Hard drive crashed on my 4+ year-old laptop. Decided to try Ubuntu 12.04 desktop instead of reinstalling Vista. Installed a new 500 GB drive in the laptop, and booted using a newly created Ubuntu flash drive. Used gparted to create a single ext4 partition. Rebooted, then tried the "Install to hard drive" option that came up during the boot process. I got a btrfs message, then a checksumming message, then a series of repeating "asking for cache data failed" and "Assuming drive cache: write through" messages.
Can anyone tell me what these messages mean? How do I get past this problem?