Clonezilla

The Free and Open Source Software for Disk Imaging and Cloning
Step-by-step docs

  1. When restoring MDRAID using Clonezilla live with Linux kernel >=6.19, the restored GNU/Linux won't start. Ref: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1130775 Use Clonezilla live based on Ubuntu Questing release. It comes with Linux kernel < 6.19.