Re: RAID1 assembled broken array

On Thu, 2009-09-17 at 12:44 -0400, Doug Ledford wrote:

quoted

quoted

1.0 also protects from this problem.

So what's the best way to update a 0.9 superblock to 1.0 format?

mdadm --assemble --metadata=1.0 --update=summaries ... ?

I don't think you can.  You just have to create a new array with the  
new superblock.

Hmm. Looks like you're right.

Consider this to be a feature request, then. If 1.0 is more reasonable
than 0.9, there should be a "safe" upgrade path.