difference between yum and up2date

[Ankush Grover]

hey friends,

I have some questions regarding updating of the Fedora Core or any
other Red hat Product.

a) What is the difference between yum and up2date? and which one is
the best tool for updating the system.

b) If i do "yum update" .Does the yum installs the packages or it just
download the packages and one has to install the packages/rpms
manually?
Where does the yum stores the downloaded rpms/packages?

c) If I use the up2date for updating my system it download the rpms
under /var/spool/up2date directory.One has to manually install the
rpms downloaded by up2date if not specified while downloading "to
install the packages" and there are some .hdr files also.One should
delete these .hdr /rpms if the system is updated to the latest updates
available.

d) When we click on the updated rpms downloaded in the /var/spool/up2date folder
sometimes they ask for fedora cd I know it is due to dependency
problem.Now suppose there is no cd-rom attached to the system.But
there is a cdrom available through nfs .One should do this or not

mount -t nfs machine_name:/mnt/cdrom /mnt/cdrom 

Means mounting the remote cdrom directory onto the local directory.If
still the system asks for cd while updating the system then which is
the best way to resolve that conflict.


Thanks & Regards

Ankush Grover