--- lbbs/INSTALL.md	2025/11/07 07:27:36	1.6
+++ lbbs/INSTALL.md	2025/11/08 15:37:45	1.7
@@ -7,51 +7,53 @@ To install LBBS, please perform the foll
    It is highly recommended to finish the configuration steps of web version first and make sure those features could work properly.
 
 1) Common requirements  
-   gcc >= 14.2.0  
+   gcc >= 14.2  
    autoconf >= 2.68  
    automake >= 1.16  
-   libssh >= 0.11.1  
-   PHP >= 8.2  
-   MySQL >= 8.4
+   libssh >= 0.11  
+   pcre2 >= 10.38  
+   php >= 8.2  
+   mysql >= 8.4  
 
-2) Extract the source files from a tarball or export from GitHub  
+3) Extract the source files from a tarball or export from GitHub  
    Run the following command to set up the autoconf/automake environment,  
    sh ./autogen.sh
 
-3) Compile source files  
-   export LBBS_HOME_DIR=/usr/local/lbbs
+4) Compile source files  
+   export LBBS_HOME_DIR=/usr/local/lbbs  
    ./configure --prefix=$LBBS_HOME_DIR  
    make
 
-4) Create user and group  
+5) Create user and group  
    sudo useradd bbs
 
-5) Install binary files and data files  
+6) Install binary files and data files  
    sudo make install  
    chown -R bbs:bbs $LBBS_HOME_DIR
 
-6) Modify following configuration files  
+7) Modify following configuration files  
    Default configuration files is saved as *.default, you should rename them first.  
    $LBBS_HOME_DIR/conf/bbsd.conf  
    $LBBS_HOME_DIR/conf/badwords.conf  
    $LBBS_HOME_DIR/utils/conf/db_conn.conf.php  
 
-7) Generate menu configuration file with section data by running the script  
+8) Generate menu configuration file with section data by running the script  
    sudo -u bbs php $LBBS_HOME_DIR/utils/bin/gen_section_menu.php  
    sudo -u bbs php $LBBS_HOME_DIR/utils/bin/gen_ex_list.php  
 
-8) Create SSH2 RSA certificate  
+9) Create SSH2 RSA certificate  
    ssh-keygen -t rsa -C "Your Server Name" -f $LBBS_HOME_DIR/conf/ssh_host_rsa_key
 
-9) Startup  
+10) Startup  
    sudo -u bbs $LBBS_HOME_DIR/bin/bbsd
 
-10) Set up systemd  
+11) Set up systemd  
    Create your own /usr/lib/systemd/system/lbbs.service from the sample at conf/lbbs.service.default, and make any change if necessary.  
    Reload daemon config and start the service.  
 
-11) Cleanup on abnormal service termination  
+12) Cleanup on abnormal service termination  
    In case of any unexpected failure or improper operation which results in abnormal termination of lbbs process, manual cleanup of shared memory / semaphore might be required before re-launch the process. Run the following command to check first:  
    sudo -u bbs ipcs  
    There should be no item owned by bbs. Otherwise, run the following command to cleanup:  
    sudo -u bbs ipcrm -a
+