Neil Bothwick wrote: > On Mon, 23 Nov 2020 13:51:26 -0600, Dale wrote: > >> If UUID is something you don't want to spend time learning right now, >> try using labels at least. Just make sure YOU use unique labels for >> each one. Hint. home-old, home-new works pretty well at times. At >> least you know it is home and which is old and which is new. Notes may >> help too. ;-) > I agree on labels, they are far more readable. But I'm starting to think > that duplicating partitions like this is asking for trouble. I think it > would be better to create the partitions and filesystems you want on the > new disk, then mount both and copy everything over with rsync. That was > you won't get any conflicting UUIDs and you can set filesystem or > partition labels as you see fit. > >
Way back when I kept outgrowing the disk I had the OS installed on, that is what I did. I booted from a CD/DVD. I created the new partitions and such. I then created /mnt/old and /mnt/new. I mounted the partitions under the correct one, creating directories for boot, usr, var etc as needed on the new disk. Once all was mounted, I used cp -av /mnt/old* /mnt/new/ to copy things over. Today, I'd likely use rsync tho. If I had to interrupt the process, add the -u option. That worked then but not sure about now. I'd think UUIDs are always unique. I guess there is a 1 in a billion chance of a duplicate but doubtful it would be ran into by many. If nothing else, labels work as long as unique names are used. Using sda, sdb, sdc etc tho is a problem waiting for something bad to happen. Heck, nowadays one can even change the order drives are seen in the BIOS. I'm not sure about EFI stuff. I can make what is sda look like sdb without ever taking the side off my puter case or unhooking anything. Using labels or UUIDs eliminate that problem. In a way, things are more complicated. Thing is, if one uses UUIDs, and only them, it's really pretty simple. Copy and paste helps tho. One wouldn't want a typo. lol Of course, if one is careful, labels work just as well. Dale :-) :-)
