I run my system with a separate disk fro home file in a RAID. I discovered yesterday that BTRFS has a builtin functionality of doing RAID setups. I want to try that.
A friend told me that even with manual partitioning the snapshots setup is done regardless so I wonder if I can setup BTRFS RAID for install. I know I need to add some module to initram image but don't know how or which module. I think borked my system yesterday because of not adding that to initram, it complained about boot partition not being mounted and the Live session couldn't repair the grub install because of this so I had to reinstall (but I really don't know what happened). Anyways I intend to reinstall because I forgot hibernation this time around.
If you don’t have an initrd, or your initrd doesn’t perform a btrfs device scan, you can still mount a multi-volume btrfs filesystem by passing all the devices in the filesystem explicitly to the mount command. A suitable /etc/fstab entry would be:
Using device is not recommended, as it is sensitive to device names changing that is affected by the order of discovery of the devices. You should really be using a initramfs. Most modern distributions will do this for you automatically if you install their own btrfs-progs package.
Using device=PARTUUID=... with GPT partition UUIDs would also work and be less fragile
btrfs device scan is used to scan all of the block devices under /dev and probe for Btrfs volumes. This is required after loading the btrfs module if you’re running with more than one device in a filesystem.
After forcing the terminal to override the former btrfs file system the terminal created the raid. But the installer doesn’t show me the raid. It show two separated drives.
Update: idk if it worked, but I’ve did it this way:
I’ve booted the live image and started the terminal. With sudo and your mk.btrfs raid0 code I’ve created raid0.
In the installer I’ve set to manually partitioning and set both 1TB Drives to home. /dev/sda = /home and /dev/sdb = /home .
My ssd as Root and grub-bios.
Update 2 : I can confirm that your tutorial absolutely working.
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