I have used dd command to clone disk A to disk B. However, in some cases (not always), after a successful clone, fdisk on disk B gives me:
GPT PMBR size mismatch (937703087 != 1000215215) will be corrected by w(rite).
I know the question was asked here before: GPT PMBR size mismatch after dd clone
My question is why this error occurs sometimes but sometimes not. My own experience is that when the disk A and B have different physical sector sizes, this error happens. But it could be a mis-impression. Or maybe some disks do not have a secondary backup GPT and this error only happens with those disks with a backup GPT? Can someone shed light on this please?
As always, thanks!