This is not just a problem with the Thinkpad T400. I just had the same issue with my workstation machine, which is based on a ASUS P5Q-EM LGA 775 Intel G45 motherboard, using two SATA hard drives and an IDE DVD-RW.
However on this machine I could not find a workaround changing BIOS settings, and after trying each SATA/IDE configuration option eventually gave up. This is a regression... earlier versions of Ubuntu installed on this hardware with no problem. -- AMD64 alternate install fails to find CDROM on Thinkpad T400 in AHCI mode, only "Compatibility" mode works https://bugs.launchpad.net/bugs/548537 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