You are seeing the dmesg from a working kernel 2.6.20-10 i have issues with the 2.6.20-12 kernel.
here is the interesting part 65.266702] ata1: failed to recover some devices, retrying in 5 secs [ 77.256657] ata1: port is slow to respond, please be patient (Status 0xd0) [ 100.234949] ata1: port failed to respond (30 secs, Status 0xd0) [ 100.234993] ata1: soft resetting port [ 100.570654] ata1.00: configured for UDMA/33 [ 100.734387] ata1.01: configured for UDMA/33 -- Extremely Slow boot up PATA disk detected as sda https://launchpad.net/bugs/94981 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
