I currently am dual-booting with Win7 and Ubuntu. If I download Win8 CP, and install it over the Ubuntu partition, will it still boot? Or will I need to reinstall Win7?
Are you dual booting on a single drive or across two drives? Here I unplugged the host drive with 7 and saw a clean install of the W8 CPreview go right onto the second drive used for testing.
Once the 7 host drive was replugged I used EasyBCD to add a new 7 entry into the W8 BCD store with instant results. When booting into 7 following resetting the 7 drive as the default boot drive again and adding the new W8 entry in W8 failed to load! the winloader.exe was immediately seen until trying out the new repair tools on the 8 dvd!
The automatic repair saw results and can boot either 7 or 8 CP from either of the two drives. With your situation if on one drive you can opt to nuke ubuntu to see 8 go the second partition made into an NTFS primary or if you are using a second drive for ubuntu shrink and split that drive to allow the 8 instal as long as you can use the ubuntu root partition as the mount point for Grub since the 8 mbr entries will replace any for the distro.
Creative Xtreme Gamer - 2nd case Realtek Onboard audio
Monitor(s) Displays
Acer 19" dual monitor setup - 2nd case HP 20" lcd
Screen Resolution
1440x900 same on both builds
Hard Drives
1st build
WD Caviar Black Edition Sata II 1tb two OS drives
WD RE "Heavy Duty Sata II 2tb two Storage/Backup
2nd build
WD Blue Sata II 500gb
WD Black Edition Sata III 1tb
WD Green Power Sata II 1tb in external usb enclosure
PSU
Corsair TX750H 750w -Corsair 500w
Case
Antec 900-2 -NXZT Vulcan Mini tower/carrying handle
Cooling
120mm front pair, 120 rear 200cm top - 120mm Front intake 200mm side cover
Have fun trying that! It WON'T happen! That was already looked into here for VM Player 4.0 and the Oracle VirtualBox and the results were simply a NO GO!
The only way to run the CP is a direct install to a drive since MS has beefed up the security as well. You can no longer install without first entering a product key which is then verfied online by the installer before the installation will proceed. Unlike the 7 betas and RCs a few years ago MS security is a factor in not allowing a VM to work.
Creative Xtreme Gamer - 2nd case Realtek Onboard audio
Monitor(s) Displays
Acer 19" dual monitor setup - 2nd case HP 20" lcd
Screen Resolution
1440x900 same on both builds
Hard Drives
1st build
WD Caviar Black Edition Sata II 1tb two OS drives
WD RE "Heavy Duty Sata II 2tb two Storage/Backup
2nd build
WD Blue Sata II 500gb
WD Black Edition Sata III 1tb
WD Green Power Sata II 1tb in external usb enclosure
PSU
Corsair TX750H 750w -Corsair 500w
Case
Antec 900-2 -NXZT Vulcan Mini tower/carrying handle
Cooling
120mm front pair, 120 rear 200cm top - 120mm Front intake 200mm side cover