It seems I found the problem. when the machine boot, it load the module scsi_transport_spi while aic7xxx require scsi_transport_spi2. If I do
# rmmod scsi_transport_spi # modporbe aic7xxx then it woks. -- cannot load aic7xxx module https://launchpad.net/bugs/59163 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs