[CentOS] [Newbie] Reclaiming /boot space

>If the necessary files are in trash, how do I get copy them back
>to /boot properly e.g. put them in the crorrect place and how do
>I know which ones are necessary?


There are several files in /boot all containing a kernel version in the
name, like:

config-2.6.18-194.17.4.el5
initrd-2.6.18-194.17.4.el5.centos.plus.img
symvers-2.6.18-194.17.4.el5.centos.plus.gz
vmlinuz-2.6.18-194.17.4.el5

etc.

There is also an important folder named 'grub', and one additional file
named 'message'