From 10 Beta4 to 10 RC1 lost gpt labels added by the installer

[Johan Hendriks]

Op zaterdag 14 december 2013 schreef Adam McDougall (mcdouga9 at egr.msu.edu):

>
> On 12/13/2013 11:03, Johan Hendriks wrote:
>
>> Teske, Devin schreef:
>>
>>> On Dec 13, 2013, at 12:55 AM, Johan Hendriks wrote:
>>>
>>>  Hello all.
>>>>
>>>> I installed FreeBSD 10 Beta4 the day before the RC1 release and used
>>>> the ZFS install option, all went well.
>>>> I then downloaded the new source for 10 RC1 and did a buildworld.
>>>> It rebooted, the machine booted fine only did it show an error
>>>> regarding the swap space.
>>>> I could not mount /dev/gpt/swap0 and /dev/gpt/swap1
>>>>
>>>> /dev/diskid/DISK...... and so on.
>>>>
>>>> /dev/gpt was not there anymore.
>>>>
>>>>  Well after the upgrade i have no GPT labels any more (they are on the
>> disk, but not useable).
>> So the disk has the labels.
>> But they are not active, /dev/gpt is not available, i think it gets
>> overwritten or pushed out of the way by glabel.
>>
>> glabel list shows me the following
>> jailhost ~ # glabel list
>> Geom name: ada0
>> Providers:
>> 1. Name: diskid/DISK-WMATV654xxxx There's been a similar problem with
>> graid, are you sure that's
>>
>>> not what's going on here? That the OS has picked up on some
>>> BIOS-created thing?
>>>
>>
>>  I think you ran into the same issue I did when I replaced a HD with an
> ssd,
> and the 10 kernel started detecting a 'diskid' string from the ssd. It was
> causing
> geom to detect my disk by the diskid, and for some reason it was blocking
> access
> to my swap partition (overzealous exclusive access to the disk?). Try
> putting
> kern.geom.label.disk_ident.enable=0 in /boot/loader.conf and rebooting.
>  I've been
> meaning to file a PR.
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I will try on monday, the machine is at work.
Thanks for your time.

Regards
Johan