Netinstall linux 7.7 bootp not working

Hello,

I am trying to run netinstall 7.7 to reinitialise my hap AX3 device with bootp, but it does not work.
The hap AX3 has been upgraded to Router OS 7.7.

The script is the same as what I used for 6.x netinstall, so please help me.

#!/bin/bash
systemctl stop firewalld
IFNAME=enp0s31f6
/sbin/ip addr replace 192.168.88.2/24 dev $IFNAME
/sbin/ip link set dev $IFNAME up
/sbin/ip route add default via 192.168.88.1

./netinstall-cli -r -a 192.168.88.1 -i $IFNAME routeros-7.7-arm64.npk wifiwave2-7.7-arm64.npk

Kind regards,
FF

Just a quick note that I bricked the hap AX3 twice and had to reboot in factory mode. The Netinstall never displayed any information indicating that netinstall was pending and the HAP was bricked twice. So I stop here.

All (Netinstall and RouterOS) were in latest 7.8beta2. And previously under 7.7 I also bricked the router once.

So I am giving up with netinstall unless someone from Mikrotik answers and gives me some clues.

https://forum.mikrotik.com/viewtopic.php?t=182373

Paragraph H

Trick
Keep pressing reset until the device shows up in netinstall (works for both Windows and Linux)

Thank you for these valuable information, I will try to start Netboot device first pressing reset button and start netinstall server.
Is there a way to obtain serial console on a device like the hap AX3 which has only USB ports?

Not sure if WOOBM. Probably not as it needs USB drivers up&running.

But no, true serial console is waaay out of reach on these devices.

Thank you for these information.
I purchased a small dump 5port switch as I was using a direct cable and that may have created problems.
Will keep you informed …

Also I would like to understand something.
Why should I use Netinstall vers 7.x.y with Router OS version 7.x.y and not an older netinstall?