btrfs on luks [solved]

[nathanlkoch]

Hello,
I am attempting to install btrfs on an encrypted luks on a 32bit efi mac.

The layout is as such.

/dev/sda1 1GB vfat /boot/efi
/dev/sda2 4GB swap
/dev/sda3 luks parition formatted for btrfs

btrfs subvol=activeroot
subvol=boot
subvol=home

mounted as
btrfs subvol=activeroot /
btrfs subvol=boot /boot
/dev/sda2 /boot/efi
btrfs subvol=home /home

I half baked followed this tutorial without the use of dracut.
https://wiki.gentoo.org/wiki/Full_Encrypted_Btrfs/Native_System_Root_Guide#Mapping_names_are_build_from_uuid
I was getting errors about -gcrypt when installed cryptsetup. I just left it alone.

Because I'm using a 32bit MacPro I think I incorrectly formatted /dev/sda1 as vfat instead of regular fat and it's not detecting my system.

I have /etc/default/grub setup the way the tutorial says.
mtab looks good and so does fstab.

Could use some assistance.

From what I understand is grub needs to unlock the disk and see the partitions first but because /boot and / root are in an encrypted partition the kernel has no way of being able to be read? Is that correct?

-Nate

[nathanlkoch]

I just scrapped the install. Went luks lvm.

That documentation needs updating though. Maybe a new tutorial for btrfs encrypted for bios and eufi.