add rhel8 installation script

[nmlsdev]

No description provided.

[mgogoulos]

Looks OK, I'd like to test it and perform an installation. What OS did you use? RHEL 8 or something else?

Thanks

[nmlsdev]

Installed using Rocky 8 Minimal

Commands run before installation

sudo -iu root
git clone -b v2.0 'https://github.com/nmlsdev/mediacms' /srv/mediacms/
cd /srv/mediacms/
chmod +x install-rhel.sh
./install-rhel.sh

[mgogoulos]

Installed it on a Rocky Linux 8 on Hetzner and the installation completed, so I am going to merge it since others will find value on it.

Keep in mind that video transcoding on my files has failed, and after checking logs I see this message:

Option 'force_divisible_by' not found

Indicating some issue with ffmpeg

[nmlsdev]

Installed it on a Rocky Linux 8 on Hetzner and the installation completed, so I am going to merge it since others will find value on it.

Keep in mind that video transcoding on my files has failed, and after checking logs I see this message:

Option 'force_divisible_by' not found

Indicating some issue with ffmpeg

I've run into this problem as well. Currently my only workaround is to comment out line 548 in files/helpers.py:
# filters.append(scale_filter_str)