On Tuesday 28 July 2015 21:18:43 Neil Bothwick wrote: > On Wed, 29 Jul 2015 05:29:18 +1000, Bruce Schultz wrote: > > >You may not need an initramfs to run root on btrfs as long as btrfs is > > >compiled into your kernel (I haven't looked into it closely though). > > > > But I think you do if your btrfs is raid 1. The kernel can't mount > > multidisk btrfs until it done a btrfs device scan in userspace, run > > from initramfs. > > According to the btrfs wiki you can pass > device=/dev/sda1,device=/dev/sdb1 on the kernel boot line.
Thanks all. I think I'm going to dive straight in and build a new system. First I'll have another go at grub-2, then when that's working I'll start a new build. As far as I can see, /boot can just be on the single sda1, with a duplicate on sdb1 in reserve. -- Rgds Peter
