一、在bclinux Euler 21.10 安装oracle19c客户端 （为了使用sqlplus 、expdp、impdp、sqlldr等指令）
#环境和说明
系统：BigCloud Enterprise Linux For Euler 21.10 LTS
为了使用sqlplus 、expdp、impdp、sqlldr等指令。 下面是安装步骤 （此方法也适用于centos7.9）
yum install libnsl -yrpm -ivh oracle-instantclient19.20-basic-19.20.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.20-devel-19.20.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.20-jdbc-19.20.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.20-odbc-19.20.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.20-sqlplus-19.20.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.20-tools-19.20.0.0.0-1.x86_64.rpm #配置环境变量
[root@gxyd-iom-app1-6 /home/nwom/oracle]# vim /etc/profile
export PATH=$PATH:/usr/lib/oracle/19.20/client64/binsource /etc/profile#参考博客：
http://www.taodudu.cc/news/show-3306490.html?action=onClick
注意事项：无外网/离线环境下，所需的bclinux euler的rpm包。
#4GB的bclinux euler镜像ISO包，作为本地yum源，是没有libnsl的。
#缺libnsl依赖，有的操作是将原本的 xxx.oe1. 换成了 libnsl-2.28-101.el8.x86_64[root@localhost cache]# cat /etc/yum.conf
[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
best=True
skip_if_unavailable=False
#保存yum下载的包
keepcache=1###
[root@localhost oracle-instanceClient-19c]# rpm -ivh oracle-instantclient19.20-basic-19.20.0.0.0-1.x86_64.rpm
错误：依赖检测失败：libnsl.so.1()(64bit) 被 oracle-instantclient19.20-basic-19.20.0.0.0-1.x86_64 需要####安装依赖
[root@localhost oracle-instanceClient-19c]# yum install libnsl
上次元数据过期检查：0:07:18 前，执行于 2024年05月04日 星期六 18时42分56秒。
依赖关系解决。
===========================================================================================================================================================Package Architecture Version Repository Size
===========================================================================================================================================================
安装:libnsl x86_64 2.28-99.oe1.bclinux update 42 k
升级:glibc x86_64 2.28-99.oe1.bclinux update 3.2 Mglibc-common x86_64 2.28-99.oe1.bclinux update 26 Mglibc-devel x86_64 2.28-99.oe1.bclinux update 2.8 M事务概要
===========================================================================================================================================================
安装 1 软件包
升级 3 软件包总下载：32 M
确定吗？[y/N]： y
下载软件包：
(1/4): libnsl-2.28-99.oe1.bclinux.x86_64.rpm 107 kB/s | 42 kB 00:00
(2/4): glibc-2.28-99.oe1.bclinux.x86_64.rpm 3.2 MB/s | 3.2 MB 00:00
(3/4): glibc-common-2.28-99.oe1.bclinux.x86_64.rpm 6.4 MB/s | 26 MB 00:04
(4/4): glibc-devel-2.28-99.oe1.bclinux.x86_64.rpm 761 kB/s | 2.8 MB 00:03 已升级:glibc-2.28-99.oe1.bclinux.x86_64 glibc-common-2.28-99.oe1.bclinux.x86_64 glibc-devel-2.28-99.oe1.bclinux.x86_64 已安装:libnsl-2.28-99.oe1.bclinux.x86_64 完毕！###缓存下来的包
[root@localhost cache]# pwd
/var/cache
[root@localhost cache]# find /var/cache -name *.rpm
/var/cache/dnf/update-02ebc2c230a599d6/packages/glibc-devel-2.28-99.oe1.bclinux.x86_64.rpm
/var/cache/dnf/update-02ebc2c230a599d6/packages/glibc-common-2.28-99.oe1.bclinux.x86_64.rpm
/var/cache/dnf/update-02ebc2c230a599d6/packages/libnsl-2.28-99.oe1.bclinux.x86_64.rpm
/var/cache/dnf/update-02ebc2c230a599d6/packages/glibc-2.28-99.oe1.bclinux.x86_64.rpm#离线下载rpm包地址
https://mirrors.cmecloud.cn/bclinux/oe21.10/update/x86_64/Packages/
https://mirrors.cmecloud.cn/bclinux/oe21.10/update/x86_64/Packages/glibc-devel-2.28-99.oe1.bclinux.x86_64.rpm
https://mirrors.cmecloud.cn/bclinux/oe21.10/update/x86_64/Packages/glibc-common-2.28-99.oe1.bclinux.x86_64.rpm
https://mirrors.cmecloud.cn/bclinux/oe21.10/update/x86_64/Packages/glibc-2.28-99.oe1.bclinux.x86_64.rpm
https://mirrors.cmecloud.cn/bclinux/oe21.10/update/x86_64/Packages/libnsl-2.28-99.oe1.bclinux.x86_64.rpm
