Exiting with failure status due to previous erro异常处理
Posted Liujun_Deng
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系统:CentOS 7.6
在备份ORACLE_HOME时报出以下异常:
[oracle@dbserver ~]$ tar -cvfp product.tar.gz /u01/app/oracle/
/u01/app/oracle/oradata/orcl/temp01.dbf
/u01/app/oracle/archive/
tar: Exiting with failure status due to previous errors
经查询资料,确认造成此异常最有可能是tar命令压缩的某个文件过程中,
该用户并不具备读权限,因此切换root用户进行压缩,如下:
[root@dbserver ~]# tar -cvfp product.tar.gz /u01/app/oracle/
tar: Exiting with failure status due to previous errors
说明:依然报出此异常
问题:
1、如何确定错误根源?
2、tar命令打印出"previous errors"到底是什么错误?
要找到这些信息,可以把tar命令的标准输出(stdout)进行过滤,如下:
[oracle@dbserver ~]$ tar zcvf product.tar.gz /u01/app/oracle/ >/dev/null
tar: Removing leading `/ from member names
tar: /u01/app/oracle/product/11.2.0/db_1/bin/nmb: Cannot open: Permission denied
tar: /u01/app/oracle/product/11.2.0/db_1/bin/nmhs: Cannot open: Permission denied
tar: /u01/app/oracle/product/11.2.0/db_1/bin/nmo: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors
此时可以判断,造成此异常原因如下:
1、无权限 — 切换root解决
2、去除文件名中前导的根目录“/”
说明:对于异常原因2,tar命令在压缩文件时,默认使用相对路径,如果使用绝对路径,便会报该错误.
此时可以加参数P,不要去掉文件名开头的/,使用绝对路径进行压缩,如下:
[root@dbserver ~]# tar -zcvPf product.tar.gz /u01/app/oracle >/dev/null
[root@dbserver ~]# ll
total 2617380
-rw-r--r--. 1 root root 233770311 Mar 2 14:04 alert_jbzyydb2.log20220302
-rw-------. 1 root root 2307 Nov 25 21:05 anaconda-ks.cfg
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Desktop
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Documents
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Downloads
-rw-r--r--. 1 root root 2400 Nov 25 21:11 initial-setup-ks.cfg
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Music
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Pictures
-rw-r--r-- 1 root root 2446414252 Apr 19 23:43 product.tar.gz
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Public
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Templates
drwxr-xr-x. 2 root root 6 Nov 25 21:27 Videos
注意:-zcvPf不能写出-zcvfP,P不能放到最后,因为f必须紧跟要创建的文件名称.
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