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Date:      Fri, 9 Jul 2021 19:02:18 +0100
From:      Helder Novais <helder.armando@hotmail.com>
To:        freebsd-doc@FreeBSD.org
Subject:   Ext4 read-only warning, Handbook
Message-ID:  <DB7PR07MB396422CBA3F43E8372E003F989189@DB7PR07MB3964.eurprd07.prod.outlook.com>

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The handbook reveals that FreeBSD has limited support to EXT journalling 
and encryption, however, it doesn't explain how limited the support is.

I mounted an ext4 partition that was meant to be shared with linux (yes, 
with journalling, my bad) and the files edited in were corrupted. I had 
to run fsck on it and fix the errors, with potential loss of data.

Only after that did I read: https://wiki.freebsd.org/Ext2fs
"

NOTE: If you are trying to mount Ext4 partitions, and we don't yet 
support writing on your particular release, remember to specifically 
mount the filesystem *read-only*.

"

As a warning to new users, could you please add this line to the 
Handbook? This note is VERY important and shouldn't be left out.

PS: How good is the support for ext2? I plan on creating an ext2 sharing 
partition for both bsd and linux.


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