----- Forwarded message from Andrew Greig <pushin.linux@gmail.com> ----- Date: Mon, 25 Feb 2019 21:50:56 +1100 From: Andrew Greig <pushin.linux@gmail.com> To: Craig Sanders <cas@taz.net.au> Subject: Re: Proposed road map for 1 SSD & 2 HDDs set up in btrfs as RAID1 -- success!! Hi all, I have a working GUI and and a working btrfs RAID1, data is loading at present but it is a lot slower as the feed is from USB3 to a SATA HDD. But I can work with that. Really overjoyed, I have learned a lot, and probably tormented Craig and the list a lot, BUT I AM GRATEFUL!! Thank you Andrew On 25/2/19 1:22 pm, Craig Sanders via luv-main wrote:

On Mon, Feb 25, 2019 at 06:44:57AM +1100, Andrew Greig wrote:

...

Now it is time to see if I have learned anything.

1Tb SSD and 2 x 2Tb SATA HDDs, motherboard is a UEFI board but I have never used UEFI with this board.

Ubuntu desktop obviously ignored it.

Using Gparted partition the SSD thus:

512MB EFI Partition /dev//sda1, formatted FAT32, primary       (boot?) 8 Gb allocated to SWAP

rest of the disk _*/*__dev/_sda2, primary, formatted btrfs mounted as / Looks good except that if you have an EFI partition (sda1) and a swap partition (sda2) then the btrfs root partition will be sda3, not sda2.

...

Partition the first HDD /dev/sdb1primary, formatted btrfs , mounted as /data

Second HDD same size leave completely blank The second 2TB HDD (sdc) needs to be partitioned exactly the same as the first (sdb).

I don't think gparted will let you create a partition without formatting it (as a filesystem or as swap or whatever), so just let it format the partition and then run the btrfs commands as below.

...

After the system is installed add the second HDD withtwo lines in the terminal

          sudo btrfs device add -f /dev/sdc1 /data           sudo btrfs balance start -dconvert=raid1 -mconvert=raid1 /data You can do this after the system is installed, or from a root shell while booted on gparted. It doesn't matter either way, although it's probably better/easier to do it from gparted (there'll only be the one /data fs for the ubuntu installer to detect so you won't end up with /data0 and /data1 again)

craig

-- craig sanders <cas@taz.net.au> _______________________________________________ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main

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