SystemRescueCD (with FSArchiver) on LiveUSB. Optionally, FSArchiver in all installed Linux-es.
Backup
- Boot from LiveUSB
- Backup a 20 G partition(s) with FSArrchiver onto external USB disk - about 20 minutes
- Done
Restore
- Boot from LiveUSB
- Restore a 20 G Linux partition(s) with FSArchiver from an external USB disk - about 5 minutes
- Done
FSArchiver from any existing Linux may be used instead of those from LiveUSB.
No additional software is needed. No cloud storage is needed. No Internet connection is needed. No additional configurations are needed. Nothing is needed, except LiveUSB with SystemRescueCD and external disk with backup.
Internal disk(s) or the whole computer may be completely destroyed. It doesn't matter. The whole system may be restored onto another disk, another computer, to smaller or bigger partitions, formatted or not formatted, with the same or different file system, completely or partially (selected folders).
Just pure backup-restore.