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Date:      Thu, 09 Mar 2023 10:07:16 +0000
From:      Norman Gray <gray@nxg.name>
To:        Matthias Apitz <guru@unixarea.de>
Cc:        Peter Holm <pho@FreeBSD.org>, "Steve O'Hara-Smith" <steve@sohara.org>, questions@freebsd.org
Subject:   Re: problem while moving HOME from FreeBSD to MacOS with bsdtar
Message-ID:  <EA0D2516-CA57-4527-9814-5AC100B1216E@nxg.name>
In-Reply-To: <20230309095204.GC9@sh4-5.1blu.de>
References:  <ZAmOIFc5TLj27kEz@c720-r368166> <20230309081835.afddc78d57a7f25b8f92b9aa@sohara.org> <20230309084125.GA9@sh4-5.1blu.de> <ZAmoEyCwwOq0mCXd@Peters-Air> <20230309095204.GC9@sh4-5.1blu.de>

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Matthias, hello.

On 9 Mar 2023, at 9:52, Matthias Apitz wrote:

> You're fully correct. There are two directory entries, but both point t=
o
>  the same inode and data blocks:
>
>  $ ls -li Homework HOMEWORK
>  4016236 -rw-r--r--  1 apitzm  OCLC\Domain Users  0  9 M=C3=A4r 09:37 H=
OMEWORK
>  4016236 -rw-r--r--  1 apitzm  OCLC\Domain Users  0  9 M=C3=A4r 09:37 H=
omework
>

No, there's only one directory entry, but you're listing it twice:

% ls
Homework
% ls -li
total 0
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 Homework
% ls -li Homework HOMEWORK
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 HOMEWORK
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 Homework
% ls -li Homework homework HOMEWORK hOmEwOrK
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 HOMEWORK
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 Homework
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 hOmEwOrK
32687651 -rw-r--r--  1 norman  wheel  0  9 Mar 09:59 homework

> What is this for a file system idea? I will check, if I can modify this=

> without reinstallation of the complete system.

It's just case-insensitive -- a particular design choice.

You can create new filesystems in the APFS container, either with Disk Ut=
ility or with diskutil, and that's occasionally useful (as I mentioned, N=
ix on macOS is installed in a case-sensitive volume).

I don't _think_ you can change the 'personality' of an existing volume, t=
hough, and if you were to try to install macOS on a non-standard filesyst=
em (and if you were to achieve that) I suspect the OS would break enterta=
iningly.

Best wishes,

Norman


-- =

Norman Gray  :  https://nxg.me.uk



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