I need some swap partion help on new 10.1 install

[Bob Willcox]

On Mon, Jan 05, 2015 at 08:11:27PM -0800, Kevin Oberman wrote:
> On Mon, Jan 5, 2015 at 7:04 PM, Warren Block <wblock at wonkity.com> wrote:
> 
> > On Mon, 5 Jan 2015, Bob Willcox wrote:
> >
> >  On Sun, Jan 04, 2015 at 06:37:18PM -0700, Warren Block wrote:
> >>
> >>> On Sat, 3 Jan 2015, Michael Butler wrote:
> >>>
> >>>  On 01/03/15 19:35, Kevin Oberman wrote:
> >>>>
> >>>> [ .. snip .. ]
> >>>>
> >>>>  As per an earlier suggestion, did you put:
> >>>>>  kern.geom.label.gpt.enable=0
> >>>>> into /boot/loader.conf? If so, that's why you lack a /dev/gpt label.
> >>>>> This
> >>>>> is usually a "friendlier" string than the diskid, but both work equally
> >>>>> well.
> >>>>>
> >>>>
> >>>> bsdinstall does that on its own - you have to manually
> >>>> remove/comment/set to "1" after installation :-(
> >>>>
> >>>
> >>> gpt, or gptid?  The first would be a terrible regression, the second,
> >>> not so much.
> >>>
> >>
> >> The more I read of this thread the more confused I get. What should I
> >> have in
> >> /boot/loader.conf to get the old behavior with more traditional device
> >> names?
> >>
> >> Also, if bsdinstall doesn't do this for me automatically, why did it put
> >> /dev/ada0p2 in the fstab for swap?
> >>
> >
> > The best way is to use GPT labels, which are stored in the GPT header.
> > They are portable, so keep working if the drive device name changes (ada0
> > to da1, say).
> >
> > GPT labels can be set with gpart modify.  The labels appear in /dev/gpt/.
> > As mentioned before, they might not appear if a partition is mounted due to
> > GEOM "withering".
> >
> > GPT labels are enabled by default.  If bsdinstall is disabling them, it is
> > a regression.
> >
> > GPT IDs, on the other hand, are a unique generated ID code that can appear
> > at the same time.  Many of us find them not very useful and disable them in
> > loader.conf.
> >
> > I have only upgraded systems to 10.1, so don't know what bsdinstall does
> > on a new install.
> >
> 
> Just checked head and bsdinstall does not disable GPT labels. It does
> disable gptid labels (which IMHO is a good thing).

So, what should I put in /boot/loader.conf? Can I enable both GPT and GPT IDs
with this:

kern.geom.label.gpt.enable="1"
kern.geom.label.gptid.enable="1"

And if I do, should I expect any problems with doing that?

Bob


> --
> R. Kevin Oberman, Network Engineer, Retired
> E-mail: rkoberman at gmail.com

-- 
Bob Willcox    | Men who cherish for women the highest
bob at immure.com | respect are seldom popular with them.
Austin, TX     |         -- Joseph Addison