Am 16.05.2014 13:56, schrieb Bruce Schultz: >> I ask because in all my reorganizing furor I also thought that now >> with btrfs only I could get rid of "lvm mdraid" as dracut-modules. >> I can try ... ;-) (don't call me "ricer") > > If you have a multi-disk btrfs, I think you need to add the btrfs > dracut module. At least that's how I remember it, but its been a > while & my memory could be failing me, or it could well have changed > since then.
I currently have in /etc/dracut.conf: add_dracutmodules+="bash systemd" hostonly="yes" hostonly_cmdline="yes" and am able to boot via grub2 and efi, that means, /boot/efi (vfat) on /dev/sda1 (sda is the SSD) and / as btrfs-subvol on /dev/sda2 (with /boot as directory on it). So no multi-disk btrfs for / or /boot on this machine. - removing "lvm mdraid" from dracut slimmed down the initrd from around 6.8 MB to 5.5 MB ... nice, but not necessary as Canek mentioned. I just "play" with it to learn and understand even better. I am not sure what the module "systemd" does or is good for, and https://www.kernel.org/pub/linux/utils/boot/dracut/dracut.html#dracut.kernel does look scary and didn't tell me more about that module yet. I will read more when I find the time, for now it works very well here. Stefan
