installing Linux (centos) on HP server
 

Hello,
i have a server with four hard disk and RAID5 config , i want to install Centos5.5 on this server . while installing it asks me following :
1-use free space
2-remove all linux partition & create default
3-remove all patition and create default
..
i just wont to know which option i should choose.

It depends upon what you have on the server now. Do you have another system and want to add CentOS? Do you want CentOS as the only operating system?

I think you are fresher in Linux. I suggest you to go with CentOS installation guide first.

Link : http://www.centos.org/docs/5/