Embedded Linux S3C2440 Build and Boot an Image

Summary Tried to build and boot zImage on Embedded Linux S3C2440. Install Buildroot I tried to compile and install the latest Buildroot by downloading at https://buildroot.org/ , ‘buildroot-2018.02.9.tar.bz2’, the compiling and installation was successful, and change the /etc/profile to below, PATH=$PATH:/home/iot/buildroot-2018.02.9/output/host/usr/bin TARGET_DIR=/home/iot/buildroot-2018.02.9/output/target Note: you cannot use root to compile Buildroot. But the compiling for busybox […]

Oracle SHARED mode server confiuguration error ORA-12523

Summary Configure the Shared mode for Oracle connection, it failed and returned ORA-12523, found out it is mandatory to configure local listener. 本地监听的配置是必须的。 Configure Shared server mode ‘listener.ora’ was configured as below, LISTENER3 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = ocp)(PORT = 1523)) ) LISTENER2 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST […]

“ORA-01034: ORACLE not available” resolved

Summary Encountered problem cannot login Oracle by login name and password “system/oracle”, resolved this issue by changed the kernal parameter kernel.sem in sysctl.conf. Problem Encountered ORA-01034 and ORA-27101 as below, [tom@ocp ~]$ [tom@ocp ~]$ sqlplus /nolog SQL*Plus: Release Production on 星期四 12月 20 20:42:24 2018 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL> […]