Date: Tue, 16 Feb 2021 03:43:53 -0800 From: Mark Millard <marklmi@yahoo.com> To: Harry Schmalzbauer <freebsd@omnilan.de> Cc: Warner Losh <imp@bsdimp.com>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: New Optane AIC does not show up in FreeBSD until . . . ? Message-ID: <C0E01EE2-6CDA-4C0D-948E-86E4065728C1@yahoo.com> In-Reply-To: <d89f1e50-e1e1-4a20-07ca-a044b7c1ef1a@omnilan.de> References: <9FAFDEE8-97DA-4FF7-AADB-4BFC14F07E13.ref@yahoo.com> <9FAFDEE8-97DA-4FF7-AADB-4BFC14F07E13@yahoo.com> <CANCZdfqOptgzp_kqxEVY67GsM%2B7tpeZcNt-O--CLFFyNz0_eyw@mail.gmail.com> <85821016-60AA-4E9C-94DB-9FAD1E718182@yahoo.com> <09a02078-f282-8866-cf2e-84e35bad8899@omnilan.de> <3EA88A5C-A160-4041-91B3-9AAFEF58F494@yahoo.com> <d89f1e50-e1e1-4a20-07ca-a044b7c1ef1a@omnilan.de>
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On 2021-Feb-16, at 02:22, Harry Schmalzbauer <freebsd at omnilan.de> =
wrote:
> Am 16.02.2021 um 11:08 schrieb Mark Millard:
>> On 2021-Feb-16, at 00:48, Harry Schmalzbauer <freebsd@omnilan.de> =
wrote:
>>> Am 14.02.2021 um 02:36 schrieb Mark Millard via freebsd-current:
>>>> On 2021-Feb-13, at 16:40, Warner Losh <imp at bsdimp.com> wrote:
>>>>=20
>>>>> Are you aware of gpart create?
>>>>>=20
>>>>> Warner
>>>> =46rom which I derive that I had an implicit, incorrect
>>>> assumption that gpart show would in some way list
>>>> everything available that gpart could manipulate
>>>> (including for use in creation).
>>>=20
>>> 'geom disk status' is my first choice for such a case.
>>> Even nvd(4) should show up I think, nda(4) just changes the access =
path, not geom(8) integration, afaik.
>=20
> ...
>> Thanks for the alternatives to sysctl kern.disks
>> and to nvmecontrol devlist for making a list to
>> compare to gpart show output in order to find
>> what gpart show does not list (but can manipulate).
>=20
> gpart(8) doesn't enumerate disks without any supported partition =
scheme present.
> You can create new partition schemes with the help of gpart(8), but =
it's imho correct not to show them, because 'gpart show' is meant to =
give information about (existing) partition schemes - no scheme no info; =
thus your vanilla disk is "unknown" to gpart(8).
>=20
> I remember that I always thought the geom(8) disk class is kind of =
hidden - especially since the man page misses listing DISK in the
> "Currently available classes which are aware of geom(8)" section!
>=20
> The "show" command was enriched to contain valuable details, such as =
NAA.
> So 'geom disk' turned into one of the most useful mass storage admin =
commands. imho.
> Maybe somebody should correct the aforementioned man page section and =
add add any hint in the SEE ALSO section, because there is no gdisk(8) =
aequivalent, like for all other geom classes...
>=20
> -harry
>=20
> P.S. Put it on my loger-term todo to file a bug report with a proposed =
man page diff...
Looks like "geom -t" output avoids me having to compare
two outputs to find mismatches in the list of names: its
output is sufficient to identify the name(s) for drives
that do not have the scheme information (and the names
of those that do). This at least helps cut down what I
have to coordinate, especially when only one device is
in question.
For example, ada2 in the below has only DISK and one DEV
line, not multiple DEV's, no PART line, nor other such:
. . .
ada0 DISK ada0
ada0 PART ada0s1
ada0s1 DEV =20
ada0 PART ada0s2
ada0s2 DEV =20
ada0 DEV =20
ada1 DISK ada1
ada1 PART ada1p1
ada1p1 DEV =20
ada1 DEV =20
ada2 DISK ada2
ada2 DEV =20
da0 DISK da0
da0 PART da0p1
da0p1 DEV =20
da0 PART da0p2
da0p2 LABEL ntfs/VirtMachs
ntfs/VirtMachs DEV =20
da0p2 DEV =20
da0 DEV =20
. . .
So I can infer that I need a gpart create on ada2 .
(Presumes I know from the naming that the device
is not analogous to a cd-drive with no media in
the drive.) The output does span the nvd* devices.
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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