Re: gpt backup header?

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On May 30, 2010, at 9:16 48PM, Jonathan A. Kollasch wrote:

> On Sun, May 30, 2010 at 08:25:52PM -0400, Steven Bellovin wrote:
>> I decided to convert a disk from fdisk/mbr to gpt/wedges; however, gpt 
>> muttered that there was no room for a backup header.
>> (a) Is this a problem?
> 
> With the information given, probably yes.
> 
>> (b) If so, what should I do to solve it?  This is on amd64/5.1rc2.
> 
> You have to make room for at least 34 sectors at the end of the disk.
> How this is done depends on what's already there and what other storage
> you have available to make a "three-point turn".

There is nothing on the disks, which makes that easy...

Tnx.

                --Steve Bellovin, http://www.cs.columbia.edu/~smb