Happens also on my Dell Inspiron 9400. Running Kubuntu 6.06 with no problem on the shutdown.
Tried fully updated kubuntu edgy => and the strange noise is there Tried kubuntu feisty => and the strange noise is there This was classified as a kernal bug, but edgy and feisty run different kernels. Looks to me as a teardown problem. ** Also affects: linux-source-2.6.19 (Ubuntu) Importance: Undecided Status: Unconfirmed -- bad hard disk noise on shutdown https://launchpad.net/bugs/67810 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs