03-11-2020
Quote:
Originally Posted by
stomp
Encryption makes the backup task more difficult.
Unfortunately I need it, I can't avoid it.
Quote:
Originally Posted by
stomp
Since you're a beginner, a CloneZilla can be a fallback solution until you're famillar enough with your linux os. With CloneZilla you can save and restore the os partition without knowing very much about linux.
Okay Clonezilla is not an option for me. Simply because I don't have that much of space to spare. It seems I am not getting the answer that I want because I am not asking the right questions.
So let me apologize for that, and let me ask if the following workflow is possible on Linux.
- I have a single 1 TB SATA hard disk.
- I will be using an encrypted LVM with ext4 formatting.
- Now lets say before an update or a dist-upgrade I take a snapshot of the root partition and store that snapshot in the root partition itself.
- The upgrade or update fails or is causing problems, and the system is no longer bootable to my desktop.
- I boot into a live CD.
- Mount my encrypted partitions, and /proc, /sys and /dev from the live CD.
- Chroot into my system.
- Find the saved snapshot.
- Revert it.
- Exit from Live CD environment and boot back to the reverted system.
Main Challenges:
- Will the backup process work ?
- Will the Live CD of my OS contain CLI tools to decrypt encrypted partitions ?
As you can see, I cannot forego full-disk encryption nor do I have that much space or time for a full cold boot snapshot of a partition.
So is the above workflow possible ?
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