LS-WVL how to enable SSH to that one or how to edit files on that one with the -s option?

Hi, how are you?

There are numerous forum posts how to enable SMB2 on Buffalo NAS systems that by have it on SMB1 from factory. Have also found some for the version I have LS-WVL. All the posts are that one should enable SSH and then edit the file:
/etc/init.d/smb.sh

When I try to go with the -o option:

-o       ... open the device by sending 'telnetd' and 'passwd -d root',
                thus enabling telnet and clearing the root password

then it fails on my system, like this:

java -jar acp_commander.jar -t 192.168.8.131 -o
Welcome to ACP Commander v0.6 (2021), the tool for Buffalo stock firmware control!

Resetting root password...      Password changed.

Starting telnetd...
........Failed!
Unable to detect telnet server.
This could be a firewall issue but more likely this model does not have a telnetd binary installed.
 Consider using "-s" as an alternative.

And when I try to use the -s option
-s ... rudimentary interactive shell
starts fine:

java -jar acp_commander.jar -t 192.168.8.131 -s
Welcome to ACP Commander v0.6 (2021), the tool for Buffalo stock firmware control!

Enter commands to device, enter 'exit' to leave
/>

but I do not know which text editor i can use?
vi

/>vi /etc/init.d/smb.sh
A SocketTimeoutException was thrown which usually indicates bad firewall settings.
Check that UDP port 22936 can be used by ACP Commander to send/receive and that your device is powered on and has booted successfully.
[ERROR] Exception: SocketTimeoutException (Receive timed out) [ACP Send/Receive (Packet:8A10 = ACP_CMD)]

crashes the nas so that i need to hard reset it.

So is there some way I could get SSH to LS-WVL or if not then which text editor to use to edit files with the -s option? Or maybe there are other options to get it done?

[1000001101000]

I think this process usually works to enable SSH on that series:
https://github.com/rogers0/OpenLinkstation/tree/master/0_get-ssh

The other method I've used is to transfer over a busybox binary which includes telnetd then launch it with acp_commander. You can get a static-linked armv5 binary here:
https://busybox.net/downloads/binaries/1.21.1/

I believe if you drop it in /tmp/ acp_commander will start it with -i as one of the things it tries.

[thopy]

I had the same behaviour with my LS-WVLA82 and Firmware 1.75.
I found out that the acp-commander -s option does what it takes. I got a command prompt and could browse the file system. Yes, I could not start vi with smb.sh but I used sed -i to edit the file anyway. After adding the desired line of code into the smb.sh (See this page:https://www.computerkram.net/2020/05/12/buffalo-linkstation-ls-qvl-smb-2-aktivieren/) I could see the files in Windows 10 Explorer which was my aim (no ssh access needed, seems to be tricky. But probably there is a similar way for that.)

I used
sed -i '57G' /etc/init.d/smb.sh
to create a new line just before the closing } (which is line 57 in my case. I copied the file into mnt/array1 and downloaded it with filezilla and sftp to find out the line) and inserted into this line the desired code with this command:
sed -i "58 s/$/\/bin\/sed -i '3i max protocol = SMB2' \/etc\/samba\/smb.conf/" /etc/init.d/smb.sh
Unfortunately I hat to use backslashes to hide the slashes of the paths but it worked. ;-)

[1000001101000]

Cheers