glabel, gmirror, and gpart
wblock at wonkity.com
Sat Aug 27 04:05:00 UTC 2011
On Fri, 26 Aug 2011, Adam Vande More wrote:
> On Fri, Aug 26, 2011 at 8:09 PM, Warren Block <wblock at wonkity.com> wrote:
> Question 2 is maybe simpler. On boot, it shows this:
> gptboot: invalid backup GPT header
> I can speculate on what causes that (whether the various g-things use the absolute last block of the device, or the last block of their area and provide their total minus
> one block; or it could be that gptboot is seeing the disk rather than the gmirror device). Can it be fixed?
> This is a long standing issue that still isn't fixed to the best of my knowledge. The problem is with gmirror and GPT.
> is the best I can do.
So it's cosmetic, but not really the kind of message that instills
confidence. gptboot needs to be able to tell if it's reading from a
gmirror. Or gmirror should provide one block less than it does, so it
doesn't overwrite the GPT backup.
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