我正在尝试配置 Oracle XE，但面临以下问题：
root@venky-Lenovo-G510:~# /etc/init.d/oracle-xe-18c 配置
/bin/df: 无法识别的选项 '--direct' 尝试使用 '/bin/df --help' 获取更多信息。指定要用于数据库帐户的密码。Oracle 建议输入的密码长度至少为 8 个字符，至少包含 1 个大写字符，1 个小写字符
大小写字符和 1 位数字 [0-9]。请注意，相同的密码将是
用于 SYS、SYSTEM 和 PDBADMIN 帐户：确认密码：配置 Oracle 侦听器。侦听器配置成功。配置 Oracle 数据库 XE。****[致命] [DBT-50000] 无法检查可用内存。****
数据库配置失败。检查“/opt/oracle/cfgtoollogs/dbca”下的日志。
root@venky-Lenovo-G510:~#
这有什么关系/bin/df: unrecognized option '--direct'吗？或者是其他东西 ？
谢谢
感谢 alexsander-perusso 上面的回答，对于 Ubuntu 16.04/etc/init.d/oracle-xe-18c上的 oracle-xe-18c 的正确答案是通过添加进行编辑
-J-Doracle.assistants.dbca.validate.ConfigurationParams=false
echo "Configuring Oracle Database $ORACLE_SID."就行后的正下方$PDB_NAME。
这是编辑后该行的样子：
$SU -s /bin/bash $ORACLE_OWNER -c "(echo '$ORACLE_PASSWORD'; echo '$ORACLE_PASSWORD'; echo '$ORACLE_PASSWORD') | $DBCA -silent -createDatabase -gdbName $ORACLE_SID -templateName $TEMPLATE_NAME -characterSet $CHARSET -createAsContainerDatabase $CREATE_AS_CDB -numberOfPDBs $NUMBER_OF_PDBS -pdbName $PDB_NAME -J-Doracle.assistants.dbca.validate.ConfigurationParams=false -sid $ORACLE_SID -emConfiguration DBEXPRESS -emExpressPort $EM_EXPRESS_PORT -J-Doracle.assistants.dbca.validate.DBCredentials=false -sampleSchema true $SQLSCRIPT_CONSTRUCT $DBFILE_CONSTRUCT $MEMORY_CONSTRUCT"
参考：http ://www.eygle.com/archives/2018/11/oracle_18c_19c_dbt_50000.html
我按照此处的说明进行操作：https : //tec600.wordpress.com/2017/06/29/oracle-installation-on-ubuntu-16-04/ 对 18c XE 进行了更改
上述更改后的结果：
$sudo /etc/init.d/oracle-xe-18c configure
/bin/df: unrecognized option '--direct'
Try '/bin/df --help' for more information.
Specify a password to be used for database accounts. Oracle recommends that the password entered should be at least 8 characters in length, contain at least 1 uppercase character, 1 lower case character and 1 digit [0-9]. Note that the same password will be used for SYS, SYSTEM and PDBADMIN accounts:
Confirm the password:
Configuring Oracle Listener.
Listener configuration succeeded.
Configuring Oracle Database XE.
Enter SYS user password:
*******
Enter SYSTEM user password:
*******
Enter PDBADMIN User Password:
*********
Prepare for db operation
7% complete
Copying database files
29% complete
Creating and starting Oracle instance
30% complete
31% complete
34% complete
38% complete
41% complete
43% complete
Completing Database Creation
47% complete
50% complete
Creating Pluggable Databases
54% complete
71% complete
Executing Post Configuration Actions
93% complete
Running Custom Scripts
100% complete
Database creation complete. For details check the logfiles at:
/opt/oracle/cfgtoollogs/dbca/XE.
Database Information:
Global Database Name:XE
System Identifier(SID):XE
Look at the log file "/opt/oracle/cfgtoollogs/dbca/XE/XE.log" for further details.
Connect to Oracle Database using one of the connect strings:
Pluggable database: SERVERNAME:1539/XEPDB1
Multitenant container database: SERVERNAME:1539
Use https://localhost:5500/em to access Oracle Enterprise Manager for Oracle Database XE
基本上你需要编辑脚本文件：
sudo nano /etc/init.d/oracle-xe-18c
并添加 Java 类：
-JDoracle.assistants.dbca.validade.ConfigurationParams=false