Launchpad Entry: https://launchpad.net/distros/ubuntu/+spec/libata-for-all-ata-disks
Packages affected: kernel, udev
DRAFT - BRAINDUMP - NOT COMPLETE - WORK IN PROGRESS - I am still thinking about pro/con situations.
There is work on the go by Alan Cox in the kernel to make libata handle PATA disks as well as SATA disks. This would allow for a simpler install image due to all disks becoming sdXY.
One interface for all things ATA, allow drivers/ide to go away. One namespace for disks whether SCSI or ATA.
Data preservation and migration