no boot after hostname change

I'm using raspberrypi 5 with PI OS Lite.

I tried to change to hostname from "raspberrypi" to something else and since than I had no boot.

To fix that, I changed the hostname (`/etc/hostname`) manually back to "raspberrypi" but still no boot.

What can I do?

updates:

1. tried to restart my router - no luck

2. changed back to "raspberrypi" in:

• /etc/hostname

• /etc/hosts
• /etc/openmediavault/config.xml

no luck,

Quote from donh

Can you hookup a monitor or hdmi screen to see the messages when it stops? Maybe the ip has changed and it is just on a different ip. If no monitor search for listing all ip's on your network.

Good luck

no GUI so no messages on HDMI (PI OS Lite). Tried to hook it up but nothing.

I've attached a static IP to device's mac address, it's not showing up in the router's network map

Quote from Soma

The router is probably still binded to the old hostname on the same MAC and its clashing.

Run an IP scanner on the network or just reboot the router

Tried it, no luck

It happened again - after running omv-firstaid (I removed a reverse proxy that I had and needed to change the ports of OMV to the default) - Again my PI is unreachable and seems like again I need to reinstall everything.

Is there any solution?