Hello, could someone help me install fb 2.5 on Debian 9 (buster)?

I've installed Firebird from https://github.com/FirebirdSQL/firebird/releases/download/R2_5_9/FirebirdSS-2.5.9.27139-0.amd64.rpm

After run install.sh I got:

/opt/firebird/WhatsNew
./usr/sbin/rcfirebird
./etc/init.d/firebird
Done.
Deleting...
Done.
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start runlevel arguments (2 3 5) do not match firebird Default-Start values (2 3 4 5)
Starting Firebird server:
Fixing firebird's shell to /bin/sh

Starting Firebird server: Please enter new password for SYSDBA user: master
use gsec -? to get help
Unable to complete network request to host "localhost".
Failed to establish a connection.
unable to open database

Please enter new password for SYSDBA user:
Please enter new password for SYSDBA user:
[^C]

Netstat shows nothing.

After start /opt/bin/firebird/fbserver manually I got:

root@debian9:/opt/firebird/bin# ./fbserver
I/O error during "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file " "open" operation for file "own
/firebird/fb_trace_jGV7dm"
-Error while trying to open file
-No such file or directory
"
-Error while trying to open file
-No such file or directory
"
-Error while trying to open file
-No such file or directory
"
-Error while trying to open file
-No such file or directory

What can I du to run firebird server? Edit /opt/firebird/firebird.conf?