I have specific Linux installed on SSD drive. What I want to do is to copy all ext4 partition files to other drive (also ext4) and make it bootable. Copy should be as similar as possible differentiating only in partition size and physical location of the files.
I understand that I need to make /boot/ folder the same, but what about GRUB? How can I make the target drive bootable?
Copy of whole partition/disk is not applicable here - I need instruction how to make bootable a copy of ext4 filesystem.