How to clone a server on linux from RAID1 to new RAID1?

Question

linux

Hello! Can you please tell me how to transfer a system that is installed on a RAID1 array to a new RAID1 array?
I want to change from old HDD to SSD

Answer 1

rsync then grub-install

Answer 2

if the size is the same, then:
1. Copy the partition table via sfdisk
2. Create a new RAID1 via mdadm
3. Copy the FS from the old RAID to the new one via partclone
4. Mount the new RAID somewhere in /newraid
5. Mount /dev, / there proc, /sys
6. We make a chroot there
7. We do grub-install, as a target we specify new disks
if the size is different, then either reduce the original one through tune2fs to a minimum, then partclone, or use rsync with the -a switch, otherwise acl will not be copied and xattr