A quick word to the wise. I attempted an upgrade from Ubuntu 9.04 to 9.10 on my workstation at work. This computer uses an Nvida NForce 4 chipset. OK, so what is the big deal!? Well… After it completed its upgrade I rebooted the computer, only to watch in horror as grub would send me flying into the depths of BusyBox. Why? Well the new kernel used in 9.10 – linux-image-2.6.31-14 includes support for Nvida Raid often dubbed “Fake RAID”.
This new storage driver is loaded even if you have RAID disabled in the BIOS! So upgrading to 9.10 destroyed my workstation and all the data on it!
However this was not all bad. I took advantage of the new Nvida RAID support, rebooted went into my BIOS re-enabled it, booted off of the Ubuntu 9.10 Live CD and simply installed from scratch. After my new Ubuntu 9.10 install loaded in its new home on the Nvida RAID array, I recovered my data from a USB External Drive, and reinstalled my programs via a bash shell script.
So please take a hint of advice from one Ubuntu novice to another. If you have an Nvida chipset which supports RAID, please don’t upgrade. If you want the latest and greatest features do yourself the honor of backing up your data, enable RAID, and install a nice new fresh copy of Ubuntu.