# OpenSSL Error When Trying to Install Bootware zbcli tool on SEN-400 with Bullseye

**URL:** https://community.zymbit.com/t/openssl-error-when-trying-to-install-bootware-zbcli-tool-on-sen-400-with-bullseye/1789
**Category:** Secure Edge Nodes
**Created:** [March 30, 2026, 2:56pm UTC](https://community.zymbit.com/t/openssl-error-when-trying-to-install-bootware-zbcli-tool-on-sen-400-with-bullseye/1789 "2026-03-30T14:56:35Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@Matt](https://community.zymbit.com/u/Matt)
#### Post date: [March 30, 2026, 2:56pm UTC](https://community.zymbit.com/t/openssl-error-when-trying-to-install-bootware-zbcli-tool-on-sen-400-with-bullseye/1789/1 "2026-03-30T14:56:35Z")

</div>

I’m trying to install the zbcli Bootware management tool on my SEN-400 running Bullseye and it keep complaining that I don’t have OpenSSL 3 installed (this is expected because there is no OpenSSL 3 for Bullseye)

This is a fairly early example of the SEN-400 I believe. When I run “vcgencmd bootloader\_version” I get this output:

> 2022/07/14 19:58:04  
> version 2b28285b111ba2748f021d5a294125ca12376f10 (release)  
> timestamp 1657825084  
> update-time 0  
> capabilities 0x0000007f

All my Zymbit and OS packages are up to date, I’ve tried running this to make sure the zymbit packages are up to date:

> export distro=bullseye
> 
> curl -fsSL [https://s3.amazonaws.com/zk-sw-repo/install\_zk\_sw.sh](https://s3.amazonaws.com/zk-sw-repo/install_zk_sw.sh) | sudo -E bash

When I run “curl -sSf [https://raw.githubusercontent.com/zymbit-applications/zb-bin/main/install.sh](https://raw.githubusercontent.com/zymbit-applications/zb-bin/main/install.sh) | sudo bash” I get this output:

> zb-install.sh: bootstrapping the zbcli installer  
> ./zb-installer: error while loading shared libraries: libssl.so.3: cannot open shared object file: No such file or directory  
> zb-install.sh: cleaning up

This basically means it’s looking for OpenSSL 3 and can’t find it so it fails. Looking on the [Getting Started: Bootware |](https://docs.zymbit.com/bootware/1.3.2/getting-started/) page it shows that Bullseye is supported but that doesn’t seem to be the case.

Has anyone successfully managed to install zbcli tools on an SEN-400 running Bullseye?

For reference, here’s the distro information:

```bash
~> cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
~> uname -a
Linux 100000003dadb661 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux

```