Oracle Database Discussions

I am trying to install Oracle 11G in Solaris. Whenever I am trying to run the installer ,I gets below error messages.
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# cd /export/home/oracle
# ls -ltr
total 2098204
drwxr-xr-x 3 oracle oinstall 512 Mar 29 21:23 product
drwxr-xr-x 2 oracle oinstall 512 Mar 29 23:03 Documents
drwxr-xr-x 2 oracle oinstall 512 Mar 29 23:03 Desktop
-rw------T 1 root root 1073741824 Mar 29 23:09 orcl_swap
lrwxrwxrwx 1 oracle oinstall 32 Mar 30 19:34 link to installation -> /e xport/home/oracle/installation
drwxr-xr-x 4 root root 512 Mar 30 20:30 installation
drwxr-xr-x 4 oracle oinstall 512 Mar 30 23:30 tmp
# cd installation
# ls -ltr
total 4
dr-xr-xr-x 4 root root 512 Mar 30 20:30 linux.zseries64_11gR2_data base_2of2
dr-xr-xr-x 3 root root 512 Mar 30 20:30 solaris.x64_11gR2_database _1of2_1
# cd solaris.x64_11gR2_database_1of2_1
# ls -ltr
total 2
dr-xr-xr-x 8 root root 512 Mar 30 21:09 database
# cd database
# ls -ltr
total 38
dr-xr-xr-x 12 root root 512 Mar 30 20:34 doc
dr-xr-xr-x 4 root root 512 Mar 30 20:34 install
dr-xr-xr-x 2 root root 512 Mar 30 20:34 response
dr-xr-xr-x 2 root root 512 Mar 30 20:34 rpm
dr-xr-xr-x 2 root root 512 Mar 30 20:34 sshsetup
dr-xr-xr-x 14 root root 1024 Mar 30 21:09 stage
-rwxrwxrwx 1 root root 6513 Mar 30 21:59 runInstaller
-r--r--r-- 1 root root 5400 Mar 30 21:59 welcome.html
# ./runInstaller
./runInstaller: /export/home/oracle/installation/solaris.x64_11gR2_database_1of2_1/database/install/.oui: cannot execute


It will bre great if anyone can help me with some ideas and concepts here.