Hello, I just installed SL6 from the Live CD and I'm having two post
install issues.

1)  I am unable to complete my initial update. Whenever I run 'sudo
yum update' the updates download fine but will not install. I recieve
this error:

-------------------------------------------------------
Install       2 Package(s)
Upgrade     123 Package(s)

Total size: 172 M
Is this ok [y/N]: y
Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID
0608b895: NOKEY


Public key for openvpn-2.2.1-1.el6.x86_64.rpm is not installed
-----------------------------------------------------------

My question is, where do I get this GPG key, and others assuming they come up?

2) I dual boot Linux & Windows 7. SL6 is on my first 1.5 TB HDD and
Windows 7 is on my 2nd 500GiB HDD. The grub boot menu does not show up
on startup, instead it goes straight to the SL splash screen. How do I
change this? I edited my /boot/grub/grub.conf and these are my
changes:

--------------------------------------------------------------
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/mapper/vg_megatron-lv_root
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=0
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Scientific Linux (2.6.32-131.6.1.el6.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.32-131.6.1.el6.x86_64 ro
root=/dev/mapper/vg_megatron-lv_root rd_LVM_LV=vg_megatron/lv_root
rd_LVM_LV=vg_megatron/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM
LANG=en_US.UTF-8 $
        initrd /initramfs-2.6.32-131.6.1.el6.x86_64.img
title Windows 7 Pro
        map (hd0) (hd1)
        map (hd1) (hd0)
        rootnoverify (hd1,0)
        chainloader +1
---------------------------------------------------------------------

What am I doing wrong here?