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devel / comp.unix.bsd.freebsd.misc / Re: make up as you go along?

SubjectAuthor
* make up as you go along?David Chmelik
+- Re: make up as you go along?Bob Eager
`- Re: make up as you go along?Philip Paeps

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make up as you go along?

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From: dchme...@gmail.com (David Chmelik)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: make up as you go along?
Date: Wed, 3 Jan 2024 02:18:45 -0000 (UTC)
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 by: David Chmelik - Wed, 3 Jan 2024 02:18 UTC

We bought new laptop (kept old including spare/slower, and interesting/
slowest with LibreBoot)... after installing/upgrading FreeBSD more times
on these, noticed something weird.
Fdisk was replaced by gpart... however uses different SSD/M2/NVMe
names than fstab--if one tries 'gpart show <device>' for device name
(without partition/slice) in fstab, gpart won't show (one does I haven't
found how to show extended partitions, though can mount).
Is fact of not having same device names ahead of time in design/plan/
standard, and the switch to git, evidence of switch to 'make up as you go
along' computer programming method used such as in GNU/Linux? It's also
known as waterfall versus agile software engineering methods or 'The
Cathedral And The Bazaar'. I depended on UNIX/*BSD decades to be more
stable/clean including more understandable than much else, but (as in case
above, it's becoming less understandable so) maybe this is slowly ending?

Re: make up as you go along?

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From: news0...@eager.cx (Bob Eager)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: make up as you go along?
Date: 3 Jan 2024 10:53:13 GMT
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 by: Bob Eager - Wed, 3 Jan 2024 10:53 UTC

On Wed, 03 Jan 2024 02:18:45 +0000, David Chmelik wrote:

> We bought new laptop (kept old including spare/slower, and interesting/
> slowest with LibreBoot)... after installing/upgrading FreeBSD more times
> on these, noticed something weird.
> Fdisk was replaced by gpart... however uses different SSD/M2/NVMe
> names than fstab--if one tries 'gpart show <device>' for device name
> (without partition/slice) in fstab, gpart won't show (one does I haven't
> found how to show extended partitions, though can mount).
> Is fact of not having same device names ahead of time in
> design/plan/
> standard, and the switch to git, evidence of switch to 'make up as you
> go along' computer programming method used such as in GNU/Linux? It's
> also known as waterfall versus agile software engineering methods or
> 'The Cathedral And The Bazaar'. I depended on UNIX/*BSD decades to be
> more stable/clean including more understandable than much else, but (as
> in case above, it's becoming less understandable so) maybe this is
> slowly ending?

These changes happened long ago (years). Do keep up.

Look in /dev to see the names. But I bet it was in release notes long ago.

--
Using UNIX since v6 (1975)...

Use the BIG mirror service in the UK:
http://www.mirrorservice.org

Re: make up as you go along?

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From: phi...@trouble.is (Philip Paeps)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: make up as you go along?
Date: Mon, 8 Jan 2024 11:18:25 +0800
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 by: Philip Paeps - Mon, 8 Jan 2024 03:18 UTC

David Chmelik <dchmelik@gmail.com> wrote:
>Fdisk was replaced by gpart...

fdisk is still installed on FreeBSD as of 14.0, and still works within
the limited scope of what it has always supported. gpart is a more
modern (and flexible) implementation with support for more partitioning
schemes found on contemporary computers. gpart is hardly new. It has
been around since FreeBSD 7.0 (2008).

>however uses different SSD/M2/NVMe names than fstab--if one tries
>'gpart show <device>' for device name (without partition/slice) in
>fstab, gpart won't show (one does I haven't found how to show extended
>partitions, though can mount).

FreeBSD releases since 12.0 (2018) include a new direct access driver
for NVMe devices: nda(4). FreeBSD 14.0 (2023) made this the default,
though the nvd(4) driver still exists if you need it.

>Is fact of not having same device names ahead of time in design/plan/
>standard

By default, the nda(4) driver creates aliases in /dev. This helps most
legacy configurations get over the upgrade. If your use case is
sufficiently exotic to need the legacy nda(4) driver for some reason,
you can set the hw.nvme.use_nvd loader tunable.

This is clearly mentioned in the 14.0-RELEASE announcement:

>>NVMe disks are now nda devices by default, for example nda0; see
>>nda(4). Symbolic links for the previous nvd(4) device names are
>>created in /dev. However, configuration such as fstab(5) should be
>>updated to refer to the new device names. Options to control the use
>>of nda devices and symbolic links are described in nda(4).
>>bdc81eeda05d (Sponsored by Netflix)

Philip


devel / comp.unix.bsd.freebsd.misc / Re: make up as you go along?

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