ping 0.0.0.0 and ping 8.8.8.8 work

That means you don't have a working nameserver so check /etc/resolv.conf.

sudo apt-get install wireless-tools
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  libiw30
The following NEW packages will be installed:
  libiw30 wireless-tools
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 134 kB of archives.
After this operation, 358 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Err:1 http://deb.devuan.org/merged chimaera/main amd64 libiw30 amd64 30~pre9-13.1
  Could not resolve 'deb.devuan.org'
Err:2 http://deb.devuan.org/merged chimaera/main amd64 wireless-tools amd64 30~pre9-13.1
  Could not resolve 'deb.devuan.org'
E: Failed to fetch http://deb.devuan.org/merged/pool/DEBIAN/main/w/wireless-tools/libiw30_30%7epre9-13.1_amd64.deb  Could not resolve 'deb.devuan.org'
E: Failed to fetch http://deb.devuan.org/merged/pool/DEBIAN/main/w/wireless-tools/wireless-tools_30%7epre9-13.1_amd64.deb  Could not resolve 'deb.devuan.org'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

sudo apt update error

Err:1 http://deb.devuan.org/merged chimaera InRelease                          
  Could not resolve 'deb.devuan.org'
Err:2 https://brave-browser-apt-release.s3.brave.com stable InRelease          
  Could not resolve 'brave-browser-apt-release.s3.brave.com'
Err:3 http://deb.devuan.org/merged chimaera-updates InRelease                  
  Could not resolve 'deb.devuan.org'
Err:4 http://deb.devuan.org/merged chimaera-security InRelease
  Could not resolve 'deb.devuan.org'
Err:5 http://deb.devuan.org/merged chimaera-backports InRelease
  Could not resolve 'deb.devuan.org'

Failed to fetch http://deb.devuan.org/merged/dists/chimaera/InRelease 
 Could not resolve 'deb.devuan.org'

ping 0.0.0.0 and ping 8.8.8.8 work.

devuan server down?

mount /dev/sbd /mnt
sudo apt-get -o <base os media file path to /etc/apt/sources.list>=/dev/sdb update

command line fetching the live disk sources.list file, how to fetch from base os path?

mixing stable with newer kernels from sysnaptic, which get patch updates upgrades. no testing or rolling config

That could very well have broken your system, depending on the exact commands used. Please provide those commands.

I have no idea what this means, sorry. Can you not ask about this on a forum in your native language?

rescue/enable=true in live iso not lauching grub rescue graphical interface, launch command line grub

sudo fsck -p fails to fix with recovery mode, live iso and live iso rescue mode.

So the problem is not caused by filesystem corruption then. No surprise there.

A soname error would suggest a FrankenDevuan. Have you been mixing stable with testing/unstable?

The rescue/enable=true parameter only works in the live ISO and that would only detect wlan0 if you used a version which includes non-free firmware. Did you try that?

Using init=/bin/bash would not start any services so a lack of network would be expected in that case.

booting into grub rescue mode with shift key, init=/bin/bash, F10

not showing grub rescue menu, command line only in large font. rescue and rescue/enable=true not launching rescue menu.

rescue mode not detecting wlan0.

sudo startx launch

Don't do that.

Use "rescue mode" from the Devuan ISO image instead:

https://www.debian.org/releases/bullsey … 06.en.html

I can't make much sense of the rest of the post though. Sorry.

error output

sudo startx launch

xinit connecting to x server waiting for x server to shut down 

internal details output

(EE) Failed to load /usr/lib/xorg/modules/imput/libinput_drv.so:libinput.so.10:cannot 
open shared object file: no such file or directory failed to load module libinput (loader failed 0) 

In recovery mode all gnome packages were removed. no access to graphical recovery mode.

unsuccesful at nmcli wifi connect in recovery mode, no apt update, upgrade net access to fix.

nmcli error

 nmcli dev wifi connect <name>
Error: could not creat NMclient: object could not connect: no such file or directory

nmcli con up <name>
error connection activation failed no suitable device found for this connection 
(device etho not available because profile is not compatiable with device (missmatching interface name) 

all nmcli trouble shooting forum command lines fail to connect.

new stable libinput debian packages are installed in /home/usr
dpkg -i  and tar xf fail