Syntax errors when installing deb

Hi everyone, just wanted to report this issue I'm getting while installing hyperion via deb.

This is the command I run:

curl -O -L https://github.com/hyperion-project/hyperion.ng/releases/download/2.0.0-alpha.9/Hyperion-2.0.0-alpha.9-Linux-armv7l.deb
sudo apt install -y ./Hyperion-2.0.0-alpha.9-Linux-armv7l.deb

This is the output I get:

Preparing to unpack .../Hyperion-2.0.0-alpha.9-Linux-armv7l.deb ...
---Hyperion ambient light preinst ---
/var/lib/dpkg/tmp.ci/preinst: 6: /var/lib/dpkg/tmp.ci/preinst: root: not found
Unpacking hyperion (2.0.0) ...
Setting up libp8-platform2:armhf (2.1.0.1+dfsg1-2) ...
Setting up libcec4:armhf (4.0.4+dfsg1-2+rpi1+rpt1) ...
Setting up hyperion (2.0.0) ...
---Hyperion ambient light postinstall ---
/usr/bin/grep: /proc/cpuinfo: No such file or directory
/usr/bin/grep: /etc/mtab: No such file or directory
Unknown QEMU_IFLA_INFO_KIND ipip
Unknown QEMU_IFLA_INFO_KIND ip6tnl
/var/lib/dpkg/info/hyperion.postinst: 32: /var/lib/dpkg/info/hyperion.postinst: root: not found
/var/lib/dpkg/info/hyperion.postinst: 38: [: -eq: unexpected operator
/usr/bin/grep: /proc/1/comm: No such file or directory
---> init deamon: sysV
---> Install Hyperion desktop icons
/var/lib/dpkg/info/hyperion.postinst: 105: [: -eq: unexpected operator

I'm using https://github.com/guysoft/CustomPiOS to create a custom image for raspberry pi, not sure this helps figuring out the issue

hyperion-project / hyperion.ng

Syntax errors when installing deb #1155