Migrating a linux os volume to a new controller fails

[jayakumar_c]

My system had a different primary SAS controller from a secondary SAS controller. The primary controller had the linux OS volume. The drivers for the primary and secondary controller are different.

I am finding the OS is not booting (it says "kernel panic - logical volume not found" error) when I moved (disconnected and connected) the hard disks from primary controller to secondary controller.

I wanted to know the necessary steps to be done when I migrate the linux os hard disks to a new controller which has a different

[Rubberman]

Not sure, but the problem is likely the fact that the OS is assigning different device ids to the discs. There are a couple of ways to fix that, including labeling the partitions and mount using the labels, or to alias the device ids (/dev/sdx -> /dev/sda, etc) so the the system will mount them properly.