I have just installed oracle,and oracle assistants have create the database default for me,and popped up a window to prompt me to run root.sh in $ORA_HOME/bin to complete the process.And I did as it prompted.But the message after running is :
root@1[Db_2]# ./root.sh
Running Oracle10 root.sh script...
\nThe following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /oracle/app/oracle/product/10.1.0/Db_2

Enter the full pathname of the local bin directory: [/usr/local/bin]: /usr/local/bin
The file "dbhome" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying dbhome to /usr/local/bin ...
The file "oraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying oraenv to /usr/local/bin ...
The file "coraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying coraenv to /usr/local/bin ...

Adding entry to /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
clscfg: EXISTING configuration version 2 detected.
clscfg: version 2 is 10G Release 1.
Successfully accumulated necessary OCR keys.
clscfg: Arguments check out successfully.

NO KEYS WERE WRITTEN. Supply -force parameter to override.
-force is destructive and will destroy any previous cluster
configuration.
Oracle Cluster Registry for cluster has already been initialized
Starting Oracle CSS service under init(1M)
Expecting the CRS daemons to be up within 120 seconds.
Giving up: Oracle CSS stack appears NOT to be running

How can I solve this problem???? help,wait on-line

This isn't the answer you want to hear, but I don't think you'll find much help with oracle on this forum. I haven't used oracle before anyways, and since it's not part of debian, most of the rest of us probably haven't either.

You might want to try an Oracle support forum, or some kind of forum specific to oracle, or oracle on linux.

Good luck!

seems u wrote the path u needed just press enter without writing anything. Try in that way