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serhepopovych / simple-cdd-meta

Debian and it's derivatives Simple-CDD preseed configuration with profiles
MIT License
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Snapshot btrfs root subvolume after installation when installing on BTRFS #18

Open serhepopovych opened 4 years ago

serhepopovych commented 4 years ago

It might be useful to 1) snapshot it as rootfs for containers (e.g. LXC) saving space and benefiting from CoW feature of BTRFS 2) have multiple, isolated from each other, installations with different set of packages (e.g. different desktop environments) 3) have option to recovery system by booting from "original" snapshot.

To implement this we need 1) add grub menu entry to boot from "original" snapshot for recovery purposes 2) inject finish-install.d script that executed by installer after root subvolume unmounted to create snapshot.

serhepopovych commented 4 years ago

There is commit 3a86e71f75d0 ("simple-cdd-meta/debian: Disable GRUB submenu and put all entries in main") that unifies GRUB menu entry generation procedure across all Debian releases.

It is intended to help with "Snapshots ..." menu generation later when snapshots implemented.