TROUBLE: MISTAKENLY CHANGED PERMISSION OF OS . how to recover
Hi have Linux Redhat 2.1 enterprise installed on BLADE server.
Today I comitted a mistake of changing permission from root user .
I issued following command
chown -R oracle:dba ..
I was in /usr02 , where my software was to be installed
instead of chown -R oracle:dba .
I changed the whole system ownership to oracle:dba
anyway how to RESTORE back the file ownerships and permission.
because it has changed permission of /etc , /dev , /var .... everything.
This server has just been finished installing OS .
if there is anyway to recover from installtion CD .
any pointers will be of immense help.