/motd, /etc/profile, and others,
 and the text of several common licenses in use on Debian systems.

pi@noads:~ $ apt policy base-files
base-files:
  Installed: 9.9+rpi1+deb9u8
  Candidate: 9.9+rpi1+deb9u8
  Version table:
 *** 9.9+rpi1+deb9u8 500
        500 http://raspbian.raspberrypi.org/raspbian stretch/main armhf Packages
        100 /var/lib/dpkg/status

If the base-files package containing /var/lib/misc is not installed, try installing and see if the folder survives a reboot:

sudo apt-get install base-files

If already installed, try reconfigure that will run the post install scripts for that package:

sudo dpkg-reconfigure base-files

If that dont help, try reinstall:

sudo apt-get install --reinstall base-files

10

An update.

I'm not sure why it was occurring previously, but subsequent restarts of the system have not lead to the /var/lib/misc folder being removed, and after a power cycle the system is running as expected. It may have been due to this solution as well (removing softAP0 file) FTL offline and pihole not blocking ads - #11 by deHakkelaar

Combined with this solution, FTL is offline after update to 4.0 - #27 by deHakkelaar everything appears to be working as expected.

To anyone else facing this issue: dnsmasq: cannot open or create lease file /var/lib/misc/dnsmasq.leases: Permission denied here is how I solved it.

sudo mkdir /var/lib/misc
sudo touch /var/lib/misc/dnsmasq.leases
sudo chown pihole:pihole /var/lib/misc/dnsmasq.leases

Then restart the service and everything should be well. Just ensure that it persists through a power cycle and you should be good to go.

3 Likes
11

For above solution, can you change the last command into below:

sudo chown pihole:pihole /var/lib/misc/dnsmasq.leases

That way you prevent people stumbling on this solution that do have the misc folder populated, mistakenly run the chown and changing ownership recursively, the -R argument, for all files and folders contained in the misc folder.

4 Likes
12

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