How to create software raid on existing /?
Is there any way to create a software raid 1 on the / partition without losing data?
I've installed Ubuntu on a hard drive. I added a 2nd hard drive and now want to create a software raid 1 mirror for the / partition. How do I do this? If I used the mdadm command, it says that the device is busy or in use.
I have tried using the rescue boots and creating the raid using fdisk and mdadm and editing grub to reflect the new /dev/md0, but when I boot I get some kernel panicks.
Is there any way to create a software raid 1 on the / partition?