Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I'm new to Linux and was just wondering what blocklists are and why they are considered unreliable.

Example of my problem:

will@Will-PC:~$ sudo burg-install /dev/sda1
/usr/sbin/burg-setup: warn: Attempting to install GRUB to a partition instead of the MBR.  This is a BAD idea..
/usr/sbin/burg-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
/usr/sbin/burg-setup: error: if you really want blocklists, use --force

The problem is: /dev/sda1 is my MBR.

Any description of blocklists or advice to my problem will be appreciated!

share|improve this question

1 Answer 1

up vote 1 down vote accepted

The reason why this is unreliable is because burg is still a work in progress, and that's why this is not installed by default on Ubuntu.

And a blocklist is something specific to grub/grub2/burg ( at least in the terminology ).

This is used to read data that are not part of a file system, ie by reading directly on the disk. You can see some information on https://www.gnu.org/software/grub/manual/html_node/Block-list-syntax.html#Block-list-syntax

And no, the MBR is not on /dev/sda1, this is on the beginning of the disk ( ie on /dev/sda, the first block ), and sda1 is the first partition.

So you should really check if this is not /dev/sda that you should use. However, since the bootloader is critical, I would double check everything if I were you before touching.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.