swap: The swap partition should be at least twice the size of RAM on the system.
/boot: The /boot partition should be large enough to accomodate a few system kernels and initrd images. Your OS vendor probably knows best what size this should be.
/: The remainder of the disk(s) should be devoted to /. This is where all system and user data will go.
Multiple Partitions
but on our new machine (CentoOS 6.0 which we will upgrade to 6.2) I don’t see any “swap” as such if I log in as root
cd /
I see this: (fyi I’m a unix OS newbie=I don’t know what I’m looking for, or how to look for it.)
bin cgroup etc lib lost+found mnt proc sbin srv tmp var
boot dev home lib64 media opt root selinux sys usr
i.e it looks like we are up and running with a single partition not even a separate partition for boot or swap.
Do we need to change anything? Should be make a separate Swap partition?