I am seeing the same problem on Lucid Beta 2 (and daily updates as of 20-Apr).
In my case, this issue appears to be the cause of a significant boot delay. The boot delay shows up in two phases: a 60 second delay between power on and login prompt (kdm) and a second delay of about 30 seconds between login and kde being available. Neither of these problems were present in 9.04 - they were only seen after upgrading. The discussion at https://bugs.launchpad.net/ubuntu/+source/hdparm/+bug/515023 seems to be relevant to this bug. The solution recommended there (https://bugs.launchpad.net/oem-priority/+bug/548513/comments/20) eliminated the first boot delay, but it did not eliminate the log messages. example log messages: [17507.445380] sd 4:0:0:3: [sde] Unit Not Ready [17507.445386] sd 4:0:0:3: [sde] Sense Key : Illegal Request [current] [17507.445395] sd 4:0:0:3: [sde] Add. Sense: Logical unit not supported Following a recommendation in the forums, I added "nohdparm" to the grub kernel line at boot time. This eliminated both of the boot delays and the log messages. However, I don't know what side effects "nohdparm" may have on the system. -- [Karmic] USB Card Reader Malfunction - clutter in DMESG https://bugs.launchpad.net/bugs/452519 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs