Trying out Btrfs as replacement for RAID-1 + LVM
by Gerard Lally from LinuxQuestions.org on (#5KDKT)
Does anybody know of a guide to Btrfs RAID-1 on Slackware? Can Grub boot from it? Can Grub be installed to both disks? Do you still need a BIOS Boot Partition for Grub on a GPT disk?
I tried this on Virtualbox. Set up a Btrfs-formatted system first on just /dev/sda2, rebooted successfully and then did the following to add /dev/sdb2 and create the RAID-1:
Code:btrfs device add /dev/sdb2 /
btrfs balance start -dconvert=raid1 -mconvert=raid1 /This was successful, but after I installed grub to the second disk /dev/sdb I had a kernel panic. I have always been able to install Grub to both disks when using mdadm RAID-1 + LVM ; is it possible to do the same with Btrfs RAID-1?
I'm curious to give Btrfs a go on my system disks (not data and backup disks just yet) because I've read that it has improved a lot over the past while.
I tried this on Virtualbox. Set up a Btrfs-formatted system first on just /dev/sda2, rebooted successfully and then did the following to add /dev/sdb2 and create the RAID-1:
Code:btrfs device add /dev/sdb2 /
btrfs balance start -dconvert=raid1 -mconvert=raid1 /This was successful, but after I installed grub to the second disk /dev/sdb I had a kernel panic. I have always been able to install Grub to both disks when using mdadm RAID-1 + LVM ; is it possible to do the same with Btrfs RAID-1?
I'm curious to give Btrfs a go on my system disks (not data and backup disks just yet) because I've read that it has improved a lot over the past while.