Moin Moin! Yes newbies
section for me as well
Garuda is my first system utilizing btrfs , I am used to EXT4 just working .
So I got started reading about btrfs
.
Watched some videos, for example from Chris Titus Tech .
And then I remembered that I have 2x 1TB HDD drives in my system which are not really used.
After reading this part of the manual:
https://btrfs.wiki.kernel.org/index.php/Using_Btrfs_with_Multiple_Devices
It should go something like this.
I format my drive /dev/sda
to btrfs.
Either by shell or a GUI and then simply add the device to the pool ? (bad terminology I guess, that's why newbie section :P)
sudo btrfs device add /dev/sda /
sudo btrfs balance start /
But that's it?
Do I need to do something with btrfs subvolume
?
My desired outcome would be to have the 1TB drive as extra space for snapshots and files since I would like to include my /home
in timeshift as well.
Also is it even wise to do that with my main drive being a NVMe SSD and the other just a HDD?
Thanks for reading and help out a newbie - Thanks!
if you mean snapshot from /@ than it work only on same drive.
You can check this in timeshift.
BTRFS-Schnappschüsse werden auf der Systempartition gespeichert. Andere Partitionen werden nicht unterstützt.
=
BTRFS snapshots are stored on the system partition. Other partitions are not supported.
[2020-12-21_17-39]
Well this cleared up some part of my question.
The snapshots will only be stored in my main drive /dev/nvme0n1p1
1TB
Bro
20 February 2021 16:00
3
But you can back them up to a separate drive if what I’ve read is correct.
BTRFS literature is rather brutal.
3 Likes
SGS
20 February 2021 16:13
4
You can do, but after restoring you got old files from snapshot, you lost changed and new files.
Use rsync and save your importend files (or /home) on other SSD/HDD/nvme or ext. Disk.
Timeshift is not a backup system, if your main device break you lost all files, its more a rescue system if upgrade break the system.
3 Likes
GRUB RESCUE - YIKES!
Okay so here is what I did.
I formatted /dev/sda
and added a btrfs partition /dev/sda1
Then I created /data
btrfs device add /dev/sda1 /data
After the I thought hey now I have 1TB more space in df -h
nice!
I should balance right? I balance
btrfs filesystem balance /data
Okay that took quite long.
A subvolume for my data sounds solid.
cd /data
btrfs subvolume create eha_data
Nice.
After some time doing other stuff, I decided to reboot. (just because I felt like it)
And grub rescue.
I am now in live garuda and undoing my steps, checking if that helped and if not..
Time to read some
https://wiki.archlinux.org/index.php/GRUB
Note I took this guide for chrooting
https://logan.tw/posts/2015/05/17/grub-install-and-btrfs-root-file-system/
1 Like
Okay my system is back after undoing my unholy work of doom.
I chrooted.
Deleted the subvolume.
Deleted the drive.
reboot. and I am back again.
pew..
What did I do wrong?
1 Like