Comment 21 for bug 499237

This problem continues to exists also with the latest 64bit 2.6.35-27. I am booting ubuntu 10.10 from an SD card which the kernel also incorrectly identifies as a rotational device. After resetting it to 0 and just like Orson not getting the desired result, I tried to cheat my way through by running ureadahead in parallel to the boot process. Normally ureadahead.conf will block mountall (and hence pretty much everything else), but if you modify it like that:

exec /sbin/ureadahead --daemon &

it will run ureadahead in parallel (or at least bootchart says so) - but the result is worse than without ureadahead at all.