My year old System76 Ratel Performance is running Ubuntu v12.10 and I wish to upgrade to Saucy Salamander (v13.10). I'm an Ubuntu sys-admin newbie and this is my first shot at an Upgrade, so there is FUD. I'd like to keep this simple and low-risk (KISS).
I have a good back up of ~/Documents/allMyStuff on a flash drive. Since this is a 3 version jump, I was told I should load from a CD instead of from Software Updater. My book, “Ubuntu Unleashed, 2014 Edition”, came with a CD containing Ubuntu v13.10. If I must upgrade Ubuntu from CD, I'd like to upgrade from that.
1) Is it indeed best to re-load Ubuntu from CD because this is a 3 version upgrade?
2) If the answer to #1 is “yes”, how do I update Ubuntu from my CD? I keep reading about “the iso file”, but I don't see an *.iso file on the CD. I see dirs named, “isolinux”, “install”, et al. There is also a file named “wubi.exe”. When I put the CD in the drive a message box comes up and says:
3) “Ubuntu Unleashed” seems to say this install will re-write the entire hard disk and that it will require me to add myself as a new user at install. This sounds bad! Is there a way to upgrade Ubuntu from CD without blowing away my own user account and the privileges I set up via chmod? Or, will the install program allow me to re-load the OS while sustaining me as the user? I can re-load my data from my back up but don't want to lose all my permissions.Software Packages Volume Detected
A volume with software packages has been detected. Would you like to open it with the package manager?