How to copy a Linux File System and maintain a fixed link

How to copy a Linux File System and maintain a fixed link-general Linux technology-Linux programming and kernel information. The following is a detailed description. As my Linux backup system, I have been switching and upgrading/replacing some general serial bus hard disks in my house recently. A 320 billion-byte Linux box is installed in/mnt/backup mode, and there is no space at first. (If you really want to know, it's Lenovo's notebook T43p. Run it with ubento.) This is after I removed 50 billion bytes last night.

I want to replace it with a new 750 billion-byte hard disk and move all the data to the new disk. however, because most of the data includes remote file system snapshots taken by rsnapshot, a large number of fixed links are generated. this step must be very accurate. otherwise, the data cannot be attached to the 750 billion-byte hard disk!

From my past experience in Unix operating systems, I remember that I had done it once. the trick is not to use common suspicious elements: cp, tar, rsync, or mv. instead, it uses dump (unfortunately) or works with find and cpio.

Then you wait for a long time and wait for these things to roll over. At this time, you really hope that you are using a hard disk with an external SATA interface attachment, instead of a general-purpose Serial Bus 2.0 attachment.

The problem is that cpio cannot maintain directory time labels, so I need to think back to how I used to pair dump and restore.

The next time I want to do this, I will never spend so much time designing a solution.

So, is there another way? Or, do you know why cpio cannot properly maintain the time tag of the directory?