[indiana-discuss] Create empty boot environment

[Evan Layton]

On May 26, 2009, at 11:09 PM, "Fajar A. Nugraha" <fajar at fajar.net>  
wrote:

> On Wed, May 27, 2009 at 11:51 AM, Bernd Schemmer <Bernd.Schemmer at gmx.de 
> > wrote:
>>>> What's the actual problem you are trying to solve? Where are you
>>>> planning to get the bits from that you plan to put in that empty
>>>> boot environment?
>>
>> Installing other distributions in parallel to OpenSolaris in the  
>> same pool,
>> e.g. Milax. Belenix, etc.
>>
>> Also I would like this feature to reinstall for example a snapshot  
>> of the
>> rootfs which I saved on another medium.
>>
>>>> Short answer: Right now there is no interface in beadm to allow
>>>> creating an empty boot environment.
>>
>
> Seriously? Can't this do the same thing?
>

Yes, beadm does not contain an interface for this nor are there any  
plans currently for adding one. What was asked was if you could create  
an empty BE using beadm and the answer to that is no that is not  
supported.

That doesn't mean you can't fake one up outside of beadm as suggested  
below however that's not a supported method for creating BE's. Plus  
the ability to do this will probably be impacted going forwad as more  
BE validation is added to beadm. We will likely not support BE's  
created outside beadm once that validation work is complete. (see bug  
891)

-evan

> # beadm list
> BE            Active Mountpoint Space  Policy Created
> --            ------ ---------- -----  ------ -------
> opensolaris-6 -      -          12.85M static 2009-04-08 09:34
> opensolaris-7 NR     /          7.44G  static 2009-04-24 10:22
> opensolaris-8 -      -          222.0K static 2009-05-20 12:00
>
> # zfs create rpool/ROOT/opensolaris-9
>
> # beadm list
> BE            Active Mountpoint Space  Policy Created
> --            ------ ---------- -----  ------ -------
> opensolaris-6 -      -          12.85M static 2009-04-08 09:34
> opensolaris-7 NR     /          7.44G  static 2009-04-24 10:22
> opensolaris-8 -      -          222.0K static 2009-05-20 12:00
> opensolaris-9 -      -          19.0K  static 2009-05-27 12:04
>
> If we adjust "mountpoint" and "canmount" property (using exsisting BE
> as reference), import the content of another BE that supports the same
> version of zpool/zfs (possibly from backup, or from a different
> system), and edit grub menu, it should work, right?
> -- 
> Fajar
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