On file systems [was: Image handling in mutt]

From	<tomas@tuxteam.de>
Newsgroups	linux.debian.user
Subject	On file systems [was: Image handling in mutt]
Date	2023-12-12 06:40 +0100
Message-ID	<HK3ES-cZy6-3@gated-at.bofh.it> (permalink)
References	(3 earlier) <HJNJL-cPXK-9@gated-at.bofh.it> <HJNTr-cQ17-1@gated-at.bofh.it> <HJOmt-cQqs-11@gated-at.bofh.it> <HJSJr-cSTr-17@gated-at.bofh.it> <HJWDn-cVq0-1@gated-at.bofh.it>
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On Tue, Dec 12, 2023 at 06:04:04AM +0800, jeremy ardley wrote:

[...]

> If you look at the NTFS file system [...]

> Underneath the hood of a NTFS file is alternate data streams (ADS). That is
> a single file can contain main different 'sub files' of completely different
> content type. Each ADS has metadata describing the stream.

I think the idea "was in the air" back then (mid-1980s), covering a wide
field between "rich file metadata" and several "streams" per file, cf.
Apple's HFS, which evolved into HFS+; NTFS is itself an evolution of
OS2's HPFs, etc, etc.

You also see, back then, increasing use of B and B+ trees in different
roles in file systems.

After all, designers moved from company to company and carried with them
ideas and teams. Companies were aggressively hiring people off other
companies.

It's actually risky to say "so and so had first this feature" without
deep research. Where do you put the limit between "file metadata" and
"file substream"? 65K? 4T? HP/UX implemented a file stream mechanism
on top of its Unix file system (those were directories which looked
like files), explicitly to support multi-architecture binaries. Remember
Apple's "fat binaries", which contained a binary for 68K and another
for PowerPC? Those were made with "forks", which was Apple's variant
of "several streams in one file". And so on.

Interesting times :-)

Cheers
-- 
t

Thread

Image handling in mutt Paul M Foster <paulf@quillandmouse.com> - 2023-12-08 18:00 +0100
  Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-08 18:10 +0100
    Re: Image handling in mutt Paul M Foster <paulf@quillandmouse.com> - 2023-12-08 22:50 +0100
      Re: Image handling in mutt David <bouncingcats@gmail.com> - 2023-12-08 23:00 +0100
        Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-08 23:10 +0100
          Re: Image handling in mutt Greg Wooledge <greg@wooledge.org> - 2023-12-08 23:40 +0100
            Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-08 23:50 +0100
              Re: Image handling in mutt Greg Wooledge <greg@wooledge.org> - 2023-12-09 00:00 +0100
                Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-09 00:10 +0100
                Re: Image handling in mutt Greg Wooledge <greg@wooledge.org> - 2023-12-09 00:20 +0100
                Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-09 00:30 +0100
              Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-09 00:00 +0100
            Re: Image handling in mutt John Hasler <john@sugarbit.com> - 2023-12-09 00:00 +0100
              Re: Image handling in mutt Greg Wooledge <greg@wooledge.org> - 2023-12-09 00:00 +0100
                Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-09 00:30 +0100
          Re: Image handling in mutt Eric S Fraga <e.fraga@ucl.ac.uk> - 2023-12-09 09:50 +0100
            Re: Image handling in mutt Curt <curty@free.fr> - 2023-12-10 17:20 +0100
              Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-10 17:30 +0100
                Re: Image handling in mutt songbird <songbird@anthive.com> - 2023-12-10 19:40 +0100
                Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-10 19:50 +0100
                Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-10 21:20 +0100
                Re: Image handling in mutt songbird <songbird@anthive.com> - 2023-12-11 02:30 +0100
                Re: Image handling in mutt debian-user@howorth.org.uk - 2023-12-11 16:30 +0100
                Re: Image handling in mutt songbird <songbird@anthive.com> - 2023-12-11 21:20 +0100
          Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 12:40 +0100
            Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-11 13:30 +0100
        Re: Image handling in mutt "Loris Bennett" <loris.bennett@fu-berlin.de> - 2023-12-11 14:10 +0100
      Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-10 21:10 +0100
        Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-10 22:00 +0100
          Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 13:20 +0100
            Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-11 13:40 +0100
              Re: Image handling in mutt Arno Lehmann <al@its-lehmann.de> - 2023-12-11 13:50 +0100
                Re: Image handling in mutt Greg Wooledge <greg@wooledge.org> - 2023-12-11 14:20 +0100
                Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 15:10 +0100
                Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-11 15:40 +0100
                Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 16:20 +0100
                Re: Image handling in mutt "Jeremy Nicoll" <jn.ml.dbi.73@letterboxes.org> - 2023-12-11 19:00 +0100
                Re: Image handling in mutt jeremy ardley <jeremy.ardley@gmail.com> - 2023-12-11 23:10 +0100
                On file systems [was: Image handling in mutt] <tomas@tuxteam.de> - 2023-12-12 06:40 +0100
                Re: On file systems "Thomas Schmitt" <scdbackup@gmx.net> - 2023-12-12 11:50 +0100
              Re: Image handling in mutt Eric S Fraga <e.fraga@ucl.ac.uk> - 2023-12-11 13:50 +0100
              Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 15:00 +0100
                Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-11 15:20 +0100
                Re: Image handling in mutt Vincent Lefevre <vincent@vinc17.net> - 2023-12-11 15:40 +0100
                Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-11 15:50 +0100
                Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-11 15:50 +0100
          Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-11 16:00 +0100
            Re: Image handling in mutt Pocket <pocket@columbus.rr.com> - 2023-12-11 16:10 +0100
              Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-11 17:10 +0100
            Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-11 16:10 +0100
              Re: Image handling in mutt Stefan Monnier <monnier@iro.umontreal.ca> - 2023-12-11 16:20 +0100
                Re: Image handling in mutt <tomas@tuxteam.de> - 2023-12-11 16:30 +0100
  Re: Image handling in mutt Zenaan Harkness <zenaan@gmail.com> - 2023-12-11 00:10 +0100
    Re: Image handling in mutt Zenaan Harkness <zenaan@gmail.com> - 2023-12-11 01:20 +0100
    Re: Image handling in mutt David Wright <deblis@lionunicorn.co.uk> - 2023-12-11 16:30 +0100

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