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Old 07-27-2012, 08:18 AM   #1
cdhar
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chown: changing ownership of dir: Operation not permitted


Hi,

I have created the following folder under home/cdhar/
mkdir -p /u01/app/oracle/product/11.2.0/db_1

Now I need to change owner of the folder, but when I give the following command

[root@hdk01ytt cdhar]# chown -R gbuora:gbuinst u01
chown: changing ownership of `u01/app/oracle/product/11.2.0/db_1': Operation not permitted

I checked with cat /etc/sysconfig/selinux and SELINUX=disabled.

what could be the issue? Please suggest

thanks,
cdhar
 
Old 07-27-2012, 10:54 AM   #2
Sydney
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Is the file open? I think this is a running DB.

Quote:
lsof | grep db_1
Also doing a long list may provide some extra information for this thread.

Quote:
ls -l u01/app/oracle/product/11.2.0/db_1
 
Old 07-27-2012, 11:01 AM   #3
netnix99
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The reason that your change is not permitted is that you are trying to give gbuora:gbuinst access to /home/cdhar/u01, but becuase of the location (/home/cdhar) gbuora:gbuinst does not have permission to the path to get there. If you look at the heirarchy of the permissions:

drwxr-xr-x. 5 root root 4096 Dec 1 2011 home (Only root can create the user's home directory in /home)
drwx------. 30 cdhar cdhar 4096 Dec 1 2011 cdhar (Only the USER cdhar has ANY access to the home directory /home/cdhar)

No one else but the user (and root) can even SEE what is in that folder, so access cannot be given. You would have to change the permissions starting at /home/cdhar in order to grant someone else access.

The permissions would have to look like this:
drwx---r-x. 30 cdhar cdhar 4096 Dec 1 2011 cdhar (This would allow ANYONE access to read and execute anything in your home directory and below

Keep in mind, this is giving other user's access to your HOME DIRECTORY.... not exactly a safe thing to do...
 
Old 07-27-2012, 06:31 PM   #4
sharadchhetri
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Quote:
Originally Posted by netnix99 View Post
The reason that your change is not permitted is that you are trying to give gbuora:gbuinst access to /home/cdhar/u01, but becuase of the location (/home/cdhar) gbuora:gbuinst does not have permission to the path to get there. If you look at the heirarchy of the permissions:

drwxr-xr-x. 5 root root 4096 Dec 1 2011 home (Only root can create the user's home directory in /home)
drwx------. 30 cdhar cdhar 4096 Dec 1 2011 cdhar (Only the USER cdhar has ANY access to the home directory /home/cdhar)

No one else but the user (and root) can even SEE what is in that folder, so access cannot be given. You would have to change the permissions starting at /home/cdhar in order to grant someone else access.

The permissions would have to look like this:
drwx---r-x. 30 cdhar cdhar 4096 Dec 1 2011 cdhar (This would allow ANYONE access to read and execute anything in your home directory and below

Keep in mind, this is giving other user's access to your HOME DIRECTORY.... not exactly a safe thing to do...

Can you give these 3 reply.

(1) lsattr /home/username
(2) df -Th
(3) ls -ld /home/cdhar/u01
(3)
 
Old 07-29-2012, 06:28 PM   #5
chrism01
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This
Code:
mkdir -p /u01/app/oracle/product/11.2.0/db_1
creates the dir path starting at the system root '/', NOT from /home/cdhar ...
 
Old 07-29-2012, 07:37 PM   #6
John VV
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hi chrism01

i was just about to post that error

cdhar

as i was reading the thread
the command you gave DID NOT make a folder IN your home folder
the "mkdir" command made this
/u01/app/oracle/product/11.2.0/db_1
( think if it like on Windows )
C:/u01/app/oracle/product/11.2.0/db_1
and you ran the command FROM your NORMAL user home folder
home/cdhar/
( think if it like on Windows )
C:/home/cdhar/

so when you RAN THIS command IN your home folder
Code:
chown -R gbuora:gbuinst u01
there IS no file ,called u01 ,IN your home folder TO have the command ran on
hence the errors

PS. also DO NOT disable SELinux!!!!
( would you turn OFF the AV software,Firewall, and UserAccessAuthentacation on Windows??? - NO !!! )

for testing and FINDING and FIXING error set it to PERMISSIVE
THEN after you have fixed SE errors
set it to ENFORCING

Last edited by John VV; 07-29-2012 at 07:40 PM.
 
Old 07-30-2012, 09:23 AM   #7
netnix99
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using mkdir -p /path/to/create as a user should have failed anyway due to lack of permissions..... unless cdhar gave his user root permissions....

I missed the -p earlier....
 
Old 07-31-2012, 12:00 AM   #8
chrism01
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Looks like he's in as root, according to post #1
Code:
[root@hdk01ytt cdhar]#
 
  


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