Issue ssh login and LuCi login after mounting new partition myBookLiveDuo

hello everyone! Could someone help me with the following problem?
I installed openwrt 24.10.0 on a MyBooklLve Duo 2TB HDD.
Everything is fine (I have installed samba and file system utilities) until I mounted a formatted partition (of the same disk) and reboot the system.
I can't login anymore either via ssh or LuCi web interface. It says "permission denied". I'm 100% sure I'm using the correct password because I used it before the partition mount operation.

Any Idea?

Thanks

Did you just mount the partition? Or did you add it to fstab also?

Hi,
I have simply created the partition with fdisk and formatted with makefs.EXT4
I created a directory under /mnt/ and mounted the partition trough LuCi web Interface. I Clicked Save and Apply and reboot the system.

I don't know what the Interface do in the background.

I think i can try to mount the partition trough command line with something like:

mount /dev/sda3 /mnt/myDir, but to try I have to flash the openWrt Image on disk once again.

Just mounting a drive under /mnt should have no side effect, much less block logins or change permissions somewhere else. Perhaps you changed something else, and it only took effect when you rebooted.

I would try to put the device into failsafe mode, delete the entry at "/etc/config/fstab", and reboot. If that fails, perhaps you need to go back to the default settings, and start over again.

I tried to re-install openwrt... After mounting the partition and reboot the system the device stop working. Can't login with ssh... Access Denied and Web Interface says: "

Not Found

The requested URL /cgi-bin/luci/ was not found on this server.

I followed the guide. I have installed samba and nothing else.

I think there is something wrong, but I don't have any Idea where to begin to search. I will switch back to the original WD firmware for the moment.