Created attachment 654078 [details]
/var/log/YaST2/signal

I'm trying to set a boot password using yast2 bootloader (on a fresh tumbleweed
installation, installed today).

In the "bootloader options" tab, I select
    [x] protect bootloader with password
    [x] protect entry modification only
and type the password twice.

When clicking OK, I get an error dialog saying

    Internal error. Please report a bug report with logs.
    Details: Failed to create encrypted password for grub2. 
    Command output: grub2-mkpasswd-pbkdf2: error: failure to read password.

    Caller:  /usr/share/YaST2/lib/bootloader/grub2pwd.rb:130:in `encrypt'

The y2log from the yast2 bootloader run and /var/log/YaST2/signal are attached.
Other files in /var/log/YaST2 didn't change.