Switch from legacy ata(4) to CAM-based ATA

[Arnaud Lacombe]

Hi,

On Wed, Apr 20, 2011 at 9:17 PM, Warren Block <wblock at wonkity.com> wrote:
> On Wed, 20 Apr 2011, Arnaud Lacombe wrote:
>
>> On Wed, Apr 20, 2011 at 6:38 PM, Garrett Cooper <yanegomi at gmail.com>
>> wrote:
>>>
>>> On Wed, Apr 20, 2011 at 3:35 PM, Doug Barton <dougb at freebsd.org> wrote:
>>>
>>> glabel create <label> /dev/<blah>
>>
>> Just tested that with a kernel from HEAD and a 8.x userland. This does
>> not seem to survive a reboot.
>
> No, "create" makes a temporary label.  "label" writes a label to the last
> block of the device.
>
... which does not seem be doable when the fs is mounted:

[in single-user, with only / mounted r/w and /dev]
# geom label label root /dev/ad0s1a
geom: Can't store metadata on /dev/ad0s1a: Operation not permitted.

Unfortunately, I do not have physical access to the machine. I guess
that transition will be a royal PITA for a lot of people.

Btw, you mentioned "device", I guess you meant "file-system", didn't you ?

 - Arnaud