DotfilesGentooRoot VS btrbk

That's why I made a systemd unit file to kill Wine when shutting down and rebooting.

BOOT_ESP

I made some ebuids myself: https://github.com/rizzini/DotfilesGentooRoot/tree/master/var/db/repos/pessoal

Sometimes I miss AUR. Gentoo has overlays and the possibility of building your own ebuild file, which is cool, I made three so far, but AUR has packages for literally everything I needed that wasn't in Arch's repos. I even had to make a custom ebuild in order to install Fish 3.3.1. On Arch, I just had to install the package from the archive repo. It seems Gentoo doesn't keep many old versions.

Even then I try to create an ebuild for the package myself. At this point, I had to create three. Appimage, snap and flatpak are a no-go to me.

It's interesting to see that, apparently, the installed version has the cups USE flag. I keep my dotfiles on github, so here is my /etc/portage folder.

That is a good idea. I tried that before, but I'm in the Gentoo world just for a week. I never even googled "gentoo" before that, for example, so I failed. I managed to make two ebuilds for packages that aren't available in the repos, but I'm still figuring out how to make one for the TKG kernel. It shouldn't be too hard, since they kinda support Gentoo in their own way.

That's still easier using snapshots and something like btrbk. Snapshot the directory at start, prune if there are too many snapshots (or snapshots get too old).

I'm on Arch, but you might still find it useful: Btrfs snapshots Arch Wiki - Incremental backup to external drive GitHub - btrbk

the smoothest backup tool i have seen for Linux is btrbk works real nice and is customizable for almost all use-cases BTRFS rocks :)

I recommend redundancy and regular verification is you want to insure your data against corruption. If you do that, you can forget about things like ECC. My setup is a NUC server running Ubuntu with a USB3-connected storage drive running BTRFS. I use btrbk to auto-snapshot and auto-replicate via incremental sends to my BTRFS backup drive, and RotKraken to track integrity of the data with a monthly verification run so that I notice corruption in time to correct it.

In pondering my backup strategy, I was wondering if I could use BTRFS snapshots and a backup tool like btrbk, which is a nice integrated snapshot/backup solution I've used happily on desktop Linux. BTRFS needs subvolumes for snapshots, so I couldn't backup the host itself (which wasn't installed with a / subvolume like other distributions I've used), but it could snapshot the VMs and containers, which have their own individual subvolumes. Then btrbk can send that snapshot in an incremental fashion to external storage.

I then installed btrbk and tried to follow the instructions to create snapshots of root and home on the SSD and then send/receive those to the HDD. I mainly used https://github.com/digint/btrbk and https://mutschler.dev/linux/fedora-btrfs-35/, but I don't use luks.

For anyone using btrfs on their system, I heartily recommend btrbk, which has served me very well for making incremental backups with a customizable retention period: https://github.com/digint/btrbk

btrbk is the best solution I know.

I use BTRBK to make and copy the BTRFS snapshots to my HDD. I schedule it to run every 3 hours using a Sytemd unit file through my own script to avoid running the backup at inconvenient moments: