Comment 5 for bug 242638

Same issues on a T60p on 2.6.24-19-generic.

Additional info from my working with this. The thinkpad_acpi module does not load bay support as the generic ACPI bay module is suppose to handle this now. However looking at dmesg you see this.

$ dmesg | grep bay
[ 70.229156] ACPI: \_SB_.PCI0.IDE0.PRIM.MSTR: found ejectable bay
[ 70.229186] ACPI: Error installing bay notify handler

so under /proc/acpi there is no bay reference nor is there anything under /proc/acpi/ibm/

According to this thread on ibm-acpi-dev list
http://www.nabble.com/Re:--ibm-acpi-devel---proc-acpi-ibm-bay-gone-with-ThinkPad-ACPI-Extras-v0.19-20080107-2.6.24-p15221781.html

booting without acpi support in libata may solve the problem though I've never been able to get that to work.