Re: `grub-install` failed on a partitionless fully luks encrypted 4TB HDD

[Andrei Borzenkov]

On Fri, Dec 9, 2016 at 9:52 AM, Hamid Nassiby <address@hidden> wrote:
> Hi Andrei,
>
> The output of "fdisk -l /dev/sdb":
>
>> Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
>> Units: sectors of 1 * 512 = 512 bytes
>> Sector size (logical/physical): 512 bytes / 4096 bytes
>> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
>>
>
> The output of "blkid":
>
>> /dev/mapper/wallet: UUID="$Luks" TYPE="LVM2_member"
>> /dev/mapper/my_vg-root: LABEL="root" UUID="$root" UUID_SUB="$root_sub"
>> TYPE="btrfs"
>> /dev/sdb: UUID="$sdb" TYPE="crypto_LUKS"

There is no place to install bootloader on this disk. Create partition
to use as encrypted container, then you will be able to install
bootloader. As you have 4TB disk, you need GPT, so you should
additionally create BIOS boot partition where bootloader will be
installed.