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@@ -0,0 +1,75 @@
++++
+
+title = "安装数据库时提示无效目录怎么办" 
+
+date = "2023-04-30" 
+
+tags = ["openGauss安装"] 
+
+archives = "2023-04" 
+
+author = "张翠娉" 
+
+summary = "安装数据库时提示无效目录怎么办"
+
+img = "/zh/post/zhangcuiping/title/img.png" 
+
+times = "14:20"
+
++++
+
+# 安装数据库时提示无效目录怎么办？
+
+**背景介绍**：
+
+使用PTK安装MogDB数据库时，提示The core dump path from /proc/sys/kernel/core_pattern is an invalid directory:|/usr/lib/s。
+
+**报错内容及原因**：
+
+因为目录的权限问题，有些目录不支持数据库安装就会报无效目录。
+
+**说明**：数据库目录设置为/dev、/tmp、/run等，都会提示无效目录。
+
+```bash
+[root@kylinos mogdb500]# more ptk-install-172.23.2.23.err.log
+[exited status: 1] Command: "bash -c \". ~/.ptk_mogdb_env && /run/mogdb500/app/bin/gs_initdb --nodename dn_6001_6002 --no-locale --encoding=UTF-8 -D /
+run/mogdb500/data --pwpasswd *** ": The files belonging to this database system will be owned by user "omm5".
+This user must also own the server process.
+
+The database cluster will be initialized with locale "C".
+The default text search configuration will be set to "english".
+
+fixing permissions on existing directory /run/mogdb500/data ... ok
+creating subdirectories ... in ordinary occasionok
+creating configuration files ... ok
+selecting default max_connections ... 100
+selecting default shared_buffers ... 1024MB
+Begin init undo subsystem meta.
+[INIT UNDO] Init undo subsystem meta successfully.
+creating template1 database in /run/mogdb500/data/base/1 ... The core dump path from /proc/sys/kernel/core_pattern is an invalid directory:|/usr/lib/s
+ystemd/
+2023-07-17 15:31:18.254 [unknown] [unknown] localhost 22695720371200 0[0:0#0]  [BACKEND] WARNING:  macAddr is 21076/10164381, sysidentifier is 1381236
+891/412969417, randomNum is 2272029129
+2023-07-17 15:31:18.265 [unknown] [unknown] localhost 22695720371200 0[0:0#0]  [DBL_WRT] PANIC:  Could not create file "global/pg_dw_meta": Invalid ar
+gument
+2023-07-17 15:31:18.265 [unknown] [unknown] localhost 22695720371200 0[0:0#0]  [DBL_WRT] BACKTRACELOG:  tid[425110]'s backtrace:
+        /run/mogdb500/app/bin/mogdb(+0xe39396) [0x55e554410396]
+        /run/mogdb500/app/bin/mogdb(_Z9errfinishiz+0x441) [0x55e554408ab1]
+        /run/mogdb500/app/bin/mogdb(_Z14dw_create_filePKc+0xf6) [0x55e554e1afe6]
+        /run/mogdb500/app/bin/mogdb(_Z21dw_generate_meta_fileP21st_dw_batch_meta_file+0x5e) [0x55e554e1b05e]
+        /run/mogdb500/app/bin/mogdb(_Z12dw_bootstrapv+0x85) [0x55e554e1b4d5]
+        /run/mogdb500/app/bin/mogdb(_Z13BootStrapXLOGv+0xb68) [0x55e554e4a2a8]
+        /run/mogdb500/app/bin/mogdb(_Z20BootStrapProcessMainiPPc+0x60f) [0x55e5544fde5f]
+        /run/mogdb500/app/bin/mogdb(main+0x7c2) [0x55e553ebc752]
+        /lib64/libc.so.6(__libc_start_main+0xe7) [0x14a4425e9b27]
+        /run/mogdb500/app/bin/mogdb(_start+0x2a) [0x55e553f2d61a]
+        Use addr2line to get pretty function name and line
+
+could not write to child process: Broken pipe
+gs_initdb: removing contents of data directory "/run/mogdb500/data"
+```
+
+**解决办法**：
+
+将配置文件的base_dir设置为/opt即可成功安装。
+