"egrep is obsolescent" and "open failure" - Fedora 42

[gladiston]

$ ls -l
total 17764
-rw-r--r--. 1 gsantana gsantana 18126648 jul 14 05:45 buildroot.tar.gz
-rwxr-xr-x. 1 gsantana gsantana    40836 jul 14 05:45 install.sh
-rw-r--r--. 1 gsantana gsantana    20337 jul 14 05:45 manifest.txt
$ sudo ./install.sh 
[sudo] senha para gsantana: 

Firebird 5.0.3.1683-0.x64 Installation

Press Enter to start installation or ^C to abort
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
egrep: warning: egrep is obsolescent; using grep -E
Archiving...
./usr/include/ib_util.h
./usr/include/iberror.h
./usr/include/ibase.h
Done.
Deleting...
Done.
Extracting install data
tar: ./usr/include/firebird: Função open falhou: Arquivo existe
tar: Saindo com status de falha em razão de erros anteriores
Updated /etc/services
Please enter new password for SYSDBA user: masterkey
Install completed

NOTE: Installation is done(with errors above), but service not enabled and not marked as active after boot. Necessary to do manually: sudo systemctl enable firebird sudo systemctl start firebird

Tested with Fedora Linux 42 with all updates.

[AlexPeshkoff]

I've replaced deprecated egrep in install scripts. What about tar: ./usr/include/firebird: Função open falhou: Arquivo existe looks like you alreary have directory /usr/include/firebird and therefore required symlink /usr/include/firebird -> /opt/firebird/include/firebird can't be created. Cab you check?