# Unable to install Pi-hole dependency package

**URL:** <https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664>\
**Category:** Help\
**Created:** [September 20, 2026, 2:35pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664 "2026-09-20T14:35:26Z")\
**Posts on this page:** 18\
**Page:** 1

<div class="post-metadata">

**Author:** ![Genisis](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/g/f475e1/32.png) [@Genisis](https://discourse.pi-hole.net/u/Genisis)\
**Post date:** [September 20, 2026, 2:35pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/1 "2026-09-20T14:35:26Z")

</div>

Have tried to repair and debug but to no avail, it still will not update. Can anyone see the issue in the below report? I have been google searching for possible fixes for hours and cannot find anything to repair the issue. Thank you for any assistance in this matter.

```auto
\[✓\] Building dependency package pihole-meta.deb
\[✗\] Installing Pi-hole dependency package
*Error: Unable to install Pi-hole dependency package.
\~$ sudo bash -x /opt/pihole/update.sh*

* *readonly ADMIN_INTERFACE_GIT_URL=https://github.com/pi-hole/web.git*
* *ADMIN_INTERFACE_GIT_URL=https://github.com/pi-hole/web.git*
* *readonly PI_HOLE_GIT_URL=https://github.com/pi-hole/pi-hole.git*
* *PI_HOLE_GIT_URL=https://github.com/pi-hole/pi-hole.git*
* *readonly PI_HOLE_FILES_DIR=/etc/.pihole*
* *PI_HOLE_FILES_DIR=/etc/.pihole*
* *SKIP_INSTALL=true*
* *CHECK_ONLY=false*
* *source '/etc/.pihole/automated install/basic-install.sh'
  ++ set -e
  ++ export PATH+=:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
  ++ PATH+=:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
  ++ trap abort INT QUIT TERM
  ++ : 0
  ++ : 1
  ++ : 255
  +++ cat
  ++ DNS_SERVERS='Google (ECS, DNSSEC);8.8.8.8;8.8.4.4;2001:4860:4860:0:0:0:0:8888 ;2001:4860:4860:0:0:0:0:8844
  OpenDNS (ECS, DNSSEC);208.67.222.222;208.67.220.220;2620:119:35::35;2620:119:53: :53
  Level3;4.2.2.1;4.2.2.2;;
  Comodo;8.26.56.26;8.20.247.20;;
  Quad9 (filtered, DNSSEC);9.9.9.9;149.112.112.112;2620:fe::fe;2620:fe::9
  Quad9 (unfiltered, no DNSSEC);9.9.9.10;149.112.112.10;2620:fe::10;2620:fe::fe:10
  Quad9 (filtered, ECS, DNSSEC);9.9.9.11;149.112.112.11;2620:fe::11;2620:fe::fe:11
  Cloudflare (DNSSEC);1.1.1.1;1.0.0.1;2606:4700:4700::1111;2606:4700:4700::1001'
  +++ cat
  ++ DNS_SERVERS_IPV6_ONLY='Google (ECS, DNSSEC);2001:4860:4860:0:0:0:0:8888;2001: 4860:4860:0:0:0:0:8844
  OpenDNS (ECS, DNSSEC);2620:119:35::35;2620:119:53::53
  Quad9 (filtered, DNSSEC);2620:fe::fe;2620:fe::9
  Quad9 (unfiltered, no DNSSEC);2620:fe::10;2620:fe::fe:10
  Quad9 (filtered, ECS, DNSSEC);2620:fe::11;2620:fe::fe:11
  Cloudflare (DNSSEC);2606:4700:4700::1111;2606:4700:4700::1001'
  ++ installLogLoc=/etc/pihole/install.log
  ++ coltable=/opt/pihole/COL_TABLE
  ++ webroot=/var/www/html
  ++ webInterfaceGitUrl=https://github.com/pi-hole/web.git
  ++ webInterfaceDir=/var/www/html/admin
  ++ piholeGitUrl=https://github.com/pi-hole/pi-hole.git
  ++ PI_HOLE_LOCAL_REPO=/etc/.pihole
  ++ PI_HOLE_FILES=(list piholeDebug piholeLogFlush setupLCD update version gravit y uninstall webpage)
  ++ PI_HOLE_INSTALL_DIR=/opt/pihole
  ++ PI_HOLE_CONFIG_DIR=/etc/pihole
  ++ PI_HOLE_BIN_DIR=/usr/local/bin
  ++ PI_HOLE_V6_CONFIG=/etc/pihole/pihole.toml
  ++ fresh_install=true
  ++ adlistFile=/etc/pihole/adlists.list
  ++ IPV4_ADDRESS=
  ++ IPV6_ADDRESS=
  ++ QUERY_LOGGING=
  ++ PRIVACY_LEVEL=
  ++ PIHOLE_INTERFACE=
  ++ V6_CONF_MIGRATION_DIR=/etc/pihole/migration_backup_v6
  ++ '\[' -z root '\]'
  ++ r=20
  ++ c=70
  ++ PIHOLE_META_VERSION_APT=0.7
  +++ cat
  ++ PIHOLE_META_PACKAGE_CONTROL_APT='Package: pihole-meta
  Version: 0.7
  Maintainer: Pi-hole team <adblock@pi-hole.net>
  Architecture: all
  Description: Pi-hole dependency meta package
  Depends: awk,bash-completion,binutils,ca-certificates,cron|cron-daemon,curl,dial og,bind9-dnsutils|dnsutils,dns-root-data,git,grep,iproute2,iputils-ping,jq,libca p2,libcap2-bin,logrotate,lshw,procps,psmisc,sudo,unzip
  Section: contrib/metapackages
  Priority: optional'
  +++ cat
  ++ PIHOLE_META_PACKAGE_CONTROL_RPM='Name: pihole-meta
  Version: 0.4
  Release: 1
  License: EUPL
  BuildArch: noarch
  Summary: Pi-hole dependency meta package
  Requires: bash-completion,bind-utils,binutils,ca-certificates,chkconfig,cronie,c url,dialog,findutils,gawk,git,grep,iproute,jq,libcap,logrotate,lshw,procps-ng,ps misc,sudo,unzip
  %description
  Pi-hole dependency meta package
  %prep
  %build
  %files
  %install
  %changelog*

* *Thu Dec 18 2025 Pi-hole Team - 0.4*

* *Add logrotate to the list of dependencies*

* *Mon Jul 14 2025 Pi-hole Team - 0.3*

* *Remove nmap-ncat from the list of dependencies*

* *Wed May 28 2025 Pi-hole Team - 0.2*

* *Add gawk to the list of dependencies*

* *Sun Sep 29 2024 Pi-hole Team - 0.1*

* *First version being packaged'
  ++ PIHOLE_META_VERSION_APK=0.3
  ++ PIHOLE_META_DEPS_APK=(bash bash-completion bind-tools binutils coreutils cron ie curl dialog gawk git grep iproute2-minimal iproute2-ss jq libcap logrotate ls cpu lshw ncurses procps-ng psmisc shadow sudo tzdata unzip)
  ++ repair=false
  ++ runUnattended=false
  ++ \[\[-f /opt/pihole/COL_TABLE \]\]
  ++ source /opt/pihole/COL_TABLE*
  +++ '\[' -t 1 '\]'
  ++++ tput colors
  +++ '\[' 8 -ge 8 '\]'
  +++ COL_BOLD=''
  +++ COL_NC=''
  +++ COL_GRAY=''
  +++ COL_RED=''
  +++ COL_GREEN=''
  +++ COL_YELLOW=''
  +++ COL_BLUE=''
  +++ COL_PURPLE=''
  +++ COL_CYAN=''
  +++ TICK='\[✓\]'
  +++ CROSS='\[✗\]'
  +++ INFO='\[i\]'
  +++ QST='\[?\]'
  +++ OVER='\\r'
  ++ \[\[true != true \]\]

* source /opt/pihole/COL_TABLE
  ++ '\[' -t 1 '\]'
  +++ tput colors
  ++ '\[' 8 -ge 8 '\]'
  ++ COL_BOLD=''
  ++ COL_NC=''
  ++ COL_GRAY=''
  ++ COL_RED=''
  ++ COL_GREEN=''
  ++ COL_YELLOW=''
  ++ COL_BLUE=''
  ++ COL_PURPLE=''
  ++ COL_CYAN=''
  ++ TICK='\[✓\]'
  ++ CROSS='\[✗\]'
  ++ INFO='\[i\]'
  ++ QST='\[?\]'
  ++ OVER='\\r'
* source /opt/pihole/utils.sh
  ++ getFTLConfigValue webserver.paths.webroot
  ++ pihole-FTL --config -q webserver.paths.webroot
  ++ cat
  ++ getFTLConfigValue webserver.paths.webhome
  ++ pihole-FTL --config -q webserver.paths.webhome
  ++ cat
* ADMIN_INTERFACE_DIR=/var/www/html/admin/
* readonly ADMIN_INTERFACE_DIR
* \[\['' == --\\c\\h\\e\\c\\k-\\o\\n\\l\\y \]\]
* main
* local 'basicError=\\n Unable to complete update, please contact Pi-hole Suppor t'
* local core_update
* local web_update
* local FTL_update
* core_update=false
* web_update=false
* FTL_update=false
* package_manager_detect
* is_command apt-get
* local check_command=apt-get
* command -v apt-get
* PKG_MANAGER=apt-get
* UPDATE_PKG_CACHE='apt-get update'
* PKG_INSTALL='apt-get -qq --no-install-recommends install'
* PKG_REMOVE='apt-get -y remove --purge'
* build_dependency_package
* is_command apk
* local check_command=apk
* command -v apk
* rm -rf '/tmp/pihole-meta\_\*'
* local tempdir
  ++ mktemp -d /tmp/pihole-meta_XXXXX
* tempdir=/tmp/pihole-meta_G1zSa
* chmod 0755 /tmp/pihole-meta_G1zSa
* is_command apt-get
* local check_command=apt-get
* command -v apt-get
* pushd /tmp
* rm -f /tmp/pihole-meta.deb
* mkdir -p /tmp/pihole-meta_G1zSa/DEBIAN
* chmod 0755 /tmp/pihole-meta_G1zSa/DEBIAN
* touch /tmp/pihole-meta_G1zSa/DEBIAN/control
* echo 'Package: pihole-meta
  Version: 0.7
  Maintainer: Pi-hole team <adblock@pi-hole.net>
  Architecture: all
  Description: Pi-hole dependency meta package
  Depends: awk,bash-completion,binutils,ca-certificates,cron|cron-daemon,curl,dial og,bind9-dnsutils|dnsutils,dns-root-data,git,grep,iproute2,iputils-ping,jq,libca p2,libcap2-bin,logrotate,lshw,procps,psmisc,sudo,unzip
  Section: contrib/metapackages
  Priority: optional'
* local 'str=Building dependency package pihole-meta.deb'
* printf ' %b %s...' '\[i\]' 'Building dependency package pihole-meta.deb'
  \[i\] Building dependency package pihole-meta.deb...+ dpkg-deb --build --root-ow ner-group /tmp/pihole-meta_G1zSa pihole-meta.deb
* printf '%b %b %s\\n' '\\r' '\[✓\]' 'Building dependency package pihole-meta.deb'
  \[✓\] Building dependency package pihole-meta.deb
* popd
* rm -rf /tmp/pihole-meta_G1zSa
* install_dependent_packages
* local 'str=Installing Pi-hole dependency package'
* printf ' %b %s...' '\[i\]' 'Installing Pi-hole dependency package'
  \[i\] Installing Pi-hole dependency package...+ is_command apt-get
* local check_command=apt-get
* command -v apt-get
* '\[' -f /tmp/pihole-meta.deb '\]'
* eval 'apt-get -qq --no-install-recommends install' /tmp/pihole-meta.deb
* printf '%b %b %s\\n' '\\r' '\[✗\]' 'Installing Pi-hole dependency package'
  \[✗\] Installing Pi-hole dependency package
* printf ' %b Error: Unable to install Pi-hole dependency package.\\n' ''
  Error: Unable to install Pi-hole dependency package.

```

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 20, 2026, 2:45pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/2 "2026-09-20T14:45:44Z")

</div>

Which distribution and release are you running?

---

<div class="post-metadata">

**Author:** ![deHakkelaar](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/dehakkelaar/32/674_2.png) [@deHakkelaar](https://discourse.pi-hole.net/u/deHakkelaar)\
**Post date:** [September 20, 2026, 6:20pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/3 "2026-09-20T18:20:04Z")

</div>

> [@Genisis](#):
>
> `Depends: awk,bash-completion,binutils,ca-certificates,cron|cron-daemon,curl,dial og,bind9-dnsutils|dnsutils,dns-root-data,git,grep,iproute2,iputils-ping,jq,libca p2,libcap2-bin,logrotate,lshw,procps,psmisc,sudo,unzip`

Try installing a couple of above dependency packages manually with below to see if it fails with an error?

`sudo apt-get --no-install-recommends install bash-completion curl`

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 21, 2026, 1:14am UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/4 "2026-09-21T01:14:19Z")

</div>

I've run in to a glitch with Debian 11 that fails because `git` depends on `perl` and there are no valid candidates for `perl` anymore.

If OP is on Deb 11, then a check of `apt policy perl` would show if this ticket is related to that glitch.

---

<div class="post-metadata">

**Author:** ![deHakkelaar](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/dehakkelaar/32/674_2.png) [@deHakkelaar](https://discourse.pi-hole.net/u/deHakkelaar)\
**Post date:** [September 21, 2026, 5:10pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/5 "2026-09-21T17:10:58Z")

</div>

> [@DanSchaper](#):
>
> no valid candidates for `perl` anymore

Blast, I have Bookworm, Buster and even an old Stretch but no Bullseye to tinker.  
Missing Perl is a serious one bc that is a "required" one:

```auto
$ apt list ~prequired
Listing... Done
[..]
perl-base/oldstable,now 5.36.0-7+deb12u3 amd64 [installed]

```

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 21, 2026, 6:05pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/6 "2026-09-21T18:05:39Z")

</div>

Bullseye is `perl` 5.32.1

 ![image](https://discourse-cdn.pi-hole.net/uploads/default/original/3X/6/7/67c363375b2e8d2088bee2b89c9e8aa8c4c46ae3.png)

But that package doesn't exist:

 ![image](https://discourse-cdn.pi-hole.net/uploads/default/original/3X/8/d/8d09e749a17f68e38cc1f855eba8952aae59cee4.png)

The URL is: [http://security.debian.org/debian-security/pool/updates/main/p/perl/perl\_5.32.1-4+deb11u5\_amd64.deb](http://security.debian.org/debian-security/pool/updates/main/p/perl/perl_5.32.1-4+deb11u5_amd64.deb)

That's a 404.

The repo doesn't go beyond Deb 12

 ![image](https://discourse-cdn.pi-hole.net/uploads/default/original/3X/5/7/57464cd2d718afaddbb242e72ce83d1aa5fd8292.png)

---

<div class="post-metadata">

**Author:** ![darkexplosiveqwx](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/darkexplosiveqwx/32/45118_2.png) [@darkexplosiveqwx](https://discourse.pi-hole.net/u/darkexplosiveqwx)\
**Post date:** [September 21, 2026, 7:16pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/7 "2026-09-21T19:16:20Z")

</div>

Linking [Improve gravity.db schema - Pull Request #6575 - pi-hole/pi-hole - GitHub](https://github.com/pi-hole/pi-hole/pull/6575) because Debian 11 is also a topic there

---

<div class="post-metadata">

**Author:** ![rdwebdesign](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/rdwebdesign/32/51363_2.png) [@rdwebdesign](https://discourse.pi-hole.net/u/rdwebdesign)\
**Post date:** [September 21, 2026, 7:20pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/8 "2026-09-21T19:20:01Z")

</div>

This file can be found on the `archive.debian.org` domain, but I'm not sure if this will work: [http://archive.debian.org/debian/pool/main/p/perl/perl-base\_5.32.1-4+deb11u3\_amd64.deb](http://archive.debian.org/debian/pool/main/p/perl/perl-base_5.32.1-4+deb11u3_amd64.deb)

Is it possible to change the apt repos to use `archive.debian.org`?

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 21, 2026, 8:13pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/9 "2026-09-21T20:13:17Z")

</div>

Sure, you can set `sources.list` (or equivalent) to what ever repo you'd like. The problem would then be that `deb11u3` will not satisfy `deb11u5` as `apt` requests. `apt` will still get a 404 because it does not know to look for alternatives. And `deb11u3` is missing the security patches that `u4` and `u5` applied.

---

<div class="post-metadata">

**Author:** ![nero355](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/nero355/32/54774_2.png) [@nero355](https://discourse.pi-hole.net/u/nero355)\
**Post date:** [September 21, 2026, 8:35pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/10 "2026-09-21T20:35:52Z")

</div>

I have once downloaded something for Ubuntu 20.04 or so in order to install it in Debian 13 because I simply needed it to continue : Would that work in this case too ?!

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 21, 2026, 9:37pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/11 "2026-09-21T21:37:11Z")

</div>

It may work.

But, if my understanding is correct, then Debian have decided to not update Deb 11 and so I would not consider it to be a safe distro version anymore.

---

<div class="post-metadata">

**Author:** ![deHakkelaar](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/dehakkelaar/32/674_2.png) [@deHakkelaar](https://discourse.pi-hole.net/u/deHakkelaar)\
**Post date:** [September 21, 2026, 9:50pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/12 "2026-09-21T21:50:19Z")

</div>

> [@DanSchaper](#):
>
> It may work.

If lucky.  
Usually you get trapped in dependency forest 😉

```auto
$ apt depends perl
perl
  PreDepends: dpkg (>= 1.17.17)
  Depends: perl-base (= 5.36.0-7+deb12u3)
  Depends: perl-modules-5.36 (>= 5.36.0-7+deb12u3)
  Depends: libperl5.36 (= 5.36.0-7+deb12u3)

```

```auto
$ apt depends perl-base
perl-base
  PreDepends: libc6 (>= 2.35)
  PreDepends: libcrypt1 (>= 1:4.1.0)
  PreDepends: dpkg (>= 1.17.17)

```

Etc.

---

<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 22, 2026, 12:57am UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/13 "2026-09-22T00:57:57Z")

</div>

> [@deHakkelaar](#):
>
> Usually you get trapped in dependency forest

You mean dependency hell... (Next door to DLL hell...)

---

<div class="post-metadata">

**Author:** ![nero355](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/nero355/32/54774_2.png) [@nero355](https://discourse.pi-hole.net/u/nero355)\
**Post date:** [September 22, 2026, 1:10pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/14 "2026-09-22T13:10:04Z")

</div>

> [@deHakkelaar](#):
>
> If lucky.  
> Usually you get trapped in dependency forest 😉

It was this damn thing at the time : [How install libssl1.1 on ubuntu 22.04 · GitHub](https://gist.github.com/joulgs/c8a85bb462f48ffc2044dd878ecaa786)

I needed it for the Ubiquiti UniFi Controller to be able to mix and match some stuff in order to get it working on a CPU that does not have certain instructions onboard...

It was quite the ride... LOL! 🤣

---

<div class="post-metadata">

**Author:** ![Genisis](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/g/f475e1/32.png) [@Genisis](https://discourse.pi-hole.net/u/Genisis)\
**Post date:** [September 26, 2026, 3:17pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/15 "2026-09-26T15:17:05Z")

</div>

Latest version of Mint

---

<div class="post-metadata">

**Author:** ![Genisis](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/g/f475e1/32.png) [@Genisis](https://discourse.pi-hole.net/u/Genisis)\
**Post date:** [September 26, 2026, 3:20pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/16 "2026-09-26T15:20:41Z")

</div>

```auto
Get:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 curl amd64 8.5.0 -2ubuntu10.15 \[227 kB\]
Get:2 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 libcurl4t64 amd6 4 8.5.0-2ubuntu10.15 \[343 kB\]
Get:3 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 libcurl3t64-gnut ls amd64 8.5.0-2ubuntu10.15 \[336 kB\]
Fetched 906 kB in 1s (1,767 kB/s)
(Reading database… 1074746 files and directories currently installed.)
Preparing to unpack …/curl_8.5.0-2ubuntu10.15_amd64.deb…
Unpacking curl (8.5.0-2ubuntu10.15) over (8.5.0-2ubuntu10.13)…
Preparing to unpack …/libcurl4t64_8.5.0-2ubuntu10.15_amd64.deb…
Unpacking libcurl4t64:amd64 (8.5.0-2ubuntu10.15) over (8.5.0-2ubuntu10.13)…
Preparing to unpack …/libcurl3t64-gnutls_8.5.0-2ubuntu10.15_amd64.deb…
Unpacking libcurl3t64-gnutls:amd64 (8.5.0-2ubuntu10.15) over (8.5.0-2ubuntu10.13 )…
Setting up libcurl4t64:amd64 (8.5.0-2ubuntu10.15)…
Setting up crowdsec-firewall-bouncer-nftables (0.0.36)…
***Job for crowdsec-firewall-bouncer.service failed because the control process exited with error code.***
See "systemctl status crowdsec-firewall-bouncer.service" and "journalctl -xeu cr owdsec-firewall-bouncer.service" for details.

Error.......

```

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<div class="post-metadata">

**Author:** ![DanSchaper](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/danschaper/32/91_2.png) [@DanSchaper](https://discourse.pi-hole.net/u/DanSchaper)\
**Post date:** [September 26, 2026, 5:10pm UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/17 "2026-09-26T17:10:16Z")

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> [@Genisis](#):
>
> ```auto
> **Job for crowdsec-firewall-bouncer.service failed because the control process exited with error code.**
> See "systemctl status crowdsec-firewall-bouncer.service" and "journalctl -xeu cr owdsec-firewall-bouncer.service" for details.
> 
> ```

That is an issue with the crowdsec firewall service and not with Pi-hole. We do not install when there is an underlying problem with the server's operating system.

The final line of the quote explains how to research further.

`sudo systemctl status --full --no-pager crowdsec-firewall-bouncer.service`

and  
` sudo journalctl -xeu crowdsec-firewall-bouncer.service`

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**Author:** ![Genisis](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/g/f475e1/32.png) [@Genisis](https://discourse.pi-hole.net/u/Genisis)\
**Post date:** [October 10, 2026, 12:29am UTC](https://discourse.pi-hole.net/t/unable-to-install-pi-hole-dependency-package/87664/18 "2026-10-10T00:29:36Z")

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Thank you Dan. Problem solved.