Kublador, welcome to LQ.
I do not know answers to all your questions, but will try to answer.
To mount an ms-dos floppy, make a directory where you would
like to mount it.
Then issue this command
#mount -t msdos /dev/fd0 /floppy
To mount a floppy that is formatted for Linux (ext2) simply change
msdos above to ext2.
Updating kernel usually involves : getting the new source code for
the kernel, compiling it with the support you want, and installing it.
There is plethora of docs around the net. Just search for it.
Here is a link...
You can get the latest kernel from www.kernel.org,
network or from other sources.
If you are used to Windows, then most of Windows installables
come as setup.exe or install.exe. In RedHat linux, the rpm files
are the installables. If there is a file called abcd.rpm, then you
would issue a command #rpm -i abcd.rpm to install whatever
abcd is supposed to be.
fstab: Unless you are a programmer, fstab won't do much.
But /etc/fstab is a file under both Unix and LInux systems.
fstab stand's for File System TABle. It is where the system
administrator can tell the OS about any filesystems the machine
may have access to. It also allows default parameters to be
provided for each filesystem.
make: is all about compiling. Make builds object files from the
source files and then links the object files to create the