Hostname v buster

[Gene Heskett <gheskett@shentel.net>]

Greetings;

I just updated a pi3 to buster, presumeably rc2.

But I used RealtimePi to install a 4.19.50-rt-v7 kernel into the image.

That conversion insists the hostname is realtimepi.  In stretch I could 
fix it to the name I'm used to by setting hostname, then sudo chattr +i 
hostname, and it would stick over a reboot, but not in buster, despite 
the immutable bit being set, its been reset to realtimepi after a 
reboot, this despite an lsattr still showing the i bit is still set!

So that I need help with, and since my network is static, avahi is 
screwing with my routes, and that disables my dns lookups outside of my 
local network because it issues a ping to an outside address from 
the .local address in the 169/24 block.

So I've got to nuke whatever is sourceing the 169 junk to the ifup 
command.

Help please & many thanks.
 
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>